diff --git a/tests/helpers.py b/tests/helpers.py
index 34341464d..b7614b93d 100644
--- a/tests/helpers.py
+++ b/tests/helpers.py
@@ -1,41 +1,8 @@
-from collections.abc import Iterable, Mapping
 from uuid import UUID
 
 from sure import assertion
 
 
-@assertion
-def containing_item_with_attributes(context, **kwargs):
-    contains = False
-    if kwargs and isinstance(context.obj, Iterable):
-        for item in context.obj:
-            if not isinstance(item, dict):
-                continue
-            for k, v in kwargs.items():
-                if k not in item or item[k] != v:
-                    break
-            else:
-                contains = True
-    if context.negative:
-        assert not contains, f"{context.obj} contains matching item {kwargs}"
-    else:
-        assert contains, f"{context.obj} does not contain matching item {kwargs}"
-    return True
-
-
-@assertion
-def match_dict(context, dict_value):
-    assert isinstance(dict_value, Mapping), f"Invalid match target value: {dict_value}"
-    assert isinstance(
-        context.obj, Mapping
-    ), f"Expected dict like object, but got: {context.obj}"
-
-    for k, v in dict_value.items():
-        assert k in context.obj, f"No such key '{k}' in {context.obj}"
-        context.obj[k].should.equal(v)
-    return True
-
-
 @assertion
 def match_uuid4(context):
     try:
diff --git a/tests/test_cloudfront/test_cloudfront.py b/tests/test_cloudfront/test_cloudfront.py
index 507cc9085..ab2784314 100644
--- a/tests/test_cloudfront/test_cloudfront.py
+++ b/tests/test_cloudfront/test_cloudfront.py
@@ -3,7 +3,6 @@ import pytest
 import boto3
 from botocore.exceptions import ClientError, ParamValidationError
 from moto import mock_cloudfront
-import sure  # noqa # pylint: disable=unused-import
 from moto.core import DEFAULT_ACCOUNT_ID as ACCOUNT_ID
 from . import cloudfront_test_scaffolding as scaffold
 
@@ -26,122 +25,100 @@ def test_update_distribution():
     dist_config["Origins"]["Items"][0]["OriginPath"] = "/updated"
     dist_config["Aliases"] = {"Quantity": len(aliases), "Items": aliases}
 
-    resp = client.update_distribution(
+    dist = client.update_distribution(
         DistributionConfig=dist_config, Id=dist_id, IfMatch=dist_etag
-    )
+    )["Distribution"]
+    assert dist["ARN"] == f"arn:aws:cloudfront:{ACCOUNT_ID}:distribution/{dist['Id']}"
+    assert dist["Status"] == "Deployed"
+    assert "LastModifiedTime" in dist
+    assert dist["InProgressInvalidationBatches"] == 0
+    assert ".cloudfront.net" in dist["DomainName"]
 
-    resp.should.have.key("Distribution")
-    distribution = resp["Distribution"]
-    distribution.should.have.key("Id")
-    distribution.should.have.key("ARN").equals(
-        f"arn:aws:cloudfront:{ACCOUNT_ID}:distribution/{distribution['Id']}"
-    )
-    distribution.should.have.key("Status").equals("Deployed")
-    distribution.should.have.key("LastModifiedTime")
-    distribution.should.have.key("InProgressInvalidationBatches").equals(0)
-    distribution.should.have.key("DomainName").should.contain(".cloudfront.net")
+    assert dist["ActiveTrustedSigners"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    distribution.should.have.key("ActiveTrustedSigners")
-    signers = distribution["ActiveTrustedSigners"]
-    signers.should.have.key("Enabled").equals(False)
-    signers.should.have.key("Quantity").equals(0)
+    assert dist["ActiveTrustedKeyGroups"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    distribution.should.have.key("ActiveTrustedKeyGroups")
-    key_groups = distribution["ActiveTrustedKeyGroups"]
-    key_groups.should.have.key("Enabled").equals(False)
-    key_groups.should.have.key("Quantity").equals(0)
+    config = dist["DistributionConfig"]
+    assert config["CallerReference"] == "ref"
 
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-    config.should.have.key("CallerReference").should.equal("ref")
+    assert config["Aliases"] == dist_config["Aliases"]
 
-    config.should.have.key("Aliases")
-    config["Aliases"].should.equal(dist_config["Aliases"])
-
-    config.should.have.key("Origins")
     origins = config["Origins"]
-    origins.should.have.key("Quantity").equals(1)
-    origins.should.have.key("Items").length_of(1)
+    assert origins["Quantity"] == 1
+    assert len(origins["Items"]) == 1
     origin = origins["Items"][0]
-    origin.should.have.key("Id").equals("origin1")
-    origin.should.have.key("DomainName").equals("asdf.s3.us-east-1.amazonaws.com")
-    origin.should.have.key("OriginPath").equals("/updated")
+    assert origin["Id"] == "origin1"
+    assert origin["DomainName"] == "asdf.s3.us-east-1.amazonaws.com"
+    assert origin["OriginPath"] == "/updated"
 
-    origin.should.have.key("CustomHeaders")
-    origin["CustomHeaders"].should.have.key("Quantity").equals(0)
+    assert origin["CustomHeaders"]["Quantity"] == 0
 
-    origin.should.have.key("ConnectionAttempts").equals(3)
-    origin.should.have.key("ConnectionTimeout").equals(10)
-    origin.should.have.key("OriginShield").equals(
-        {"Enabled": False, "OriginShieldRegion": "None"}
-    )
+    assert origin["ConnectionAttempts"] == 3
+    assert origin["ConnectionTimeout"] == 10
+    assert origin["OriginShield"] == {"Enabled": False, "OriginShieldRegion": "None"}
 
-    config.should.have.key("OriginGroups").equals({"Quantity": 0})
+    assert config["OriginGroups"] == {"Quantity": 0}
 
-    config.should.have.key("DefaultCacheBehavior")
     default_cache = config["DefaultCacheBehavior"]
-    default_cache.should.have.key("TargetOriginId").should.equal("origin1")
-    default_cache.should.have.key("TrustedSigners")
+    assert default_cache["TargetOriginId"] == "origin1"
 
     signers = default_cache["TrustedSigners"]
-    signers.should.have.key("Enabled").equals(False)
-    signers.should.have.key("Quantity").equals(0)
+    assert signers["Enabled"] is False
+    assert signers["Quantity"] == 0
 
-    default_cache.should.have.key("TrustedKeyGroups")
     groups = default_cache["TrustedKeyGroups"]
-    groups.should.have.key("Enabled").equals(False)
-    groups.should.have.key("Quantity").equals(0)
+    assert groups["Enabled"] is False
+    assert groups["Quantity"] == 0
 
-    default_cache.should.have.key("ViewerProtocolPolicy").equals("allow-all")
+    assert default_cache["ViewerProtocolPolicy"] == "allow-all"
 
-    default_cache.should.have.key("AllowedMethods")
     methods = default_cache["AllowedMethods"]
-    methods.should.have.key("Quantity").equals(2)
-    methods.should.have.key("Items")
-    set(methods["Items"]).should.equal({"HEAD", "GET"})
+    assert methods["Quantity"] == 2
+    assert set(methods["Items"]) == {"HEAD", "GET"}
 
-    methods.should.have.key("CachedMethods")
     cached_methods = methods["CachedMethods"]
-    cached_methods.should.have.key("Quantity").equals(2)
-    set(cached_methods["Items"]).should.equal({"HEAD", "GET"})
+    assert cached_methods["Quantity"] == 2
+    assert set(cached_methods["Items"]) == {"HEAD", "GET"}
 
-    default_cache.should.have.key("SmoothStreaming").equals(False)
-    default_cache.should.have.key("Compress").equals(True)
-    default_cache.should.have.key("LambdaFunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FieldLevelEncryptionId").equals("")
-    default_cache.should.have.key("CachePolicyId")
+    assert default_cache["SmoothStreaming"] is False
+    assert default_cache["Compress"] is True
+    assert default_cache["LambdaFunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FieldLevelEncryptionId"] == ""
+    assert "CachePolicyId" in default_cache
 
-    config.should.have.key("CacheBehaviors").equals({"Quantity": 0})
-    config.should.have.key("CustomErrorResponses").equals({"Quantity": 0})
-    config.should.have.key("Comment").equals(
-        "an optional comment that's not actually optional"
-    )
+    assert config["CacheBehaviors"] == {"Quantity": 0}
+    assert config["CustomErrorResponses"] == {"Quantity": 0}
+    assert config["Comment"] == "an optional comment that's not actually optional"
 
-    config.should.have.key("Logging")
     logging = config["Logging"]
-    logging.should.have.key("Enabled").equals(False)
-    logging.should.have.key("IncludeCookies").equals(False)
-    logging.should.have.key("Bucket").equals("")
-    logging.should.have.key("Prefix").equals("")
+    assert logging["Enabled"] is False
+    assert logging["IncludeCookies"] is False
+    assert logging["Bucket"] == ""
+    assert logging["Prefix"] == ""
 
-    config.should.have.key("PriceClass").equals("PriceClass_All")
-    config.should.have.key("Enabled").equals(False)
-    config.should.have.key("WebACLId")
-    config.should.have.key("HttpVersion").equals("http2")
-    config.should.have.key("IsIPV6Enabled").equals(True)
+    assert config["PriceClass"] == "PriceClass_All"
+    assert config["Enabled"] is False
+    assert "WebACLId" in config
+    assert config["HttpVersion"] == "http2"
+    assert config["IsIPV6Enabled"] is True
 
-    config.should.have.key("ViewerCertificate")
     cert = config["ViewerCertificate"]
-    cert.should.have.key("CloudFrontDefaultCertificate").equals(True)
-    cert.should.have.key("MinimumProtocolVersion").equals("TLSv1")
-    cert.should.have.key("CertificateSource").equals("cloudfront")
+    assert cert["CloudFrontDefaultCertificate"] is True
+    assert cert["MinimumProtocolVersion"] == "TLSv1"
+    assert cert["CertificateSource"] == "cloudfront"
 
-    config.should.have.key("Restrictions")
-    config["Restrictions"].should.have.key("GeoRestriction")
     restriction = config["Restrictions"]["GeoRestriction"]
-    restriction.should.have.key("RestrictionType").equals("none")
-    restriction.should.have.key("Quantity").equals(0)
+    assert restriction["RestrictionType"] == "none"
+    assert restriction["Quantity"] == 0
 
 
 @mock_cloudfront
@@ -166,10 +143,10 @@ def test_update_distribution_no_such_distId():
         )
 
     metadata = error.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(404)
+    assert metadata["HTTPStatusCode"] == 404
     err = error.value.response["Error"]
-    err["Code"].should.equal("NoSuchDistribution")
-    err["Message"].should.equal("The specified distribution does not exist.")
+    assert err["Code"] == "NoSuchDistribution"
+    assert err["Message"] == "The specified distribution does not exist."
 
 
 @mock_cloudfront
@@ -194,9 +171,9 @@ def test_update_distribution_distId_is_None():
         )
 
     typename = error.typename
-    typename.should.equal("ParamValidationError")
+    assert typename == "ParamValidationError"
     error_str = "botocore.exceptions.ParamValidationError: Parameter validation failed:\nInvalid type for parameter Id, value: None, type: <class 'NoneType'>, valid types: <class 'str'>"
-    error.exconly().should.equal(error_str)
+    assert error.exconly() == error_str
 
 
 @mock_cloudfront
@@ -220,11 +197,11 @@ def test_update_distribution_IfMatch_not_set():
         )
 
     metadata = error.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(400)
+    assert metadata["HTTPStatusCode"] == 400
     err = error.value.response["Error"]
-    err["Code"].should.equal("InvalidIfMatchVersion")
+    assert err["Code"] == "InvalidIfMatchVersion"
     msg = "The If-Match version is missing or not valid for the resource."
-    err["Message"].should.equal(msg)
+    assert err["Message"] == msg
 
 
 @mock_cloudfront
@@ -243,6 +220,6 @@ def test_update_distribution_dist_config_not_set():
         client.update_distribution(Id=dist_id, IfMatch=dist_etag)
 
     typename = error.typename
-    typename.should.equal("ParamValidationError")
+    assert typename == "ParamValidationError"
     error_str = 'botocore.exceptions.ParamValidationError: Parameter validation failed:\nMissing required parameter in input: "DistributionConfig"'
-    error.exconly().should.equal(error_str)
+    assert error.exconly() == error_str
diff --git a/tests/test_cloudfront/test_cloudfront_dist_tags.py b/tests/test_cloudfront/test_cloudfront_dist_tags.py
index 75f3627a6..13e9e1e86 100644
--- a/tests/test_cloudfront/test_cloudfront_dist_tags.py
+++ b/tests/test_cloudfront/test_cloudfront_dist_tags.py
@@ -1,7 +1,6 @@
 import boto3
 from moto import mock_cloudfront
 from . import cloudfront_test_scaffolding as scaffold
-import sure  # noqa # pylint: disable=unused-import
 
 
 @mock_cloudfront
@@ -12,13 +11,11 @@ def test_create_distribution_with_tags():
     config = {"DistributionConfig": config, "Tags": tags}
 
     resp = client.create_distribution_with_tags(DistributionConfigWithTags=config)
-    resp.should.have.key("Distribution")
 
     resp = client.list_tags_for_resource(Resource=resp["Distribution"]["ARN"])
-    resp.should.have.key("Tags")
-    resp["Tags"].should.have.key("Items").length_of(2)
-    resp["Tags"]["Items"].should.contain({"Key": "k1", "Value": "v1"})
-    resp["Tags"]["Items"].should.contain({"Key": "k2", "Value": "v2"})
+    assert len(resp["Tags"]["Items"]) == 2
+    assert {"Key": "k1", "Value": "v1"} in resp["Tags"]["Items"]
+    assert {"Key": "k2", "Value": "v2"} in resp["Tags"]["Items"]
 
 
 @mock_cloudfront
@@ -29,9 +26,7 @@ def test_create_distribution_with_tags_only_one_tag():
     config = {"DistributionConfig": config, "Tags": tags}
 
     resp = client.create_distribution_with_tags(DistributionConfigWithTags=config)
-    resp.should.have.key("Distribution")
 
     resp = client.list_tags_for_resource(Resource=resp["Distribution"]["ARN"])
-    resp.should.have.key("Tags")
-    resp["Tags"].should.have.key("Items").length_of(1)
-    resp["Tags"]["Items"].should.contain({"Key": "k1", "Value": "v1"})
+    assert len(resp["Tags"]["Items"]) == 1
+    assert {"Key": "k1", "Value": "v1"} in resp["Tags"]["Items"]
diff --git a/tests/test_cloudfront/test_cloudfront_distributions.py b/tests/test_cloudfront/test_cloudfront_distributions.py
index 962839823..addda8cd2 100644
--- a/tests/test_cloudfront/test_cloudfront_distributions.py
+++ b/tests/test_cloudfront/test_cloudfront_distributions.py
@@ -4,7 +4,6 @@ from moto import mock_cloudfront
 from moto.core import DEFAULT_ACCOUNT_ID as ACCOUNT_ID
 from . import cloudfront_test_scaffolding as scaffold
 import pytest
-import sure  # noqa # pylint: disable=unused-import
 
 
 @mock_cloudfront
@@ -12,121 +11,110 @@ def test_create_distribution_s3_minimum():
     client = boto3.client("cloudfront", region_name="us-west-1")
     config = scaffold.example_distribution_config("ref")
 
-    resp = client.create_distribution(DistributionConfig=config)
-    resp.should.have.key("Distribution")
+    dist = client.create_distribution(DistributionConfig=config)["Distribution"]
+    assert dist["ARN"] == f"arn:aws:cloudfront:{ACCOUNT_ID}:distribution/{dist['Id']}"
+    assert dist["Status"] == "InProgress"
+    assert "LastModifiedTime" in dist
+    assert dist["InProgressInvalidationBatches"] == 0
+    assert ".cloudfront.net" in dist["DomainName"]
 
-    distribution = resp["Distribution"]
-    distribution.should.have.key("Id")
-    distribution.should.have.key("ARN").equals(
-        f"arn:aws:cloudfront:{ACCOUNT_ID}:distribution/{distribution['Id']}"
-    )
-    distribution.should.have.key("Status").equals("InProgress")
-    distribution.should.have.key("LastModifiedTime")
-    distribution.should.have.key("InProgressInvalidationBatches").equals(0)
-    distribution.should.have.key("DomainName").should.contain(".cloudfront.net")
+    assert dist["ActiveTrustedSigners"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    distribution.should.have.key("ActiveTrustedSigners")
-    signers = distribution["ActiveTrustedSigners"]
-    signers.should.have.key("Enabled").equals(False)
-    signers.should.have.key("Quantity").equals(0)
+    assert dist["ActiveTrustedKeyGroups"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    distribution.should.have.key("ActiveTrustedKeyGroups")
-    key_groups = distribution["ActiveTrustedKeyGroups"]
-    key_groups.should.have.key("Enabled").equals(False)
-    key_groups.should.have.key("Quantity").equals(0)
+    config = dist["DistributionConfig"]
+    assert config["CallerReference"] == "ref"
 
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-    config.should.have.key("CallerReference").should.equal("ref")
+    assert config["Aliases"]["Quantity"] == 0
 
-    config.should.have.key("Aliases")
-    config["Aliases"].should.have.key("Quantity").equals(0)
-
-    config.should.have.key("Origins")
     origins = config["Origins"]
-    origins.should.have.key("Quantity").equals(1)
-    origins.should.have.key("Items").length_of(1)
+    assert origins["Quantity"] == 1
+    assert len(origins["Items"]) == 1
     origin = origins["Items"][0]
-    origin.should.have.key("Id").equals("origin1")
-    origin.should.have.key("DomainName").equals("asdf.s3.us-east-1.amazonaws.com")
-    origin.should.have.key("OriginPath").equals("/example")
+    assert origin["Id"] == "origin1"
+    assert origin["DomainName"] == "asdf.s3.us-east-1.amazonaws.com"
+    assert origin["OriginPath"] == "/example"
 
-    origin.should.have.key("CustomHeaders")
-    origin["CustomHeaders"].should.have.key("Quantity").equals(0)
+    assert origin["CustomHeaders"]["Quantity"] == 0
 
-    origin.should.have.key("ConnectionAttempts").equals(3)
-    origin.should.have.key("ConnectionTimeout").equals(10)
-    origin.should.have.key("OriginShield").equals({"Enabled": False})
+    assert origin["ConnectionAttempts"] == 3
+    assert origin["ConnectionTimeout"] == 10
+    assert origin["OriginShield"] == {"Enabled": False}
 
-    config.should.have.key("OriginGroups").equals({"Quantity": 0})
+    assert config["OriginGroups"] == {"Quantity": 0}
 
-    config.should.have.key("DefaultCacheBehavior")
     default_cache = config["DefaultCacheBehavior"]
-    default_cache.should.have.key("TargetOriginId").should.equal("origin1")
-    default_cache.should.have.key("TrustedSigners")
+    assert default_cache["TargetOriginId"] == "origin1"
 
-    signers = default_cache["TrustedSigners"]
-    signers.should.have.key("Enabled").equals(False)
-    signers.should.have.key("Quantity").equals(0)
+    assert default_cache["TrustedSigners"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    default_cache.should.have.key("TrustedKeyGroups")
-    groups = default_cache["TrustedKeyGroups"]
-    groups.should.have.key("Enabled").equals(False)
-    groups.should.have.key("Quantity").equals(0)
+    assert default_cache["TrustedKeyGroups"] == {
+        "Enabled": False,
+        "Items": [],
+        "Quantity": 0,
+    }
 
-    default_cache.should.have.key("ViewerProtocolPolicy").equals("allow-all")
+    assert default_cache["ViewerProtocolPolicy"] == "allow-all"
 
-    default_cache.should.have.key("AllowedMethods")
     methods = default_cache["AllowedMethods"]
-    methods.should.have.key("Quantity").equals(2)
-    methods.should.have.key("Items")
-    set(methods["Items"]).should.equal({"HEAD", "GET"})
+    assert methods["Quantity"] == 2
+    assert set(methods["Items"]) == {"HEAD", "GET"}
 
-    methods.should.have.key("CachedMethods")
     cached_methods = methods["CachedMethods"]
-    cached_methods.should.have.key("Quantity").equals(2)
-    set(cached_methods["Items"]).should.equal({"HEAD", "GET"})
+    assert cached_methods["Quantity"] == 2
+    assert set(cached_methods["Items"]) == {"HEAD", "GET"}
 
-    default_cache.should.have.key("SmoothStreaming").equals(False)
-    default_cache.should.have.key("Compress").equals(True)
-    default_cache.should.have.key("LambdaFunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FieldLevelEncryptionId").equals("")
-    default_cache.should.have.key("CachePolicyId")
+    assert default_cache["SmoothStreaming"] is False
+    assert default_cache["Compress"] is True
+    assert default_cache["LambdaFunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FieldLevelEncryptionId"] == ""
+    assert "CachePolicyId" in default_cache
 
-    config.should.have.key("CacheBehaviors").equals({"Quantity": 0})
-    config.should.have.key("CustomErrorResponses").equals({"Quantity": 0})
-    config.should.have.key("Comment").equals(
-        "an optional comment that's not actually optional"
-    )
+    assert config["CacheBehaviors"] == {"Quantity": 0}
+    assert config["CustomErrorResponses"] == {"Quantity": 0}
+    assert config["Comment"] == "an optional comment that's not actually optional"
 
-    config.should.have.key("Logging")
-    logging = config["Logging"]
-    logging.should.have.key("Enabled").equals(False)
-    logging.should.have.key("IncludeCookies").equals(False)
-    logging.should.have.key("Bucket").equals("")
-    logging.should.have.key("Prefix").equals("")
+    assert config["Logging"] == {
+        "Bucket": "",
+        "Enabled": False,
+        "IncludeCookies": False,
+        "Prefix": "",
+    }
 
-    config.should.have.key("PriceClass").equals("PriceClass_All")
-    config.should.have.key("Enabled").equals(False)
-    config.should.have.key("WebACLId")
-    config.should.have.key("HttpVersion").equals("http2")
-    config.should.have.key("IsIPV6Enabled").equals(True)
+    assert config["PriceClass"] == "PriceClass_All"
+    assert config["Enabled"] is False
+    assert "WebACLId" in config
+    assert config["HttpVersion"] == "http2"
+    assert config["IsIPV6Enabled"] is True
 
-    config.should.have.key("ViewerCertificate")
-    cert = config["ViewerCertificate"]
-    cert.should.have.key("CloudFrontDefaultCertificate").equals(True)
-    cert.should.have.key("MinimumProtocolVersion").equals("TLSv1")
-    cert.should.have.key("CertificateSource").equals("cloudfront")
+    assert config["ViewerCertificate"] == {
+        "ACMCertificateArn": "",
+        "Certificate": "",
+        "CertificateSource": "cloudfront",
+        "CloudFrontDefaultCertificate": True,
+        "IAMCertificateId": "",
+        "MinimumProtocolVersion": "TLSv1",
+        "SSLSupportMethod": "",
+    }
 
-    config.should.have.key("Restrictions")
-    config["Restrictions"].should.have.key("GeoRestriction")
     restriction = config["Restrictions"]["GeoRestriction"]
-    restriction.should.have.key("RestrictionType").equals("none")
-    restriction.should.have.key("Quantity").equals(0)
+    assert restriction["RestrictionType"] == "none"
+    assert restriction["Quantity"] == 0
 
-    config.should.have.key("WebACLId")
-    config.should.have.key("WebACLId").equals("")
+    assert config["WebACLId"] == ""
 
 
 @mock_cloudfront
@@ -141,19 +129,14 @@ def test_create_distribution_with_logging():
     }
 
     resp = client.create_distribution(DistributionConfig=config)
-    resp.should.have.key("Distribution")
+    config = resp["Distribution"]["DistributionConfig"]
 
-    distribution = resp["Distribution"]
-
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-
-    config.should.have.key("Logging")
-    logging = config["Logging"]
-    logging.should.have.key("Enabled").equals(True)
-    logging.should.have.key("IncludeCookies").equals(True)
-    logging.should.have.key("Bucket").equals("logging-bucket")
-    logging.should.have.key("Prefix").equals("logging-bucket")
+    assert config["Logging"] == {
+        "Bucket": "logging-bucket",
+        "Enabled": True,
+        "IncludeCookies": True,
+        "Prefix": "logging-bucket",
+    }
 
 
 @mock_cloudfront
@@ -163,15 +146,9 @@ def test_create_distribution_with_web_acl():
     config["WebACLId"] = "test-web-acl"
 
     resp = client.create_distribution(DistributionConfig=config)
-    resp.should.have.key("Distribution")
+    config = resp["Distribution"]["DistributionConfig"]
 
-    distribution = resp["Distribution"]
-
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-
-    config.should.have.key("WebACLId")
-    config.should.have.key("WebACLId").equals("test-web-acl")
+    assert config["WebACLId"] == "test-web-acl"
 
 
 @mock_cloudfront
@@ -183,23 +160,12 @@ def test_create_distribution_with_field_level_encryption_and_real_time_log_confi
     config["DefaultCacheBehavior"]["FieldLevelEncryptionId"] = "K3D5EWEUDCCXON"
 
     resp = client.create_distribution(DistributionConfig=config)
-    resp.should.have.key("Distribution")
 
-    distribution = resp["Distribution"]
-
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-
-    config.should.have.key("DefaultCacheBehavior")
+    config = resp["Distribution"]["DistributionConfig"]
     default_cache = config["DefaultCacheBehavior"]
 
-    default_cache.should.have.key("FieldLevelEncryptionId")
-    default_cache.should.have.key("FieldLevelEncryptionId").equals("K3D5EWEUDCCXON")
-
-    default_cache.should.have.key("RealtimeLogConfigArn")
-    default_cache.should.have.key("RealtimeLogConfigArn").equals(
-        real_time_log_config_arn
-    )
+    assert default_cache["FieldLevelEncryptionId"] == "K3D5EWEUDCCXON"
+    assert default_cache["RealtimeLogConfigArn"] == real_time_log_config_arn
 
 
 @mock_cloudfront
@@ -215,20 +181,13 @@ def test_create_distribution_with_georestriction():
     }
 
     resp = client.create_distribution(DistributionConfig=config)
-    resp.should.have.key("Distribution")
+    config = resp["Distribution"]["DistributionConfig"]
 
-    distribution = resp["Distribution"]
-
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
-
-    config.should.have.key("Restrictions")
-    config["Restrictions"].should.have.key("GeoRestriction")
     restriction = config["Restrictions"]["GeoRestriction"]
-    restriction.should.have.key("RestrictionType").equals("whitelist")
-    restriction.should.have.key("Quantity").equals(2)
-    restriction["Items"].should.contain("US")
-    restriction["Items"].should.contain("GB")
+    assert restriction["RestrictionType"] == "whitelist"
+    assert restriction["Quantity"] == 2
+    assert "US" in restriction["Items"]
+    assert "GB" in restriction["Items"]
 
 
 @mock_cloudfront
@@ -246,19 +205,16 @@ def test_create_distribution_with_allowed_methods():
 
     dist = client.create_distribution(DistributionConfig=config)["Distribution"]
 
-    dist.should.have.key("DistributionConfig")
     cache = dist["DistributionConfig"]["DefaultCacheBehavior"]
 
-    cache.should.have.key("AllowedMethods").equals(
-        {
-            "CachedMethods": {
-                "Items": ["GET", "HEAD", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"],
-                "Quantity": 7,
-            },
-            "Items": ["GET", "HEAD", "PUT"],
-            "Quantity": 3,
-        }
-    )
+    assert cache["AllowedMethods"] == {
+        "CachedMethods": {
+            "Items": ["GET", "HEAD", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"],
+            "Quantity": 7,
+        },
+        "Items": ["GET", "HEAD", "PUT"],
+        "Quantity": 3,
+    }
 
 
 @mock_cloudfront
@@ -275,11 +231,9 @@ def test_create_distribution_with_origins():
     dist = client.create_distribution(DistributionConfig=config)["Distribution"]
 
     origin = dist["DistributionConfig"]["Origins"]["Items"][0]
-    origin.should.have.key("ConnectionAttempts").equals(1)
-    origin.should.have.key("ConnectionTimeout").equals(2)
-    origin.should.have.key("OriginShield").equals(
-        {"Enabled": True, "OriginShieldRegion": "east"}
-    )
+    assert origin["ConnectionAttempts"] == 1
+    assert origin["ConnectionTimeout"] == 2
+    assert origin["OriginShield"] == {"Enabled": True, "OriginShieldRegion": "east"}
 
 
 @mock_cloudfront
@@ -305,26 +259,23 @@ def test_create_distribution_with_additional_fields(
     config["DefaultCacheBehavior"]["MinTTL"] = 10
     config["DefaultCacheBehavior"]["SmoothStreaming"] = smooth
     config["PriceClass"] = "PriceClass_100"
+
     resp = client.create_distribution(DistributionConfig=config)
-    distribution = resp["Distribution"]
-    distribution.should.have.key("DistributionConfig")
-    config = distribution["DistributionConfig"]
+    config = resp["Distribution"]["DistributionConfig"]
+
     assert config["Aliases"] == {"Items": aliases, "Quantity": len(aliases)}
 
-    config.should.have.key("PriceClass").equals("PriceClass_100")
-    config.should.have.key("IsIPV6Enabled").equals(ipv6)
+    assert config["PriceClass"] == "PriceClass_100"
+    assert config["IsIPV6Enabled"] == ipv6
 
-    config["DefaultCacheBehavior"].should.have.key("Compress").equals(compress)
-    config["DefaultCacheBehavior"].should.have.key("MinTTL").equals(10)
-    config["DefaultCacheBehavior"].should.have.key("SmoothStreaming").equals(smooth)
+    assert config["DefaultCacheBehavior"]["Compress"] == compress
+    assert config["DefaultCacheBehavior"]["MinTTL"] == 10
+    assert config["DefaultCacheBehavior"]["SmoothStreaming"] == smooth
 
     forwarded = config["DefaultCacheBehavior"]["ForwardedValues"]
-    forwarded.should.have.key("QueryString").equals(qs)
-    forwarded["Cookies"].should.have.key("Forward").equals("whitelist")
-    forwarded["Cookies"].should.have.key("WhitelistedNames")
-    forwarded["Cookies"]["WhitelistedNames"].should.have.key("Items").equals(
-        ["x-amz-header"]
-    )
+    assert forwarded["QueryString"] == qs
+    assert forwarded["Cookies"]["Forward"] == "whitelist"
+    assert forwarded["Cookies"]["WhitelistedNames"]["Items"] == ["x-amz-header"]
 
 
 @mock_cloudfront
@@ -336,9 +287,10 @@ def test_create_distribution_returns_etag():
     dist_id = resp["Distribution"]["Id"]
 
     headers = resp["ResponseMetadata"]["HTTPHeaders"]
-    headers.should.have.key("etag").length_of(13)
-    headers.should.have.key("location").equals(
-        f"https://cloudfront.amazonaws.com/2020-05-31/distribution/{dist_id}"
+    assert len(headers["etag"]) == 13
+    assert (
+        headers["location"]
+        == f"https://cloudfront.amazonaws.com/2020-05-31/distribution/{dist_id}"
     )
 
 
@@ -355,19 +307,20 @@ def test_create_distribution_needs_unique_caller_reference():
     with pytest.raises(ClientError) as exc:
         client.create_distribution(DistributionConfig=config)
     err = exc.value.response["Error"]
-    err["Code"].should.equal("DistributionAlreadyExists")
-    err["Message"].should.equal(
-        f"The caller reference that you are using to create a distribution is associated with another distribution. Already exists: {dist1_id}"
+    assert err["Code"] == "DistributionAlreadyExists"
+    assert (
+        err["Message"]
+        == f"The caller reference that you are using to create a distribution is associated with another distribution. Already exists: {dist1_id}"
     )
 
     # Creating another distribution with a different reference
     config = scaffold.example_distribution_config(ref="ref2")
     dist2 = client.create_distribution(DistributionConfig=config)
-    dist1_id.shouldnt.equal(dist2["Distribution"]["Id"])
+    assert dist1_id != dist2["Distribution"]["Id"]
 
     resp = client.list_distributions()["DistributionList"]
-    resp.should.have.key("Quantity").equals(2)
-    resp.should.have.key("Items").length_of(2)
+    assert resp["Quantity"] == 2
+    assert len(resp["Items"]) == 2
 
 
 @mock_cloudfront
@@ -378,10 +331,10 @@ def test_get_distribution_config_with_unknown_distribution_id():
         client.get_distribution_config(Id="unknown")
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(404)
+    assert metadata["HTTPStatusCode"] == 404
     err = exc.value.response["Error"]
-    err["Code"].should.equal("NoSuchDistribution")
-    err["Message"].should.equal("The specified distribution does not exist.")
+    assert err["Code"] == "NoSuchDistribution"
+    assert err["Message"] == "The specified distribution does not exist."
 
 
 @mock_cloudfront
@@ -405,11 +358,11 @@ def test_get_distribution_config_with_mismatched_originid():
             }
         )
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(404)
+    assert metadata["HTTPStatusCode"] == 404
     err = exc.value.response["Error"]
-    err["Code"].should.equal("NoSuchOrigin")
-    err["Message"].should.equal(
-        "One or more of your origins or origin groups do not exist."
+    assert err["Code"] == "NoSuchOrigin"
+    assert (
+        err["Message"] == "One or more of your origins or origin groups do not exist."
     )
 
 
@@ -435,11 +388,11 @@ def test_create_origin_without_origin_config():
         )
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(400)
+    assert metadata["HTTPStatusCode"] == 400
     err = exc.value.response["Error"]
-    err["Code"].should.equal("InvalidOrigin")
-    err["Message"].should.equal(
-        "The specified origin server does not exist or is not valid."
+    assert err["Code"] == "InvalidOrigin"
+    assert (
+        err["Message"] == "The specified origin server does not exist or is not valid."
     )
 
 
@@ -471,11 +424,12 @@ def test_create_distribution_with_invalid_s3_bucket():
         )
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(400)
+    assert metadata["HTTPStatusCode"] == 400
     err = exc.value.response["Error"]
-    err["Code"].should.equal("InvalidArgument")
-    err["Message"].should.equal(
-        "The parameter Origin DomainName does not refer to a valid S3 bucket."
+    assert err["Code"] == "InvalidArgument"
+    assert (
+        err["Message"]
+        == "The parameter Origin DomainName does not refer to a valid S3 bucket."
     )
 
 
@@ -487,33 +441,28 @@ def test_create_distribution_custom_config():
     dist = client.create_distribution(DistributionConfig=config)["Distribution"][
         "DistributionConfig"
     ]
-    dist.should.have.key("Origins")
-    dist["Origins"].should.have.key("Items").length_of(1)
-    origin = dist["Origins"]["Items"][0]
+    assert len(dist["Origins"]["Items"]) == 1
+    custom_config = dist["Origins"]["Items"][0]["CustomOriginConfig"]
 
-    origin.should.have.key("CustomOriginConfig")
-    custom_config = origin["CustomOriginConfig"]
-
-    custom_config.should.have.key("HTTPPort").equals(80)
-    custom_config.should.have.key("HTTPSPort").equals(443)
-    custom_config.should.have.key("OriginProtocolPolicy").equals("http-only")
-    custom_config.should.have.key("OriginSslProtocols").equals(
-        {"Items": ["TLSv1", "SSLv3"], "Quantity": 2}
-    )
+    assert custom_config["HTTPPort"] == 80
+    assert custom_config["HTTPSPort"] == 443
+    assert custom_config["OriginProtocolPolicy"] == "http-only"
+    assert custom_config["OriginSslProtocols"] == {
+        "Items": ["TLSv1", "SSLv3"],
+        "Quantity": 2,
+    }
 
 
 @mock_cloudfront
 def test_list_distributions_without_any():
     client = boto3.client("cloudfront", region_name="us-east-1")
 
-    resp = client.list_distributions()
-    resp.should.have.key("DistributionList")
-    dlist = resp["DistributionList"]
-    dlist.should.have.key("Marker").equals("")
-    dlist.should.have.key("MaxItems").equals(100)
-    dlist.should.have.key("IsTruncated").equals(False)
-    dlist.should.have.key("Quantity").equals(0)
-    dlist.shouldnt.have.key("Items")
+    dlist = client.list_distributions()["DistributionList"]
+    assert dlist["Marker"] == ""
+    assert dlist["MaxItems"] == 100
+    assert dlist["IsTruncated"] is False
+    assert dlist["Quantity"] == 0
+    assert "Items" not in dlist
 
 
 @mock_cloudfront
@@ -525,21 +474,19 @@ def test_list_distributions():
     config = scaffold.example_distribution_config(ref="ref2")
     dist2 = client.create_distribution(DistributionConfig=config)["Distribution"]
 
-    resp = client.list_distributions()
-    resp.should.have.key("DistributionList")
-    dlist = resp["DistributionList"]
-    dlist.should.have.key("Quantity").equals(2)
-    dlist.should.have.key("Items").length_of(2)
+    dlist = client.list_distributions()["DistributionList"]
+    assert dlist["Quantity"] == 2
+    assert len(dlist["Items"]) == 2
 
     item1 = dlist["Items"][0]
-    item1.should.have.key("Id").equals(dist1["Id"])
-    item1.should.have.key("ARN")
-    item1.should.have.key("Status").equals("Deployed")
+    assert item1["Id"] == dist1["Id"]
+    assert "ARN" in item1
+    assert item1["Status"] == "Deployed"
 
     item2 = dlist["Items"][1]
-    item2.should.have.key("Id").equals(dist2["Id"])
-    item2.should.have.key("ARN")
-    item2.should.have.key("Status").equals("Deployed")
+    assert item2["Id"] == dist2["Id"]
+    assert "ARN" in item2
+    assert item2["Status"] == "Deployed"
 
 
 @mock_cloudfront
@@ -554,15 +501,14 @@ def test_get_distribution():
     resp = client.get_distribution(Id=dist_id)
 
     headers = resp["ResponseMetadata"]["HTTPHeaders"]
-    headers.should.have.key("etag").length_of(13)
+    assert len(headers["etag"]) == 13
     dist = resp["Distribution"]
-    dist.should.have.key("Id").equals(dist_id)
-    dist.should.have.key("Status").equals("Deployed")
-    dist.should.have.key("DomainName").equals(dist["DomainName"])
+    assert dist["Id"] == dist_id
+    assert dist["Status"] == "Deployed"
+    assert dist["DomainName"] == dist["DomainName"]
 
-    dist.should.have.key("DistributionConfig")
     config = dist["DistributionConfig"]
-    config.should.have.key("CallerReference").should.equal("ref")
+    assert config["CallerReference"] == "ref"
 
 
 @mock_cloudfront
@@ -574,10 +520,10 @@ def test_get_unknown_distribution():
         client.get_distribution(Id="unknown")
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(404)
+    assert metadata["HTTPStatusCode"] == 404
     err = exc.value.response["Error"]
-    err["Code"].should.equal("NoSuchDistribution")
-    err["Message"].should.equal("The specified distribution does not exist.")
+    assert err["Code"] == "NoSuchDistribution"
+    assert err["Message"] == "The specified distribution does not exist."
 
 
 @mock_cloudfront
@@ -588,10 +534,10 @@ def test_delete_unknown_distribution():
         client.delete_distribution(Id="unknown", IfMatch="..")
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(404)
+    assert metadata["HTTPStatusCode"] == 404
     err = exc.value.response["Error"]
-    err["Code"].should.equal("NoSuchDistribution")
-    err["Message"].should.equal("The specified distribution does not exist.")
+    assert err["Code"] == "NoSuchDistribution"
+    assert err["Message"] == "The specified distribution does not exist."
 
 
 @mock_cloudfront
@@ -603,11 +549,12 @@ def test_delete_distribution_without_ifmatch():
         client.delete_distribution(Id="...")
 
     metadata = exc.value.response["ResponseMetadata"]
-    metadata["HTTPStatusCode"].should.equal(400)
+    assert metadata["HTTPStatusCode"] == 400
     err = exc.value.response["Error"]
-    err["Code"].should.equal("InvalidIfMatchVersion")
-    err["Message"].should.equal(
-        "The If-Match version is missing or not valid for the resource."
+    assert err["Code"] == "InvalidIfMatchVersion"
+    assert (
+        err["Message"]
+        == "The If-Match version is missing or not valid for the resource."
     )
 
 
@@ -629,7 +576,7 @@ def test_delete_distribution_random_etag():
     with pytest.raises(ClientError) as exc:
         client.get_distribution(Id=dist_id)
     err = exc.value.response["Error"]
-    err["Code"].should.equal("NoSuchDistribution")
+    assert err["Code"] == "NoSuchDistribution"
 
 
 @mock_cloudfront
@@ -641,97 +588,79 @@ def test_get_distribution_config():
     dist = client.create_distribution(DistributionConfig=config)
     dist_id = dist["Distribution"]["Id"]
 
-    resp = client.get_distribution_config(Id=dist_id)
-    resp.should.have.key("DistributionConfig")
+    config = client.get_distribution_config(Id=dist_id)["DistributionConfig"]
+    assert config["CallerReference"] == "ref"
 
-    config = resp["DistributionConfig"]
-    config.should.have.key("CallerReference").should.equal("ref")
+    assert config["Aliases"]["Quantity"] == 0
 
-    config.should.have.key("Aliases")
-    config["Aliases"].should.have.key("Quantity").equals(0)
-
-    config.should.have.key("Origins")
     origins = config["Origins"]
-    origins.should.have.key("Quantity").equals(1)
-    origins.should.have.key("Items").length_of(1)
+    assert origins["Quantity"] == 1
+    assert len(origins["Items"]) == 1
     origin = origins["Items"][0]
-    origin.should.have.key("Id").equals("origin1")
-    origin.should.have.key("DomainName").equals("asdf.s3.us-east-1.amazonaws.com")
-    origin.should.have.key("OriginPath").equals("/example")
+    assert origin["Id"] == "origin1"
+    assert origin["DomainName"] == "asdf.s3.us-east-1.amazonaws.com"
+    assert origin["OriginPath"] == "/example"
 
-    origin.should.have.key("CustomHeaders")
-    origin["CustomHeaders"].should.have.key("Quantity").equals(0)
+    assert origin["CustomHeaders"]["Quantity"] == 0
 
-    origin.should.have.key("ConnectionAttempts").equals(3)
-    origin.should.have.key("ConnectionTimeout").equals(10)
-    origin.should.have.key("OriginShield").equals({"Enabled": False})
+    assert origin["ConnectionAttempts"] == 3
+    assert origin["ConnectionTimeout"] == 10
+    assert origin["OriginShield"] == {"Enabled": False}
 
-    config.should.have.key("OriginGroups").equals({"Quantity": 0})
+    assert config["OriginGroups"] == {"Quantity": 0}
 
-    config.should.have.key("DefaultCacheBehavior")
     default_cache = config["DefaultCacheBehavior"]
-    default_cache.should.have.key("TargetOriginId").should.equal("origin1")
-    default_cache.should.have.key("TrustedSigners")
+    assert default_cache["TargetOriginId"] == "origin1"
 
     signers = default_cache["TrustedSigners"]
-    signers.should.have.key("Enabled").equals(False)
-    signers.should.have.key("Quantity").equals(0)
+    assert signers["Enabled"] is False
+    assert signers["Quantity"] == 0
 
-    default_cache.should.have.key("TrustedKeyGroups")
     groups = default_cache["TrustedKeyGroups"]
-    groups.should.have.key("Enabled").equals(False)
-    groups.should.have.key("Quantity").equals(0)
+    assert groups["Enabled"] is False
+    assert groups["Quantity"] == 0
 
-    default_cache.should.have.key("ViewerProtocolPolicy").equals("allow-all")
+    assert default_cache["ViewerProtocolPolicy"] == "allow-all"
 
-    default_cache.should.have.key("AllowedMethods")
     methods = default_cache["AllowedMethods"]
-    methods.should.have.key("Quantity").equals(2)
-    methods.should.have.key("Items")
-    set(methods["Items"]).should.equal({"HEAD", "GET"})
+    assert methods["Quantity"] == 2
+    assert set(methods["Items"]) == {"HEAD", "GET"}
 
-    methods.should.have.key("CachedMethods")
     cached_methods = methods["CachedMethods"]
-    cached_methods.should.have.key("Quantity").equals(2)
-    set(cached_methods["Items"]).should.equal({"HEAD", "GET"})
+    assert cached_methods["Quantity"] == 2
+    assert set(cached_methods["Items"]) == {"HEAD", "GET"}
 
-    default_cache.should.have.key("SmoothStreaming").equals(False)
-    default_cache.should.have.key("Compress").equals(True)
-    default_cache.should.have.key("LambdaFunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FunctionAssociations").equals({"Quantity": 0})
-    default_cache.should.have.key("FieldLevelEncryptionId").equals("")
-    default_cache.should.have.key("CachePolicyId")
+    assert default_cache["SmoothStreaming"] is False
+    assert default_cache["Compress"] is True
+    assert default_cache["LambdaFunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FunctionAssociations"] == {"Quantity": 0}
+    assert default_cache["FieldLevelEncryptionId"] == ""
+    assert "CachePolicyId" in default_cache
 
-    config.should.have.key("CacheBehaviors").equals({"Quantity": 0})
-    config.should.have.key("CustomErrorResponses").equals({"Quantity": 0})
-    config.should.have.key("Comment").equals(
-        "an optional comment that's not actually optional"
-    )
+    assert config["CacheBehaviors"] == {"Quantity": 0}
+    assert config["CustomErrorResponses"] == {"Quantity": 0}
+    assert config["Comment"] == "an optional comment that's not actually optional"
 
-    config.should.have.key("Logging")
     logging = config["Logging"]
-    logging.should.have.key("Enabled").equals(False)
-    logging.should.have.key("IncludeCookies").equals(False)
-    logging.should.have.key("Bucket").equals("")
-    logging.should.have.key("Prefix").equals("")
+    assert logging["Enabled"] is False
+    assert logging["IncludeCookies"] is False
+    assert logging["Bucket"] == ""
+    assert logging["Prefix"] == ""
 
-    config.should.have.key("PriceClass").equals("PriceClass_All")
-    config.should.have.key("Enabled").equals(False)
-    config.should.have.key("WebACLId")
-    config.should.have.key("HttpVersion").equals("http2")
-    config.should.have.key("IsIPV6Enabled").equals(True)
+    assert config["PriceClass"] == "PriceClass_All"
+    assert config["Enabled"] is False
+    assert "WebACLId" in config
+    assert config["HttpVersion"] == "http2"
+    assert config["IsIPV6Enabled"] is True
 
-    config.should.have.key("ViewerCertificate")
     cert = config["ViewerCertificate"]
-    cert.should.have.key("CloudFrontDefaultCertificate").equals(True)
-    cert.should.have.key("MinimumProtocolVersion").equals("TLSv1")
-    cert.should.have.key("CertificateSource").equals("cloudfront")
+    assert cert["CloudFrontDefaultCertificate"] is True
+    assert cert["MinimumProtocolVersion"] == "TLSv1"
+    assert cert["CertificateSource"] == "cloudfront"
 
-    config.should.have.key("Restrictions")
-    config["Restrictions"].should.have.key("GeoRestriction")
-    restriction = config["Restrictions"]["GeoRestriction"]
-    restriction.should.have.key("RestrictionType").equals("none")
-    restriction.should.have.key("Quantity").equals(0)
+    assert config["Restrictions"]["GeoRestriction"] == {
+        "RestrictionType": "none",
+        "Quantity": 0,
+    }
 
-    config.should.have.key("WebACLId")
-    config.should.have.key("WebACLId").equals("")
+    assert config["WebACLId"] == ""
diff --git a/tests/test_cloudfront/test_cloudfront_invalidation.py b/tests/test_cloudfront/test_cloudfront_invalidation.py
index 3604d71e9..7dd85f53c 100644
--- a/tests/test_cloudfront/test_cloudfront_invalidation.py
+++ b/tests/test_cloudfront/test_cloudfront_invalidation.py
@@ -1,7 +1,6 @@
 import boto3
 from moto import mock_cloudfront
 from . import cloudfront_test_scaffolding as scaffold
-import sure  # noqa # pylint: disable=unused-import
 
 
 @mock_cloudfront
@@ -19,18 +18,16 @@ def test_create_invalidation_with_single_path():
         },
     )
 
-    resp.should.have.key("Location")
-    resp.should.have.key("Invalidation")
+    assert "Location" in resp
+    assert "Invalidation" in resp
 
-    resp["Invalidation"].should.have.key("Id")
-    resp["Invalidation"].should.have.key("Status").equals("COMPLETED")
-    resp["Invalidation"].should.have.key("CreateTime")
-    resp["Invalidation"].should.have.key("InvalidationBatch").equals(
-        {
-            "Paths": {"Quantity": 1, "Items": ["/path1"]},
-            "CallerReference": "ref2",
-        }
-    )
+    assert "Id" in resp["Invalidation"]
+    assert resp["Invalidation"]["Status"] == "COMPLETED"
+    assert "CreateTime" in resp["Invalidation"]
+    assert resp["Invalidation"]["InvalidationBatch"] == {
+        "Paths": {"Quantity": 1, "Items": ["/path1"]},
+        "CallerReference": "ref2",
+    }
 
 
 @mock_cloudfront
@@ -48,18 +45,16 @@ def test_create_invalidation_with_multiple_paths():
         },
     )
 
-    resp.should.have.key("Location")
-    resp.should.have.key("Invalidation")
+    assert "Location" in resp
+    assert "Invalidation" in resp
 
-    resp["Invalidation"].should.have.key("Id")
-    resp["Invalidation"].should.have.key("Status").equals("COMPLETED")
-    resp["Invalidation"].should.have.key("CreateTime")
-    resp["Invalidation"].should.have.key("InvalidationBatch").equals(
-        {
-            "Paths": {"Quantity": 2, "Items": ["/path1", "/path2"]},
-            "CallerReference": "ref2",
-        }
-    )
+    assert "Id" in resp["Invalidation"]
+    assert resp["Invalidation"]["Status"] == "COMPLETED"
+    assert "CreateTime" in resp["Invalidation"]
+    assert resp["Invalidation"]["InvalidationBatch"] == {
+        "Paths": {"Quantity": 2, "Items": ["/path1", "/path2"]},
+        "CallerReference": "ref2",
+    }
 
 
 @mock_cloudfront
@@ -77,32 +72,26 @@ def test_list_invalidations():
     )
     invalidation_id = resp["Invalidation"]["Id"]
 
-    resp = client.list_invalidations(
-        DistributionId=dist_id,
-    )
+    resp = client.list_invalidations(DistributionId=dist_id)
 
-    resp.should.have.key("InvalidationList")
-    resp["InvalidationList"].shouldnt.have.key("NextMarker")
-    resp["InvalidationList"].should.have.key("MaxItems").equal(100)
-    resp["InvalidationList"].should.have.key("IsTruncated").equal(False)
-    resp["InvalidationList"].should.have.key("Quantity").equal(1)
-    resp["InvalidationList"].should.have.key("Items").length_of(1)
-    resp["InvalidationList"]["Items"][0].should.have.key("Id").equal(invalidation_id)
-    resp["InvalidationList"]["Items"][0].should.have.key("CreateTime")
-    resp["InvalidationList"]["Items"][0].should.have.key("Status").equal("COMPLETED")
+    assert "NextMarker" not in resp["InvalidationList"]
+    assert resp["InvalidationList"]["MaxItems"] == 100
+    assert resp["InvalidationList"]["IsTruncated"] is False
+    assert resp["InvalidationList"]["Quantity"] == 1
+    assert len(resp["InvalidationList"]["Items"]) == 1
+    assert resp["InvalidationList"]["Items"][0]["Id"] == invalidation_id
+    assert "CreateTime" in resp["InvalidationList"]["Items"][0]
+    assert resp["InvalidationList"]["Items"][0]["Status"] == "COMPLETED"
 
 
 @mock_cloudfront
 def test_list_invalidations__no_entries():
     client = boto3.client("cloudfront", region_name="us-west-1")
 
-    resp = client.list_invalidations(
-        DistributionId="SPAM",
-    )
+    resp = client.list_invalidations(DistributionId="SPAM")
 
-    resp.should.have.key("InvalidationList")
-    resp["InvalidationList"].shouldnt.have.key("NextMarker")
-    resp["InvalidationList"].should.have.key("MaxItems").equal(100)
-    resp["InvalidationList"].should.have.key("IsTruncated").equal(False)
-    resp["InvalidationList"].should.have.key("Quantity").equal(0)
-    resp["InvalidationList"].shouldnt.have.key("Items")
+    assert "NextMarker" not in resp["InvalidationList"]
+    assert resp["InvalidationList"]["MaxItems"] == 100
+    assert resp["InvalidationList"]["IsTruncated"] is False
+    assert resp["InvalidationList"]["Quantity"] == 0
+    assert "Items" not in resp["InvalidationList"]