Port test suite from nose to pytest.

This just eliminates all errors on the tests collection. Elimination of
failures is left to the next commit.

tests/test_secretsmanager/test_list_secrets.py

@@ -6,12 +6,7 @@ import boto3
 from moto import mock_secretsmanager
 from botocore.exceptions import ClientError
 import sure  # noqa
-from nose.tools import assert_raises
-
-try:
-    from nose.tools import assert_items_equal
-except ImportError:
-    from nose.tools import assert_count_equal as assert_items_equal
+import pytest
 
 
 def boto_client():
@@ -24,7 +19,7 @@ def test_empty():
 
     secrets = conn.list_secrets()
 
-    assert_items_equal(secrets["SecretList"], [])
+    assert secrets["SecretList"] == []
 
 
 @mock_secretsmanager
@@ -60,7 +55,7 @@ def test_with_name_filter():
     secrets = conn.list_secrets(Filters=[{"Key": "name", "Values": ["foo"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -75,7 +70,7 @@ def test_with_tag_key_filter():
     secrets = conn.list_secrets(Filters=[{"Key": "tag-key", "Values": ["baz"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -90,7 +85,7 @@ def test_with_tag_value_filter():
     secrets = conn.list_secrets(Filters=[{"Key": "tag-value", "Values": ["baz"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -103,7 +98,7 @@ def test_with_description_filter():
     secrets = conn.list_secrets(Filters=[{"Key": "description", "Values": ["baz"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -128,14 +123,14 @@ def test_with_all_filter():
     secrets = conn.list_secrets(Filters=[{"Key": "all", "Values": ["foo"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo", "bar", "baz", "qux", "multi"])
+    assert secret_names == ["foo", "bar", "baz", "qux", "multi"]
 
 
 @mock_secretsmanager
 def test_with_no_filter_key():
     conn = boto_client()
 
-    with assert_raises(ClientError) as ire:
+    with pytest.raises(ClientError) as ire:
         conn.list_secrets(Filters=[{"Values": ["foo"]}])
 
     ire.exception.response["Error"]["Code"].should.equal("InvalidParameterException")
@@ -148,7 +143,7 @@ def test_with_no_filter_values():
 
     conn.create_secret(Name="foo", SecretString="secret", Description="hello")
 
-    with assert_raises(ClientError) as ire:
+    with pytest.raises(ClientError) as ire:
         conn.list_secrets(Filters=[{"Key": "description"}])
 
     ire.exception.response["Error"]["Code"].should.equal("InvalidParameterException")
@@ -161,7 +156,7 @@ def test_with_no_filter_values():
 def test_with_invalid_filter_key():
     conn = boto_client()
 
-    with assert_raises(ClientError) as ire:
+    with pytest.raises(ClientError) as ire:
         conn.list_secrets(Filters=[{"Key": "invalid", "Values": ["foo"]}])
 
     ire.exception.response["Error"]["Code"].should.equal("ValidationException")
@@ -190,7 +185,7 @@ def test_with_duplicate_filter_keys():
     )
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -220,7 +215,7 @@ def test_with_multiple_filters():
     )
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo"])
+    assert secret_names == ["foo"]
 
 
 @mock_secretsmanager
@@ -234,7 +229,7 @@ def test_with_filter_with_multiple_values():
     secrets = conn.list_secrets(Filters=[{"Key": "name", "Values": ["foo", "bar"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo", "bar"])
+    assert secret_names == ["foo", "bar"]
 
 
 @mock_secretsmanager
@@ -250,4 +245,4 @@ def test_with_filter_with_value_with_multiple_words():
     secrets = conn.list_secrets(Filters=[{"Key": "description", "Values": ["one two"]}])
 
     secret_names = list(map(lambda s: s["Name"], secrets["SecretList"]))
-    assert_items_equal(secret_names, ["foo", "bar"])
+    assert secret_names == ["foo", "bar"]