fix disposed memory streams

Author: mvdgun

Tests/src/FileSystem.Adapters.AmazonS3/AmazonS3AdapterTest.cs

@@ -404,31 +404,14 @@ public async Task Test_Read_File_Async()
             var amazonS3Adapter = new AmazonS3Adapter("prefix-1", "root-path-1", amazonS3Client, "bucket-1");
             var fileSystem = new SharpGrip.FileSystem.FileSystem(new List<IAdapter> {amazonS3Adapter});
 
-            var getObjectResponse1 = Substitute.For<GetObjectResponse>();
-            var getObjectResponse2 = Substitute.For<GetObjectResponse>();
-            var getObjectResponse3 = Substitute.For<GetObjectResponse>();
-
-            getObjectResponse1.Key = "test1.txt";
-            getObjectResponse1.ContentLength = 1;
-            getObjectResponse1.LastModified = new DateTime(1970, 1, 1);
-
-            getObjectResponse2.Key = "test1.txt";
-            getObjectResponse2.ContentLength = 1;
-            getObjectResponse2.LastModified = new DateTime(1970, 1, 1);
-
-            getObjectResponse3.Key = "test1.txt";
-            getObjectResponse3.ContentLength = 1;
-            getObjectResponse3.LastModified = new DateTime(1970, 1, 1);
-            getObjectResponse3.ResponseStream = new MemoryStream("test1"u8.ToArray());
-
-            amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test1.txt").Returns(getObjectResponse1, getObjectResponse2, getObjectResponse3);
+            amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test1.txt").Returns(GetObjectResponse("test1.txt"), GetObjectResponse("test1.txt"), GetObjectResponse("test1.txt"));
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test2.txt").ThrowsAsync(noSuchKeyException);
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test3.txt").ThrowsAsync(invalidAccessKeyIdException);
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test4.txt").ThrowsAsync(invalidSecurityException);
 
             var fileContents = await fileSystem.ReadFileAsync("prefix-1://test1.txt");
 
-            Assert.Equal("test1", Encoding.UTF8.GetString(fileContents));
+            Assert.Equal("test1.txt", Encoding.UTF8.GetString(fileContents));
             await Assert.ThrowsAsync<FileNotFoundException>(() => fileSystem.ReadFileAsync("prefix-1://test2.txt"));
             await Assert.ThrowsAsync<ConnectionException>(() => fileSystem.ReadFileAsync("prefix-1://test3.txt"));
             await Assert.ThrowsAsync<ConnectionException>(() => fileSystem.ReadFileAsync("prefix-1://test4.txt"));
@@ -458,14 +441,14 @@ public async Task Test_Read_Text_File_Async()
             getObjectResponse3.LastModified = new DateTime(1970, 1, 1);
             getObjectResponse3.ResponseStream = new MemoryStream("test1"u8.ToArray());
 
-            amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test1.txt").Returns(getObjectResponse1, getObjectResponse2, getObjectResponse3);
+            amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test1.txt").Returns(GetObjectResponse("test1.txt"), GetObjectResponse("test1.txt"), GetObjectResponse("test1.txt"));
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test2.txt").ThrowsAsync(noSuchKeyException);
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test3.txt").ThrowsAsync(invalidAccessKeyIdException);
             amazonS3Client.GetObjectAsync("bucket-1", "root-path-1/test4.txt").ThrowsAsync(invalidSecurityException);
 
             var fileContents = await fileSystem.ReadTextFileAsync("prefix-1://test1.txt");
 
-            Assert.Equal("test1", fileContents);
+            Assert.Equal("test1.txt", fileContents);
             await Assert.ThrowsAsync<FileNotFoundException>(() => fileSystem.ReadFileAsync("prefix-1://test2.txt"));
             await Assert.ThrowsAsync<ConnectionException>(() => fileSystem.ReadFileAsync("prefix-1://test3.txt"));
             await Assert.ThrowsAsync<ConnectionException>(() => fileSystem.ReadFileAsync("prefix-1://test4.txt"));