secretKey  string
		// expected output.
		expectedContent    []byte // expected response body.
		expectedRespStatus int    // expected response status body.
	}{
		// Test case - 1.
		// Fetching the entire object and validating its contents.
		{
			bucketName: bucketName,
			objectName: objectName,
			byteRange:  "",
			accessKey:  credentials.AccessKey,
			secretKey:  credentials.SecretKey,

		}

		if err != nil {
			return written, err
		}

		if nw != int64(len(buf)) {
			return written, io.ErrShortWrite
		}

		if totalSize > 0 && written == totalSize {
			// we have written the entire stream, return right here.
			return written, nil
		}

		if eof {
			// We reached EOF prematurely but we did not write everything
			// that we promised that we would write.

passing a pointer to a field in a struct, the Go memory in question is
the memory occupied by the field, not the entire struct. When passing a
pointer to an element in an array or slice, the Go memory in question is
the entire array or the entire backing array of the slice.

C code may keep a copy of a Go pointer only as long as the memory it
points to is pinned.

		}
		t.FailNow()
	}
	info, err := dirEntries[0].Info()
	if err != nil {
		t.Fatalf("Error reading info entry: %v", err)
	}
	if name := info.Name(); name != "test.txt" {
		t.Errorf("Inconsistent name in info entry: %v", name)
	}
}

func TestUnderSize(t *testing.T) {
	z, err := OpenReader("testdata/readme.zip")
	if err != nil {
		t.Fatal(err)
	}