metadata := make(map[string]string, len(test.Header))
		for k := range test.Header {
			metadata[k] = "" // set metadata key - we don't care about the value
		}

		RemoveSensitiveHeaders(test.Header)
		if !isEqual(test.ExpectedHeader, test.Header) {
			t.Errorf("Test %d: filtered headers do not match expected headers - got: %v , want: %v", i, test.Header, test.ExpectedHeader)
		}