chain.add((text, field, langs) -> text.replace(" ", "_"));

        String result = chain.normalize("  TEST CASE  ", "field");

        assertEquals("test_case", result);
    }

    @Test
    public void test_nullInput() throws Exception {
        NormalizerChain chain = new NormalizerChain();
        chain.add(new FullWidthToHalfWidthAlphabetNormalizer());

	for i, testCase := range testCases {
		targetID := &TargetID{}
		err := targetID.UnmarshalJSON(testCase.data)
		expectErr := (err != nil)

		if expectErr != testCase.expectErr {
			t.Fatalf("test %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
		}

		if !testCase.expectErr {
			if *targetID != *testCase.expectedTargetID {

	for i, testCase := range testCases {
		targetID := &TargetID{}
		err := targetID.UnmarshalJSON(testCase.data)
		expectErr := (err != nil)

		if expectErr != testCase.expectErr {
			t.Fatalf("test %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
		}

		if !testCase.expectErr {
			if *targetID != *testCase.expectedTargetID {

	}

	for i, testCase := range testCases {
		cred, err := CreateCredentials(testCase.accessKey, testCase.secretKey)

		if err != nil {
			if testCase.expectedErr == nil {
				t.Fatalf("test %v: error: expected = <nil>, got = %v", i+1, err)
			}
			if testCase.expectedErr.Error() != err.Error() {
				t.Fatalf("test %v: error: expected = %v, got = %v", i+1, testCase.expectedErr, err)
			}
		} else {

		{[]byte(`"OFF"`), BoolFlag(false), false},
	}

	for _, testCase := range testCases {
		var flag BoolFlag
		err := (&flag).UnmarshalJSON(testCase.data)
		if !testCase.expectedErr && err != nil {
			t.Fatalf("error: expected = <nil>, got = %v", err)
		}
		if testCase.expectedErr && err == nil {
			t.Fatalf("error: expected error, got = <nil>")
		}
		if err == nil && testCase.expectedResult != flag {

		}
		if startAfter != testCase.startAfter {
			t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.startAfter, startAfter)
		}
		if delimiter != testCase.delimiter {
			t.Errorf("Test %d: Expected %s, got %s", i+1, testCase.delimiter, delimiter)
		}
		if fetchOwner != testCase.fetchOwner {
			t.Errorf("Test %d: Expected %t, got %t", i+1, testCase.fetchOwner, fetchOwner)
		}

			gotIndexes, err := getSetIndexes(testCase.args, testCase.totalSizes, testCase.envOverride, argPatterns)
			if err != nil && testCase.success {
				t.Errorf("Expected success but failed instead %s", err)
			}
			if err == nil && !testCase.success {
				t.Errorf("Expected failure but passed instead")
			}
			if !reflect.DeepEqual(testCase.indexes, gotIndexes) {
				t.Errorf("Expected %v, got %v", testCase.indexes, gotIndexes)
			}
		})

			}
			tmpfile.WriteString(testCase.content)
			tmpfile.Sync()
			tmpfile.Close()

			value, err := readFromSecret(tmpfile.Name())
			if err != nil && !testCase.expectedErr {
				t.Error(err)
			}
			if err == nil && testCase.expectedErr {
				t.Error(errors.New("expected error, found success"))
			}
			if value != testCase.expectedValue {
				t.Errorf("Expected %s, got %s", testCase.expectedValue, value)
			}
		})

			expectedErrCode:  ErrNone,
		},
	}
	for i, testCase := range testCases {
		actualSignStr, actualErrCode := parseSignature(testCase.inputSignElement)
		if testCase.expectedErrCode != actualErrCode {
			t.Fatalf("Test %d: Expected the APIErrCode to be %d, got %d", i+1, testCase.expectedErrCode, actualErrCode)
		}
		if actualErrCode == ErrNone {
			if testCase.expectedSignStr != actualSignStr {

			success:    false,
		},
	}

	for i, testCase := range testCases {
		t.Run(fmt.Sprintf("case-%d", i+1), func(t *testing.T) {
			_, err := NewReader(t.Context(), testCase.src, testCase.size, testCase.md5hex, testCase.sha256hex, testCase.actualSize)
			if err != nil && testCase.success {
				t.Errorf("Test %q: Expected success, but got error %s instead", testCase.desc, err)
			}
			if err == nil && !testCase.success {