uk.gov.gchq.koryphe.impl.function.ToLowerCaseTest.java Source code

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Here is the source code for uk.gov.gchq.koryphe.impl.function.ToLowerCaseTest.java

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/*
 * Copyright 2018 Crown Copyright
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package uk.gov.gchq.koryphe.impl.function;

import org.apache.commons.lang3.StringUtils;
import org.junit.Test;

import uk.gov.gchq.koryphe.function.FunctionTest;
import uk.gov.gchq.koryphe.util.JsonSerialiser;

import java.io.IOException;
import java.util.function.Function;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

public class ToLowerCaseTest extends FunctionTest {
    private static final String TEST_STRING = "TEST STRING";

    @Test
    public void shouldLowerCaseInput() {
        // Given
        final ToLowerCase function = new ToLowerCase();

        // When
        Object output = function.apply(TEST_STRING);

        assertEquals(StringUtils.lowerCase(TEST_STRING), output);
    }

    @Override
    protected Function getInstance() {
        return new ToLowerCase();
    }

    @Override
    protected Class<? extends Function> getFunctionClass() {
        return ToLowerCase.class;
    }

    @Override
    public void shouldJsonSerialiseAndDeserialise() throws IOException {
        // Given
        final ToLowerCase function = new ToLowerCase();

        // When
        final String json = JsonSerialiser.serialise(function);

        // Then
        JsonSerialiser.assertEquals(
                String.format("{%n" + "  \"class\" : \"uk.gov.gchq.koryphe.impl.function.ToLowerCase\"%n" + "}"),
                json);

        // When 2
        final ToLowerCase deserialisedMethod = JsonSerialiser.deserialise(json, ToLowerCase.class);

        // Then 2
        assertNotNull(deserialisedMethod);
    }
}