org.springframework.restdocs.operation.preprocess.PrettyPrintingContentModifierTests.java Source code

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Here is the source code for org.springframework.restdocs.operation.preprocess.PrettyPrintingContentModifierTests.java

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/*
 * Copyright 2014-2016 the original author or authors.
 *
 * 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 org.springframework.restdocs.operation.preprocess;

import java.util.HashMap;
import java.util.Map;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.junit.Rule;
import org.junit.Test;

import org.springframework.restdocs.test.OutputCapture;

import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.Matchers.isEmptyString;
import static org.junit.Assert.assertThat;

/**
 * Tests for {@link PrettyPrintingContentModifier}.
 *
 * @author Andy Wilkinson
 *
 */
public class PrettyPrintingContentModifierTests {

    @Rule
    public OutputCapture outputCapture = new OutputCapture();

    @Test
    public void prettyPrintJson() throws Exception {
        assertThat(new PrettyPrintingContentModifier().modifyContent("{\"a\":5}".getBytes(), null),
                equalTo(String.format("{%n  \"a\" : 5%n}").getBytes()));
    }

    @Test
    public void prettyPrintXml() throws Exception {
        assertThat(
                new PrettyPrintingContentModifier()
                        .modifyContent("<one a=\"alpha\"><two b=\"bravo\"/></one>".getBytes(), null),
                equalTo(String.format("<?xml version=\"1.0\" encoding=\"UTF-8\"?>%n"
                        + "<one a=\"alpha\">%n    <two b=\"bravo\"/>%n</one>%n").getBytes()));
    }

    @Test
    public void empytContentIsHandledGracefully() throws Exception {
        assertThat(new PrettyPrintingContentModifier().modifyContent("".getBytes(), null), equalTo("".getBytes()));
    }

    @Test
    public void nonJsonAndNonXmlContentIsHandledGracefully() throws Exception {
        String content = "abcdefg";
        this.outputCapture.expect(isEmptyString());
        assertThat(new PrettyPrintingContentModifier().modifyContent(content.getBytes(), null),
                equalTo(content.getBytes()));

    }

    @Test
    public void encodingIsPreserved() throws Exception {
        Map<String, String> input = new HashMap<>();
        input.put("japanese", "\u30b3\u30f3\u30c6\u30f3\u30c4");
        ObjectMapper objectMapper = new ObjectMapper();
        @SuppressWarnings("unchecked")
        Map<String, String> output = objectMapper.readValue(
                new PrettyPrintingContentModifier().modifyContent(objectMapper.writeValueAsBytes(input), null),
                Map.class);
        assertThat(output, is(equalTo(input)));
    }
}