com.github.restdriver.matchers.WithValueAtTest.java Source code

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Here is the source code for com.github.restdriver.matchers.WithValueAtTest.java

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/**
 * Copyright  2010-2011 Nokia
 *
 * 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 com.github.restdriver.matchers;

import static org.hamcrest.MatcherAssert.*;
import static org.hamcrest.Matchers.*;

import org.hamcrest.Description;
import org.hamcrest.StringDescription;
import org.junit.Before;
import org.junit.Test;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.TextNode;

public class WithValueAtTest {

    private static final ObjectMapper MAPPER = new ObjectMapper();

    private WithValueAt matcher;

    @Before
    public void before() {
        matcher = new WithValueAt(1, is("bar"));
    }

    @Test
    public void matcherDescribesItselfCorrectly() {
        Description description = new StringDescription();
        matcher.describeTo(description);

        assertThat(description.toString(), is("A JSON array with value at 1 which matches: is \"bar\""));
    }

    @Test
    public void matcherShouldFailWhenAskedToMatchNonArrayNode() {
        assertThat(matcher.matches(new TextNode("bar")), is(false));
    }

    @Test
    public void matcherShouldFailWhenGivenEmptyArrayNode() {
        assertThat(matcher.matches(array()), is(false));
    }

    @Test
    public void matcherShouldFailWhenRequiredElementDoesntMatch() {
        assertThat(matcher.matches(array("notbar")), is(false));
    }

    @Test
    public void matcherShouldPassWhenRequiredElementMatches() {
        assertThat(matcher.matches(array("foo", "bar")), is(true));
    }

    private ArrayNode array(String... items) {
        ArrayNode array = MAPPER.createArrayNode();
        for (String item : items) {
            array.add(item);
        }
        return array;
    }
}