gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/ReplaceGlobalStepTest.java

/*
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 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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,
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package org.apache.tinkerpop.gremlin.process.traversal.step.map;

import org.apache.commons.lang3.StringUtils;
import org.apache.tinkerpop.gremlin.process.traversal.Traversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
import org.apache.tinkerpop.gremlin.process.traversal.step.StepTest;
import org.junit.Test;
import org.mockito.internal.util.StringUtil;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

public class ReplaceGlobalStepTest extends StepTest {

    @Override
    protected List<Traversal> getTraversals() {
        return Collections.singletonList(__.replace("a", "b"));
    }

    @Test
    public void testReturnTypes() {
        assertEquals("halo", __.__("hello").replace("el", "a").next());
        assertEquals("world", __.__("world").replace("el", "a").next());

        assertEquals("hello", __.__("hello").replace(null, "a").next());
        assertEquals("hello", __.__("hello").replace("el", null).next());
        assertEquals("hello", __.__("hello").replace(null, null).next());

        assertArrayEquals(new String[]{"hell0", "w0rld", null, ""},
                __.__("hello", "world", null, "").replace("o", "0").toList().toArray());
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldThrowWithIncomingArrayList() { __.__(Arrays.asList("a", "b", "c")).replace("a", "b").next(); }

}