Examples of org.apache.crunch.CombineFn.StringConcatAggregator

org.apache.crunch.CombineFn.StringConcatAggregator


  @Test
  public void testConcatenation() {
    String[] arrayNull = new String[] { null, "" };
    assertEquals(ImmutableList.of("foofoobarbar"), applyAggregator(
        new StringConcatAggregator("", true), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo/foobar/bar"), applyAggregator(
        new StringConcatAggregator("/", false), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("  "), applyAggregator(
        new StringConcatAggregator(" ", true), ImmutableList.of(" ", "")));
    assertEquals(ImmutableList.of(""), applyAggregator(
        new StringConcatAggregator(" ", true), Arrays.asList(arrayNull)));
    assertEquals(ImmutableList.of("foo bar"), applyAggregator(
        new StringConcatAggregator(" ", true, 20, 3), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo foobar"), applyAggregator(
        new StringConcatAggregator(" ", true, 10, 6), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo bar"), applyAggregator(
        new StringConcatAggregator(" ", true, 9, 6), ImmutableList.of("foo", "foobar", "bar")));
  }

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        new StringConcatAggregator(" ", true, 9, 6), ImmutableList.of("foo", "foobar", "bar")));
  }


  @Test
  public void testConcatenationReset() {
    StringConcatAggregator a = new StringConcatAggregator(" ", true, 10, 6);


    assertEquals(ImmutableList.of("foo foobar"), applyAggregator(a, ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo foobar"), applyAggregator(a, ImmutableList.of("foo", "foobar", "bar")));
  }

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  @Test(expected = NullPointerException.class)
  public void testConcatenationNullException() {
    String[] arrayNull = new String[] { null, "" };
    assertEquals(ImmutableList.of(""), applyAggregator(
        new StringConcatAggregator(" ", false), Arrays.asList(arrayNull)));
  }

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  @Test
  public void testConcatenation() {
    String[] arrayNull = new String[] { null, "" };
    assertEquals(ImmutableList.of("foofoobarbar"), applyAggregator(
        new StringConcatAggregator("", true), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo/foobar/bar"), applyAggregator(
        new StringConcatAggregator("/", false), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("  "), applyAggregator(
        new StringConcatAggregator(" ", true), ImmutableList.of(" ", "")));
    assertEquals(ImmutableList.of(""), applyAggregator(
        new StringConcatAggregator(" ", true), Arrays.asList(arrayNull)));
    assertEquals(ImmutableList.of("foo bar"), applyAggregator(
        new StringConcatAggregator(" ", true, 20, 3), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo foobar"), applyAggregator(
        new StringConcatAggregator(" ", true, 10, 6), ImmutableList.of("foo", "foobar", "bar")));
    assertEquals(ImmutableList.of("foo bar"), applyAggregator(
        new StringConcatAggregator(" ", true, 9, 6), ImmutableList.of("foo", "foobar", "bar")));
  }

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  @Test(expected = NullPointerException.class)
  public void testConcatenationNullException() {
    String[] arrayNull = new String[] { null, "" };
    assertEquals(ImmutableList.of(""), applyAggregator(
        new StringConcatAggregator(" ", false), Arrays.asList(arrayNull)));
  }

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org.apache.crunch.CombineFnTest

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