String expected =
        firstLine + System.lineSeparator() + secondLine + System.lineSeparator() + moreLines;
    assertThat(getStackTraceAsString(e)).matches(expected);
  }

  public void testGetCausalChain() {
    SomeUncheckedException sue = new SomeUncheckedException();
    IllegalArgumentException iae = new IllegalArgumentException(sue);
    RuntimeException re = new RuntimeException(iae);

    String expected =
        firstLine + System.lineSeparator() + secondLine + System.lineSeparator() + moreLines;
    assertThat(getStackTraceAsString(e)).matches(expected);
  }

  public void testGetCausalChain() {
    SomeUncheckedException sue = new SomeUncheckedException();
    IllegalArgumentException iae = new IllegalArgumentException(sue);
    RuntimeException re = new RuntimeException(iae);