@Test
public void testHeaderExtension() {

  assertThat(LexicalIncludePaths.hasHeaderExtension("header")).isTrue();
  assertThat(LexicalIncludePaths.hasHeaderExtension("header.h")).isTrue();
  assertThat(LexicalIncludePaths.hasHeaderExtension("header.inl")).isTrue();
  assertThat(LexicalIncludePaths.hasHeaderExtension("header.cpp")).isFalse();
}