### Question:
DocumentationTagIndexedSmoosher extends AbstractDocumentationBlockIndexedSmoosher { @Override public boolean canSmoosh(final String line) { if (line == null) { throw new IllegalArgumentException("Line cannot be null."); } return isTagOpen(line); }  @Override boolean canSmoosh(final String line);  }### Answer:
@Test public void testCanSmoosh() { assertThat(smoosher.canSmoosh("@returns")).isTrue(); assertThat(smoosher.canSmoosh("@notAClosingTag")).isFalse(); }