### Question:
StringToBooleanTransformer implements Transformer { @Override public Boolean apply(Serializable serializable) { return tryConvertToBoolean(serializable); }  @Override Boolean apply(Serializable serializable);  }### Answer:
@Test void testApplyIntZero() { String test = "0"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); boolean result = stringToBooleanTransformer.apply(test); assertEquals(Boolean.FALSE, result); }
@Test void testApplyTrue() { String test = "TRUE"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); boolean result = stringToBooleanTransformer.apply(test); assertEquals(Boolean.TRUE, result); }
@Test void testApplyFalse() { String test = "False"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); boolean result = stringToBooleanTransformer.apply(test); assertEquals(Boolean.FALSE, result); }
@Test void testApplyNoBool() { String test = "test"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); Assertions.assertThrows(IllegalArgumentException.class, () -> stringToBooleanTransformer.apply(test)); }
@Test void testApplyIntOne() { String test = "1"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); boolean result = stringToBooleanTransformer.apply(test); assertEquals(Boolean.TRUE, result); }
@Test void testApplyIntNotZeroOne() { String test = "2"; StringToBooleanTransformer stringToBooleanTransformer = new StringToBooleanTransformer(); boolean result = stringToBooleanTransformer.apply(test); assertEquals(Boolean.TRUE, result); }