### Question:
SensitivityValue { public double getVariableReference() { return variableReference; } @JsonCreator  SensitivityValue(@JsonProperty("factor") SensitivityFactor sensitivityFactor,
                            @JsonProperty("value") double value,
                            @JsonProperty("functionReference") double functionReference,
                            @JsonProperty("variableReference") double variableReference); SensitivityFactor getFactor(); double getValue(); double getFunctionReference(); double getVariableReference();  }### Answer:
@Test public void getVariableReference() { SensitivityValue sensitivityValue = new SensitivityValue(Mockito.mock(SensitivityFactor.class), 1.f, 2.f, 3.f); assertEquals(3.f, sensitivityValue.getVariableReference(), EPSILON_COMPARISON); }