BooleanNot
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Beschreibung
Die Funktion BooleanNot (!) testet ob eine Aussage wahr oder falsch ist.
Syntax
!a
Parameter
- a - boolean
Return Value
- Gibt einen Boolean zurück.
Beispiele
!0 --> true !1 --> false
!(3+4==6) --> true
JUnit Tests
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@Test
public void testBooleanNot1() {
assertEquals(1, Evaluator.getNumberResult("!0", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNot2() {
assertEquals(0, Evaluator.getNumberResult("!1", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNot3() {
assertEquals(true, Evaluator.getBooleanResult("!(3+4==6)", exerciseVariableMap, fillInVariableMap));
}
@Test
public void testBooleanNotWithInput1() {
assertEquals(1, Evaluator.getNumberResult("![pos=1]", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNotWithInput2() {
assertEquals(0, Evaluator.getNumberResult("![pos=2]", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNotWithVariables1() {
assertEquals(1, Evaluator.getNumberResult("![var=a]", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNotWithVariables2() {
assertEquals(0, Evaluator.getNumberResult("![var=b]", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNotWithExpressions1() {
assertEquals(0, Evaluator.getNumberResult("!!0", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test
public void testBooleanNotWithExpressions2() {
assertEquals(1, Evaluator.getNumberResult("!!!0", exerciseVariableMap, fillInVariableMap), 0.0);
}
@Test(expected=FunctionInvalidArgumentTypeException.class)
public void testBooleanNotWithWrongInputCharacter() {
Evaluator.getNumberResult("!'a'", exerciseVariableMap, fillInVariableMap);
fail();
}
Hinweise
- Wenn der Boolean b true ist gibt !b false zurück.