NotEqual

Beschreibung

Die Funktionen notEqual vergleicht zwei Ausdrücke auf Gleichheit miteinander. Wenn die beiden Ausdrücke nicht übereinstimmen gibt die Funktion true zurück, ansonsten false.

Syntax

a != b

Parameter

• a - double
• b - double

Return Value

• Gibt einen Boolean zurück.

Beispiele

<math>4!=6</math>    --> returns true

JUnit Tests

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@BeforeClass
public static void beforeTest() throws FunctionNotImplementedException, UndefinedFillInVariableException,
		UndefinedExerciseVariableException, ParserException, ErroneousFillInVariableException, ErroneousExerciseVariableException {
	notEqualFillInVariableMap.put(1, ExpressionParser.parse("3", null, null));
	notEqualFillInVariableMap.put(2, ExpressionParser.parse("10", null, null));
	notEqualFillInVariableMap.put(3, ExpressionParser.parse("3.5", null, null));

	notEqualExerciseVariableMap.put("a", ExpressionParser.parse("3", null, null));
	notEqualExerciseVariableMap.put("b", ExpressionParser.parse("10", null, null));
	notEqualExerciseVariableMap.put("c", ExpressionParser.parse("3.5", null, null));
}

@Test
public void testNotEqual1() {
	assertTrue(Evaluator.getBooleanResult("1 != 0", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual2() {
	assertTrue(Evaluator.getBooleanResult("30 != 7", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual3() {
	assertTrue(Evaluator.getBooleanResult("-10 != 3", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual4() {
	assertTrue(!Evaluator.getBooleanResult("1 != 1", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual5() {
	assertTrue(!Evaluator.getBooleanResult("0 != 0", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual6() {
	assertTrue(Evaluator.getBooleanResult("'a' != 'b'", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual7() {
	assertTrue(Evaluator.getBooleanResult("'' != 0", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual8() {
	assertTrue(Evaluator.getBooleanResult("0 != ''", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqual9() {
	assertTrue(!Evaluator.getBooleanResult("0 != '0'", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithVariables1() {
	assertTrue(Evaluator.getBooleanResult("[var=a] != 0", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithVariables2() {
	assertTrue(Evaluator.getBooleanResult("30 != [var=a]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithVariables3() {
	assertTrue(Evaluator.getBooleanResult("[var=a]!= [var=b]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithVariables4() {
	assertTrue(!Evaluator.getBooleanResult("[var=a] != [var=a]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithInput1() {
	assertTrue(Evaluator.getBooleanResult("[pos=1] != 0", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithInput2() {
	assertTrue(Evaluator.getBooleanResult("30 != [pos=1]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithInput3() {
	assertTrue(Evaluator.getBooleanResult("[pos=1] != [pos=2]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithInput4() {
	assertTrue(!Evaluator.getBooleanResult("[pos=1] != [pos=1]", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation1() {
	assertFalse(Evaluator.getBooleanResult("1 != (1 != 0)", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation2() {
	assertTrue(Evaluator.getBooleanResult("1 != (1 != (1 != 0))", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation3() {
	assertTrue(Evaluator.getBooleanResult("1 != (1 != (1 != (1 != (1 != 0))))", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation4() {
	assertFalse(Evaluator.getBooleanResult("1 != (1 != (1 != (1 != (1 != 1))))", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation5() {
	assertTrue(Evaluator.getBooleanResult("((((1 != 0) != 1) != 1) != 1) != 1", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test
public void testNotEqualWithEncapsulation6() {
	assertFalse(Evaluator.getBooleanResult("((((1 != 1) != 1) != 1) != 1) != 1", notEqualExerciseVariableMap, notEqualFillInVariableMap));
}

@Test(expected=ParserException.class)
public void testNotEqualWithWrongInputCharacter() {
	Evaluator.getBooleanResult("1 == ab", notEqualExerciseVariableMap, notEqualFillInVariableMap);
	fail();
}

@Test (expected=UndefinedExerciseVariableException.class)
public void testNotEqualWithMissingExcerciseVariable() {
	Evaluator.getBooleanResult("[var=j] == 2", notEqualExerciseVariableMap, notEqualFillInVariableMap);
	fail();
}

@Test (expected=UndefinedFillInVariableException.class)
public void testNotEqualWithMissingInput() {
	Evaluator.getBooleanResult("[pos=42] == 2", notEqualExerciseVariableMap, notEqualFillInVariableMap);
	fail();
}