BooleanAnd

Beschreibung

Die Funktion BooleanAnd ("&&") aus der Bool'schen Algebra vergleicht zwei Aussagen auf "true" oder "false". Der Ausdruck x && y gibt true zurück, wenn x und y beide true sind, ansonsten wird immer false zurückgegeben.

Syntax

x && y

Parameter

• x - boolean
• y - boolean

Return Value

• Gibt einen Boolean zurück.

Beispiele

 1 && 1    --> true
 0 && 1    --> false
 1 && 0    --> false
 0 && 0    --> false

 (2+4==6) && (3+3==6)    --> true

JUnit Tests

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@Test
public void testBooleanOr1() {
	assertTrue(Evaluator.getBooleanResult("1 || 1", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOr2() {
	assertTrue(Evaluator.getBooleanResult("0 || 1", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOr3() {
	assertTrue(Evaluator.getBooleanResult("1 || 0", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOr4() {
	assertTrue(!Evaluator.getBooleanResult("0 || 0", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOr5() {
	assertEquals(true, Evaluator.getBooleanResult("(2+4==6) || (3+3==6)", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithVariables1() {
	assertTrue(Evaluator.getBooleanResult("[pos=2] || 1", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithVariables2() {
	assertTrue(Evaluator.getBooleanResult("1 || [pos=1]", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithInput1() {
	assertTrue(Evaluator.getBooleanResult("[var=b] || 1", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithInput2() {
	assertTrue(Evaluator.getBooleanResult("1 || [var=a]", exerciseVariableMap, fillInVariableMap) );
}

@Test
public void testBooleanOrWithEncapsulation1() {
	assertTrue(!Evaluator.getBooleanResult("0 || (0 || 0)", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithEncapsulation2() {
	assertTrue(Evaluator.getBooleanResult("1 || (1 || 1)", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithEncapsulation3() {
	assertTrue(!Evaluator.getBooleanResult("0 || (0 || (0 || (0 ||(0 || 0))))", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithEncapsulation4() {
	assertTrue(Evaluator.getBooleanResult("1 || (1 || (1 || (1 || (1 || 1))))", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithEncapsulation5() {
	assertTrue(!Evaluator.getBooleanResult("((((0 || 0) || 0) || 0) || 0) || 0", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithEncapsulation6() {
	assertTrue(Evaluator.getBooleanResult("((((1 || 1) || 1) || 1) || 1) || 1", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithDifferentNumbers1() {
	assertTrue(Evaluator.getBooleanResult("2 || 2", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithDifferentNumbers2() {
	assertTrue(Evaluator.getBooleanResult("-1 || 2", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithDifferentNumbers3() {
	assertFalse(Evaluator.getBooleanResult("-1 || 0", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testBooleanOrWithDifferentNumbers4() {
	assertTrue(Evaluator.getBooleanResult("2.34 || 1.11", exerciseVariableMap, fillInVariableMap));
}

@Test(expected=ParserException.class)
public void testBooleanOrWithWrongInputCharacter() {
	Evaluator.getBooleanResult("1 || ab", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test(expected=FunctionInvalidArgumentTypeException.class)
public void testBooleanOrWithWrongInputString() {
	Evaluator.getBooleanResult("1 || 'a'", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test (expected=UndefinedExerciseVariableException.class)
public void testBooleanOrMissingExcerciseVariable() {
	Evaluator.getBooleanResult("[var=j] || 1", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test (expected=UndefinedFillInVariableException.class)
public void testBooleanOrWithMissingInput() {
	Evaluator.getBooleanResult("[pos=42] || 1", exerciseVariableMap, fillInVariableMap);
	fail();
}

Hinweise

• erwartet zwei boolsche Ausdrücke