LessThanOrEqual: Unterschied zwischen den Versionen

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===Beispiele===
===Beispiele===
  <math>2 <= 4</math>   --> returns ''true''
  2 <= 4    --> returns true


  <math>4 <= 4</math>   --> returns ''true''
  4 <= 4    --> returns true


  <math>3 <= 2</math>   --> returns ''false''
  lessThanOrEqual(3, 2)   --> returns false
 
====JUnit Tests====
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<syntaxhighlight lang="java" class="mw-collapsible mw-collapsed" id="mw-customcollapsible-myDivision">
@BeforeClass
public static void beforeTest() throws FunctionNotImplementedException, UndefinedFillInVariableException,
UndefinedExerciseVariableException, ParserException, ErroneousFillInVariableException, ErroneousExerciseVariableException {
lessThanOrEqualFillInVariableMap.put(1, ExpressionParser.parse("3", null, null));
lessThanOrEqualFillInVariableMap.put(2, ExpressionParser.parse("1", null, null));
lessThanOrEqualFillInVariableMap.put(3, ExpressionParser.parse("2.5", null, null));
 
lessThanOrEqualExerciseVariableMap.put("a", ExpressionParser.parse("8", null, null));
lessThanOrEqualExerciseVariableMap.put("b", ExpressionParser.parse("25", null, null));
lessThanOrEqualExerciseVariableMap.put("c", ExpressionParser.parse("2.5", null, null));
}
 
@Test
public void testLessThanOrEqual1() {
assertTrue(!Evaluator.getBooleanResult("22<=8", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual2() {
assertTrue(Evaluator.getBooleanResult("8<=8", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual3() {
assertTrue(Evaluator.getBooleanResult("2<=8", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual4() {
assertTrue(Evaluator.getBooleanResult("8<=9", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual5() {
assertTrue(!Evaluator.getBooleanResult("45<=7", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual6() {
assertTrue(Evaluator.getBooleanResult("7<=7", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual7() {
assertTrue(Evaluator.getBooleanResult("-0.2<=0", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqual8() {
assertTrue(Evaluator.getBooleanResult("0<=0", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables1() {
assertTrue(!Evaluator.getBooleanResult("22<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables2() {
assertTrue(Evaluator.getBooleanResult("3<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables3() {
assertTrue(Evaluator.getBooleanResult("2<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables4() {
assertTrue(Evaluator.getBooleanResult("8<=[var=b]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
@Test
public void testLessThanOrEqualWithVariables5() {
assertTrue(Evaluator.getBooleanResult("8<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables6() {
assertTrue(!Evaluator.getBooleanResult("[var=b]<=23", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables7() {
assertTrue(Evaluator.getBooleanResult("[var=a]<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables8() {
assertTrue(Evaluator.getBooleanResult("[var=a]<=[var=b]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithVariables9() {
assertTrue(!Evaluator.getBooleanResult("[var=b]<=[var=a]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput1() {
assertTrue(!Evaluator.getBooleanResult("22<=[pos=1]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput2() {
assertTrue(Evaluator.getBooleanResult("3<=[pos=1]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput3() {
assertTrue(Evaluator.getBooleanResult("2<=[pos=1]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput4() {
assertTrue(Evaluator.getBooleanResult("3<=[pos=1]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput5() {
assertTrue(Evaluator.getBooleanResult("[pos=2]<=5", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput6() {
assertTrue(!Evaluator.getBooleanResult("5<=[pos=2]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithInput7() {
assertTrue(!Evaluator.getBooleanResult("[pos=1]<=[pos=2]", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithEncapsulation1() {
assertTrue(Evaluator.getBooleanResult("1 <= (1 <= 2)", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithEncapsulation2() {
assertTrue(Evaluator.getBooleanResult("1 <= (1 <= (0 <= 1))", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithEncapsulation3() {
assertTrue(Evaluator.getBooleanResult("0 <= (0 <= (0 <= (0 <= (0 <= 1))))", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test
public void testLessThanOrEqualWithEncapsulation4() {
assertTrue(Evaluator.getBooleanResult("((((1 <= 1) <= 1) <= 1) <= 1) <= 1", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap));
}
 
@Test(expected=ParserException.class)
public void testLessThanOrEqualWithWrongInputCharacter() {
Evaluator.getBooleanResult("6 <= ab", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap);
fail();
}
 
@Test(expected=FunctionInvalidArgumentTypeException.class)
public void testLessThanOrEqualWithWrongInputString() {
Evaluator.getBooleanResult("6 <= 'a'", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap);
fail();
}
 
@Test (expected=UndefinedExerciseVariableException.class)
public void testLessThanOrEqualWithMissingExcerciseVariable() {
Evaluator.getBooleanResult("[var=j] <= 2", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap);
fail();
}
 
@Test (expected=UndefinedFillInVariableException.class)
public void testLessThanOrEqualWithMissingInput() {
Evaluator.getBooleanResult("[pos=42] <= 2", lessThanOrEqualExerciseVariableMap, lessThanOrEqualFillInVariableMap);
fail();
}
</syntaxhighlight>


===Hinweise===
===Hinweise===


[[Kategorie:Evaluatorfunktion]]
[[Kategorie:Evaluatorfunktion]]

Version vom 25. September 2018, 10:00 Uhr

Beschreibung

Die Funktion lessThanOrEqual vergleicht zwei Ausdrücke der Größe nach miteinander und gibt einen Wahrheitswert zurück, abhängig davon, ob der linksstehende Ausdruck kleiner-gleich dem rechtsstehenden Ausdruck ist.

Syntax

a <= b
lessThanOrEqual(a,b)

Parameter

Return Value

  • Gibt einen Boolean zurück.
    Wenn der linke Ausdruck kleiner-gleich dem rechten Ausdruck ist, wird true zurückgegeben, andernfalls false.

Beispiele

2 <= 4    --> returns true

4 <= 4    --> returns true

lessThanOrEqual(3, 2)    --> returns false

Hinweise

Abgerufen von „https://wiki.uni-due.de/jack/index.php?title=LessThanOrEqual&oldid=2816“