Floor: Unterschied zwischen den Versionen
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====JUnit Tests==== | ====JUnit Tests==== | ||
<syntaxhighlight lang="java" class="mw-collapsible mw-collapsed"> | <syntaxhighlight lang="java" class="mw-collapsible mw-collapsed"> | ||
@Test | |||
public void testFloor(){ | |||
assertTrue( 5 == getEvaluator().getNumberResult("floor(5.4)")); | |||
assertTrue( 5 == getEvaluator().getNumberResult("floor(5.0)")); | |||
assertTrue( 0 == getEvaluator().getNumberResult("floor(0)")); | |||
assertTrue(-6 == getEvaluator().getNumberResult("floor(-5.4343664)")); | |||
} | |||
@Test | |||
public void testFloorWithInput(){ | |||
assertTrue( 0 == getEvaluator().getNumberResult("floor([pos=1])")); | |||
assertTrue( 2 == getEvaluator().getNumberResult("floor([pos=2])")); | |||
assertTrue(-5 == getEvaluator().getNumberResult("floor([pos=3])")); | |||
} | |||
@Test | |||
public void testFloorWithVariables(){ | |||
assertTrue( 0 == getEvaluator().getNumberResult("floor([var=a])")); | |||
assertTrue( 2 == getEvaluator().getNumberResult("floor([var=b])")); | |||
assertTrue(-5 == getEvaluator().getNumberResult("floor([var=c])")); | |||
} | |||
@Test | |||
public void testFloorWithExpressions(){ | |||
assertTrue( 5 == getEvaluator().getNumberResult("floor(floor(5.1354))")); | |||
} | |||
@Test(expected=InvalidEvaluatorFunctionArgumentException.class) | |||
public void testFloorWithWrongInputCharacter(){ | |||
getEvaluator().getNumberResult("floor(a)"); | |||
} | |||
@Test(expected=UnsupportedEvaluatorFunctionException.class) | |||
public void testFloorWithTwoArguments(){ | |||
getEvaluator().getNumberResult("floor(7.4321, 3)"); | |||
} | |||
@Test(expected=UnsupportedEvaluatorFunctionException.class) | |||
public void testFloorWithThreeArguments(){ | |||
getEvaluator().getNumberResult("floor(1.434321, 5, 7)"); | |||
} | |||
@Test(expected=UndefinedExerciseVariableException.class) | |||
public void testFloorWithMissingExerciseVariable(){ | |||
getEvaluator().getNumberResult("floor([var=j])"); | |||
} | |||
@Test(expected=UndefinedFillInVariableException.class) | |||
public void testFloorWithMissingInput(){ | |||
getEvaluator().getNumberResult("floor([pos=42])"); | |||
} | |||
</syntaxhighlight> | </syntaxhighlight> | ||
Version vom 20. Juni 2017, 10:01 Uhr
Beschreibung
Die Funktion floor rundet eine rationale Zahl auf die nächstgrößere ganze Zahl ab. Die Funktion erwartet eine Zahl als Parameter und gibt eine Zahl zurück.
Syntax
floor(float zahl)
Parameter
- zahl - eine abzurundende rationale Zahl
Return Value
- Gibt eine Ganzzahl zurück.
Beispiele
Standardfälle
floor('7.3') --> returns 7 floor('-2.4') --> returns -3
Benutzung mit Variablen
floor('[pos=1]') floor('[var=a]')
JUnit Tests
@Test
public void testFloor(){
assertTrue( 5 == getEvaluator().getNumberResult("floor(5.4)"));
assertTrue( 5 == getEvaluator().getNumberResult("floor(5.0)"));
assertTrue( 0 == getEvaluator().getNumberResult("floor(0)"));
assertTrue(-6 == getEvaluator().getNumberResult("floor(-5.4343664)"));
}
@Test
public void testFloorWithInput(){
assertTrue( 0 == getEvaluator().getNumberResult("floor([pos=1])"));
assertTrue( 2 == getEvaluator().getNumberResult("floor([pos=2])"));
assertTrue(-5 == getEvaluator().getNumberResult("floor([pos=3])"));
}
@Test
public void testFloorWithVariables(){
assertTrue( 0 == getEvaluator().getNumberResult("floor([var=a])"));
assertTrue( 2 == getEvaluator().getNumberResult("floor([var=b])"));
assertTrue(-5 == getEvaluator().getNumberResult("floor([var=c])"));
}
@Test
public void testFloorWithExpressions(){
assertTrue( 5 == getEvaluator().getNumberResult("floor(floor(5.1354))"));
}
@Test(expected=InvalidEvaluatorFunctionArgumentException.class)
public void testFloorWithWrongInputCharacter(){
getEvaluator().getNumberResult("floor(a)");
}
@Test(expected=UnsupportedEvaluatorFunctionException.class)
public void testFloorWithTwoArguments(){
getEvaluator().getNumberResult("floor(7.4321, 3)");
}
@Test(expected=UnsupportedEvaluatorFunctionException.class)
public void testFloorWithThreeArguments(){
getEvaluator().getNumberResult("floor(1.434321, 5, 7)");
}
@Test(expected=UndefinedExerciseVariableException.class)
public void testFloorWithMissingExerciseVariable(){
getEvaluator().getNumberResult("floor([var=j])");
}
@Test(expected=UndefinedFillInVariableException.class)
public void testFloorWithMissingInput(){
getEvaluator().getNumberResult("floor([pos=42])");
}