UnaryPlus: Unterschied zwischen den Versionen

Version vom 25. September 2018, 09:37 Uhr

Die Funktion UnaryPlus (+) lässt eine positive Zahl positiv und eine negative Zahl negativ.

 +a
 unaryPlus(a)

+3    --> 3

+(+2)    --> 2

unaryPlus(5)    --> 5

@@ Zeile 13: / Zeile 13: @@
 ===Beispiele===
-    +3    --> 3
+ +3    --> 3
-    +(+2)    --> 2
+ +(+2)    --> 2
-====JUnit Tests====
-<span class="mw-customtoggle-myDivision">[Anzeigen]</span>
+ unaryPlus(5)    --> 5
-<syntaxhighlight lang="java" class="mw-collapsible mw-collapsed" id="mw-customcollapsible-myDivision">
-@Before
-public void beforeTest() {
-  placeFillInVariable(1, OMParser.parse("3"));
-  placeFillInVariable(2, OMParser.parse("1"));
-  placeExerciseVariable("a", OMParser.parse("3"));
-  placeExerciseVariable("b", OMParser.parse("1"));
-}
-@Test
-public void testUnaryPlus(){
-  assertTrue(8 == getEvaluator().getNumberResult("+8"));
-  assertTrue(2 == getEvaluator().getNumberResult("+2"));
-}
-@Test
-public void testUnaryPlusWithInput(){
-  assertTrue(3 == getEvaluator().getNumberResult("+[pos=1]"));
-  assertTrue(1 == getEvaluator().getNumberResult("+[pos=2])"));
-}
-@Test
-public void testUnaryPlusWithVariables(){
-  assertTrue(3 == getEvaluator().getNumberResult("+[var=a]"));
-  assertTrue(1 == getEvaluator().getNumberResult("+[var=b]"));
-}
-@Test
-public void testUnaryPlusWithExpressions(){
-  assertTrue(5 == getEvaluator().getNumberResult("+(+5)"));
-  assertTrue(4 == getEvaluator().getNumberResult("+(+(+4))"));
-}
-@Test(expected=UnsupportedUnaryOperatorException.class)
-public void testUnaryPlusWithWrongInputCharacter(){
-  assertTrue(5 == getEvaluator().getNumberResult("+'a'"));
-}
-</syntaxhighlight>
 ===Hinweise===