ToLowerCase

Beschreibung

Die Funktion toLowerCase wandelt alle Buchstaben von a-z, A-Z einer Zeichenkette in Kleinbuchstaben um. Die Funktion erwartet einen String und gibt einen String zurück.

Syntax

toLowerCase(String zeichenkette)

Parameter

• zeichenkette - die Zeichenkette, in der alle Buchstaben in Großbuchstaben umgewandelt werden sollen

Return Value

• Gibt einen String zurück

Beispiele

Standardfälle

toLowerCase('ICH BIN GROSS')   --> returns 'ich bin gross'
toLowerCase('ABCDEFGHIJKLMNOPQRSTUVWXYZ')   --> returns 'abcdefghijklmnopqrstuvwxyz'
toLowerCase('1234567890.!\"§$%&/()=?')   --> returns '1234567890.!\"§$%&/()=?'

Benutzung mit Variablen

toLowerCase('[pos=1]')
toLowerCase('[var=a]')

JUnit Tests

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@BeforeClass
public static void beforeTest() {
	
		fillInVariableMap.put(7, OMConverter.toObject("<OMOBJ><OMSTR>HELLO</OMSTR></OMOBJ>"));
		fillInVariableMap.put(8, OMConverter.toObject("<OMOBJ><OMSTR>HELLO3</OMSTR></OMOBJ>"));

		exerciseVariableMap.put("g", OMConverter.toObject("<OMOBJ><OMSTR>HELLO</OMSTR></OMOBJ>"));
		exerciseVariableMap.put("h", OMConverter.toObject("<OMOBJ><OMSTR>HELLO3</OMSTR></OMOBJ>"));
	
}

@Test public void testToLowerCase1() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("abcdefghijklmnopqrstuvwxyz")), Evaluator.evaluate("toLowerCase('ABCDEFGHIJKLMNOPQRSTUVWXYZ')", exerciseVariableMap, fillInVariableMap));
}

@Test public void testToLowerCase2() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("1234567890.!\"§$%&/()=?")), Evaluator.evaluate("toLowerCase('1234567890.!\"§$%&/()=?')", exerciseVariableMap, fillInVariableMap));
}

@Test public void testToLowerCase3() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("abcdefghijklmnopqrstuvwxyz")), Evaluator.evaluate("toLowerCase('abcdefghijklmnopqrstuvwxyz')", exerciseVariableMap, fillInVariableMap));
}

@Test public void testToLowerCase4() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("")), Evaluator.evaluate("toLowerCase('')", exerciseVariableMap, fillInVariableMap));
}

@Test public void testToLowerCase5() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR(" ")), Evaluator.evaluate("toLowerCase(' ')", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testToLowerCaseWithInput1() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("hello")), Evaluator.evaluate("toLowerCase('[pos=7]')", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testToLowerCaseWithInput2() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("hello3")), Evaluator.evaluate("toLowerCase('[pos=8]')", exerciseVariableMap, fillInVariableMap));
}

@Test
public void TestToLowerCaseWithVariables1() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("hello")), Evaluator.evaluate("toLowerCase('[var=g]')", exerciseVariableMap, fillInVariableMap));
}

@Test
public void TestToLowerCaseWithVariables2() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("hello3")), Evaluator.evaluate("toLowerCase('[var=h]')", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testToLowerCaseWithExpressions1() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("a")), Evaluator.evaluate("toLowerCase(toLowerCase('A'))", exerciseVariableMap, fillInVariableMap));
}

@Test
public void testToLowerCaseWithExpressions2() {
	assertEquals(OMCreator.createOMOBJ(OMCreator.createOMSTR("a")), Evaluator.evaluate("toLowerCase(toLowerCase(toLowerCase('A')))", exerciseVariableMap, fillInVariableMap));
}

@Test(expected=ParserException.class)
public void testToLowerCaseWithWrongInputCharacter() {
	Evaluator.evaluate("toLowerCase(ab)", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test(expected=FunctionInvalidNumberOfArgumentsException.class)
public void testToLowerCaseWithTwoArguments() {
	Evaluator.evaluate("toLowerCase('A', 'B')", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test(expected=FunctionInvalidNumberOfArgumentsException.class)
public void testToLowerCaseWithThreeArguments() {
	Evaluator.evaluate("toLowerCase('A', 'B', 'C')", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test(expected=UndefinedExerciseVariableException.class)
public void testToLowerCaseWithMissingExerciseVariable() {
	Evaluator.evaluate("toLowerCase('[var=j]')", exerciseVariableMap, fillInVariableMap);
	fail();
}

@Test(expected=UndefinedFillInVariableException.class)
public void testToLowerCaseWithMissingInput() {
	Evaluator.evaluate("toLowerCase('[pos=42]')", exerciseVariableMap, fillInVariableMap);
	fail();
}