ToDegree

Beschreibung

Die Funktion toDegree wandelt Radiant-Werte in Grad um. Die Funktion erwartet einen Radiant und gibt den entsprechenden Grad zurück.

Syntax

toDegree(Gleitkommazahl radiant)

Parameter

• radiant - der umzuwandelnde Radiant-Wert

Return Value

• Gibt den Radiant-Wert in Grad zurück

Beispiele

Standardfälle

toDegree(3.14159)   --> returns 180
toDegree(6.28319)   --> returns 360

Benutzung mit Variablen

toDegree([pos=1])
toDegree([var=a])

JUnit Tests

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@BeforeClass
public static void beforeTest() {
	OMOBJ piFourth = new OMOBJ();
	OMOBJ piHalf = new OMOBJ();
	OMOBJ pi = new OMOBJ();
	OMOBJ twoPi = new OMOBJ();
	OMOBJ one = new OMOBJ();
	piFourth.setOMF(OMCreator.createOMF(PI / 4));
	piHalf.setOMF(OMCreator.createOMF(PI / 2));
	pi.setOMF(OMCreator.createOMF(PI));
	twoPi.setOMF(OMCreator.createOMF(2 * PI));
	one.setOMI(OMCreator.createOMI(1));

	fillIn.put(45, piFourth);
	fillIn.put(90, piHalf);
	fillIn.put(1, one);

	exerVar.put("degc", pi);
	exerVar.put("degd", twoPi);
	exerVar.put("b", one);
}

@Test
public void testToDegrees1() {
	assertEquals(540, Evaluator.getNumberResult("toDegree(" + 3 * PI + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees2() {
	assertEquals(360, Evaluator.getNumberResult("toDegree(" + 2 * PI + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees3() {
	assertEquals(180, Evaluator.getNumberResult("toDegree(" + PI + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees4() {
	assertEquals(-180, Evaluator.getNumberResult("toDegree(" + -PI + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees5() {
	assertEquals(90, Evaluator.getNumberResult("toDegree(" + PI / 2 + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees6() {
	assertEquals(45, Evaluator.getNumberResult("toDegree(" + PI / 4 + ")", exerVar, fillIn), 0);
}

@Test
public void testToDegrees7() {
	assertEquals(180 / PI, Evaluator.getNumberResult("toDegree(1)", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithInput1() {
	assertEquals(90, Evaluator.getNumberResult("toDegree('[pos=90]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithInput2() {
	assertEquals(45, Evaluator.getNumberResult("toDegree('[pos=45]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithInput3() {
	assertEquals(180 / PI, Evaluator.getNumberResult("toDegree('[pos=1]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithVariables1() {
	assertEquals(360, Evaluator.getNumberResult("toDegree('[var=degd]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithVariables2() {
	assertEquals(180, Evaluator.getNumberResult("toDegree('[var=degc]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithVariables3() {
	assertEquals(180 / PI, Evaluator.getNumberResult("toDegree('[var=b]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithVariables4() {
	assertEquals(180, Evaluator.getNumberResult("toDegree('[var=PI]')", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithPointNumbers1() {
	assertEquals(.2 * 180 / (PI), Evaluator.getNumberResult("toDegree(0.2)", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithPointNumbers2() {
	assertEquals(.1 * 180 / (-PI), Evaluator.getNumberResult("toDegree(-0.1)", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithExpressions1() {
	assertEquals(0, Evaluator.getNumberResult("toDegrees(toDegree(0))", exerVar, fillIn), 0);
}

@Test
public void testToDegreesWithExpressions2() {
	assertEquals(0, Evaluator.getNumberResult("toDegrees(toDegree(toDegree(0)))", exerVar, fillIn), 0);
}

@Test(expected = FunctionInvalidArgumentTypeException.class)
public void testToDegreesWithWrongInputCharacter() {
	Evaluator.getNumberResult("toDegree(a)", exerVar, fillIn);
}

@Test(expected = FunctionInvalidNumberOfArgumentsException.class)
public void testToDegreesWithTwoArguments() {
	Evaluator.getNumberResult("toDegree(4, 3)", exerVar, fillIn);
}

@Test(expected = FunctionInvalidNumberOfArgumentsException.class)
public void testToDegreesWithThreeArguments() {
	Evaluator.getNumberResult("toDegree(2, 3, 4)", exerVar, fillIn);
}

@Test(expected = UndefinedExerciseVariableException.class)
public void testToDegreesWithMissingExerciseVariable() {
	Evaluator.getNumberResult("toDegree('[var=j]')", exerVar, fillIn);
}

@Test(expected = UndefinedFillInVariableException.class)
public void testToDegreesWithMissingInput() {
	Evaluator.getNumberResult("toDegree('[pos=42]')", exerVar, fillIn);
}