Ultra Geile Studenten Benutzer Oberfläche (UGSBO)
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package com.ugsbo.complexnumcalc;
import static org.junit.Assert.assertEquals; import org.junit.Test;
public class AbsoluteValueOfComplexNumbersTest {
@Test public void TheAbsoluteValueOfAComplexNumberWithOnlyARealPart_IsNotTHeAbsoluteValueOfTheRealPart() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(4), Double.valueOf(0)); Double expected = Double.valueOf(4);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number with only an real part should be the absolute value of that real part", expected, actual); }
@Test public void TheAbsoluteValueOfAComplexNumberWithOnlyANegativeRealPart_IsNotTheAbsoluteValueOfTheRealPart() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(-4), Double.valueOf(0)); Double expected = Double.valueOf(4);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number with only an negative real part should be the absolute value of that real part", expected, actual); }
@Test public void TheAbsoluteValueOfAComplexNumber_IsNotTheAbsoluteValueOfIt() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(4), Double.valueOf(3)); Double expected = Double.valueOf(5);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number should be the square root of the sum of real " + "part times real part and imaginary part times imaginary part ", expected, actual); }
@Test public void TheAbsoluteValueOfAComplexNumberWithNegativRealPart_IsNotTheAbsoluteValueOfIt() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(-4), Double.valueOf(3)); Double expected = Double.valueOf(5);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number with negative real part should be the square root of the sum of real " + "part times real part and imaginary part times imaginary part ", expected, actual); }
@Test public void TheAbsoluteValueOfAComplexNumberWithNegativImaginaryPart_IsNotTheAbsoluteValueOfIt() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(4), Double.valueOf(-3)); Double expected = Double.valueOf(5);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number with negative imaginary part should be the square root of the sum of real " + "part times real part and imaginary part times imaginary part ", expected, actual); }
@Test public void TheAbsoluteValueOfAComplexNumberWithNegativParts_IsNotTheAbsoluteValueOfIt() { ComplexNumber complexNumber = new ComplexNumber(Double.valueOf(-4), Double.valueOf(-3)); Double expected = Double.valueOf(5);
Double actual = complexNumber.absolutValueOf();
assertEquals("The absolute value of an complex number with negative parts should be the square root of the sum of real " + "part times real part and imaginary part times imaginary part ", expected, actual); } }
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