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BAEL-3118 (#7458)

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* BAEL-3118
- Increment Decrement Unary Operators

* BAEL-3118
- Added UnitTests for Increment Decrement Unary Operators

* BAEL-3118
This commit is contained in:
vatsalgosar 2019-08-02 00:12:03 +05:30 committed by maibin
parent fd7aa95496
commit 4b6871b1fc
1 changed files with 63 additions and 0 deletions
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core-java-modules/core-java-lang-syntax/src/test/java/com/baeldung/incrementdecrementunaryoperator/IncrementDecrementUnaryOperatorUnitTest.java Normal file
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package com.baeldung.incrementdecrementunaryoperator;
import static org.assertj.core.api.Assertions.assertThat;
import org.junit.Test;
public class IncrementDecrementUnaryOperatorUnitTest {
@Test
public void givenAnOperand_whenUsingPreIncrementUnaryOperator_thenOperandIsIncrementedByOne() {
int operand = 1;
++operand;
assertThat(operand).isEqualTo(2);
}
@Test
public void givenANumber_whenUsingPreIncrementUnaryOperatorInEvaluation_thenNumberIsIncrementedByOne() {
int operand = 1;
int number = ++operand;
assertThat(number).isEqualTo(2);
}
@Test
public void givenAnOperand_whenUsingPreDecrementUnaryOperator_thenOperandIsDecrementedByOne() {
int operand = 1;
--operand;
assertThat(operand).isEqualTo(0);
}
@Test
public void givenANumber_whenUsingPreDecrementUnaryOperatorInEvaluation_thenNumberIsDecrementedByOne() {
int operand = 1;
int number = --operand;
assertThat(number).isEqualTo(0);
}
@Test
public void givenAnOperand_whenUsingPostIncrementUnaryOperator_thenOperandIsIncrementedByOne() {
int operand = 1;
operand++;
assertThat(operand).isEqualTo(2);
}
@Test
public void givenANumber_whenUsingPostIncrementUnaryOperatorInEvaluation_thenNumberIsSameAsOldValue() {
int operand = 1;
int number = operand++;
assertThat(number).isEqualTo(1);
}
@Test
public void givenAnOperand_whenUsingPostDecrementUnaryOperator_thenOperandIsDecrementedByOne() {
int operand = 1;
operand--;
assertThat(operand).isEqualTo(0);
}
@Test
public void givenANumber_whenUsingPostDecrementUnaryOperatorInEvaluation_thenNumberIsSameAsOldValue() {
int operand = 1;
int number = operand--;
assertThat(number).isEqualTo(1);
}
}