c150871a94
* Updated saga to JUnit 5 * Update fix for CI job in trampoline module * Updated update-method module to JUnit 5 * Upgraded to latest JUnit Jupiter JUnit 4 is not needed when using JUnit-Vintage * Reverted change to access modifier on Trampoline * Cleanup to resolve code smells * Formatting * Formatting * Migrating to JUnit5 and updating some Mockito patterns * Migrating to JUnit5 * Migrating to JUnit5 * Migrating to JUnit 5 * Formatting cleanup * Added missing scope for junit * Fixed tests that were not running previously. Co-authored-by: Subhrodip Mohanta <hello@subho.xyz>
101 lines
3.4 KiB
Java
101 lines
3.4 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2021 Ilkka Seppälä
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.arrangeactassert;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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import org.junit.jupiter.api.Test;
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/**
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* Arrange/Act/Assert (AAA) is a pattern for organizing unit tests. It is a way to structure your
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* tests so they're easier to read, maintain and enhance.
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*
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* <p>It breaks tests down into three clear and distinct steps:
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* <p>1. Arrange: Perform the setup and initialization required for the test.
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* <p>2. Act: Take action(s) required for the test.
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* <p>3. Assert: Verify the outcome(s) of the test.
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*
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* <p>This pattern has several significant benefits. It creates a clear separation between a test's
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* setup, operations, and results. This structure makes the code easier to read and understand. If
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* you place the steps in order and format your code to separate them, you can scan a test and
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* quickly comprehend what it does.
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*
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* <p>It also enforces a certain degree of discipline when you write your tests. You have to think
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* clearly about the three steps your test will perform. But it makes tests more natural to write at
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* the same time since you already have an outline.
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*
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* <p>In ({@link CashAAATest}) we have four test methods. Each of them has only one reason to
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* change and one reason to fail. In a large and complicated code base, tests that honor the single
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* responsibility principle are much easier to troubleshoot.
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*/
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class CashAAATest {
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@Test
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void testPlus() {
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//Arrange
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var cash = new Cash(3);
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//Act
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cash.plus(4);
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//Assert
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assertEquals(7, cash.count());
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}
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@Test
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void testMinus() {
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//Arrange
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var cash = new Cash(8);
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//Act
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var result = cash.minus(5);
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//Assert
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assertTrue(result);
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assertEquals(3, cash.count());
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}
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@Test
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void testInsufficientMinus() {
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//Arrange
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var cash = new Cash(1);
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//Act
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var result = cash.minus(6);
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//Assert
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assertFalse(result);
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assertEquals(1, cash.count());
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}
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@Test
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void testUpdate() {
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//Arrange
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var cash = new Cash(5);
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//Act
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cash.plus(6);
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var result = cash.minus(3);
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//Assert
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assertTrue(result);
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assertEquals(8, cash.count());
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}
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}
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