Merge pull request #12100 from Alex-Golub/study/junit5-intro
JUnit5 writing test conventions, reformatting and import optimization
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commit
98d8db1b11
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@ -1,35 +1,34 @@
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package com.baeldung;
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package com.baeldung;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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import org.junit.jupiter.api.function.Executable;
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import java.util.ConcurrentModificationException;
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import java.util.ConcurrentModificationException;
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import java.util.HashMap;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Map;
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import org.junit.jupiter.api.Test;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.function.Executable;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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public class ExceptionUnitTest {
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class ExceptionUnitTest {
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@Test
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@Test
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void shouldThrowException() {
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void shouldThrowException() {
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Throwable exception = assertThrows(UnsupportedOperationException.class, () -> {
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Throwable exception = assertThrows(UnsupportedOperationException.class, () -> {
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throw new UnsupportedOperationException("Not supported");
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throw new UnsupportedOperationException("Not supported");
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});
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});
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assertEquals(exception.getMessage(), "Not supported");
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assertEquals("Not supported", exception.getMessage());
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}
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}
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@Test
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@Test
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void assertThrowsException() {
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void assertThrowsException() {
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String str = null;
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String str = null;
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assertThrows(IllegalArgumentException.class, () -> {
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assertThrows(IllegalArgumentException.class, () -> Integer.valueOf(str));
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Integer.valueOf(str);
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});
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}
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}
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@Test
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@Test
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public void whenModifyMapDuringIteration_thenThrowExecption() {
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void whenModifyMapDuringIteration_thenThrowException() {
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Map<Integer, String> hashmap = new HashMap<>();
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Map<Integer, String> hashmap = new HashMap<>();
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hashmap.put(1, "One");
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hashmap.put(1, "One");
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hashmap.put(2, "Two");
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hashmap.put(2, "Two");
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@ -1,12 +1,12 @@
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package com.baeldung;
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package com.baeldung;
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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.Test;
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import java.util.Arrays;
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import java.util.Arrays;
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import java.util.List;
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import java.util.List;
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import org.junit.jupiter.api.Disabled;
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import static org.junit.jupiter.api.Assertions.*;
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import org.junit.jupiter.api.Test;
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class FirstUnitTest {
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class FirstUnitTest {
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@ -14,20 +14,24 @@ class FirstUnitTest {
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void lambdaExpressions() {
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void lambdaExpressions() {
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List<Integer> numbers = Arrays.asList(1, 2, 3);
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List<Integer> numbers = Arrays.asList(1, 2, 3);
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assertTrue(numbers.stream()
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assertTrue(numbers.stream()
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.mapToInt(i -> i)
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.mapToInt(Integer::intValue)
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.sum() > 5, "Sum should be greater than 5");
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.sum() > 5, "Sum should be greater than 5");
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}
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}
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@Disabled("test to show MultipleFailuresError")
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@Disabled("test to show MultipleFailuresError")
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@Test
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@Test
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void groupAssertions() {
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void groupAssertions() {
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int[] numbers = { 0, 1, 2, 3, 4 };
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int[] numbers = {0, 1, 2, 3, 4};
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assertAll("numbers", () -> assertEquals(numbers[0], 1), () -> assertEquals(numbers[3], 3), () -> assertEquals(numbers[4], 1));
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assertAll("numbers",
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() -> assertEquals(numbers[0], 1),
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() -> assertEquals(numbers[3], 3),
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() -> assertEquals(numbers[4], 1)
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);
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}
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}
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@Test
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@Test
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@Disabled
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@Disabled("Disabled test example")
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void disabledTest() {
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void disabledTest() {
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assertTrue(false);
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fail();
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}
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}
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}
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}
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@ -1,16 +1,10 @@
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package com.baeldung;
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package com.baeldung;
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import org.junit.jupiter.api.*;
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import java.util.logging.Logger;
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import java.util.logging.Logger;
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import org.junit.jupiter.api.AfterAll;
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class JUnit5NewFeaturesUnitTest {
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import org.junit.jupiter.api.AfterEach;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Disabled;
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import org.junit.jupiter.api.DisplayName;
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import org.junit.jupiter.api.Test;
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public class JUnit5NewFeaturesUnitTest {
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private static final Logger log = Logger.getLogger(JUnit5NewFeaturesUnitTest.class.getName());
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private static final Logger log = Logger.getLogger(JUnit5NewFeaturesUnitTest.class.getName());
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@ -28,7 +22,6 @@ public class JUnit5NewFeaturesUnitTest {
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@Test
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@Test
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void testSingleSuccessTest() {
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void testSingleSuccessTest() {
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log.info("Success");
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log.info("Success");
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}
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}
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@Test
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@Test
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@ -1,28 +1,28 @@
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package com.baeldung;
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package com.baeldung;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.DynamicTest;
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import org.junit.jupiter.api.TestFactory;
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import java.util.ArrayList;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Arrays;
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import java.util.List;
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import java.util.List;
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import java.util.stream.Stream;
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import java.util.stream.Stream;
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import org.junit.jupiter.api.DynamicTest;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import org.junit.jupiter.api.TestFactory;
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public class LiveTest {
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class LiveTest {
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private List<String> in = new ArrayList<>(Arrays.asList("Hello", "Yes", "No"));
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private List<String> in = new ArrayList<>(Arrays.asList("Hello", "Yes", "No"));
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private List<String> out = new ArrayList<>(Arrays.asList("Cześć", "Tak", "Nie"));
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private List<String> out = new ArrayList<>(Arrays.asList("Cześć", "Tak", "Nie"));
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@TestFactory
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@TestFactory
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public Stream<DynamicTest> translateDynamicTestsFromStream() {
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Stream<DynamicTest> translateDynamicTestsFromStream() {
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return in.stream()
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return in.stream()
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.map(word -> DynamicTest.dynamicTest("Test translate " + word, () -> {
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.map(word -> DynamicTest.dynamicTest("Test translate " + word, () -> {
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int id = in.indexOf(word);
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int id = in.indexOf(word);
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assertEquals(out.get(id), translate(word));
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assertEquals(out.get(id), translate(word));
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}));
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}));
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}
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}
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private String translate(String word) {
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private String translate(String word) {
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@ -1,28 +1,26 @@
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package com.baeldung.migration.junit5;
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package com.baeldung.migration.junit5;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assumptions.assumeFalse;
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import static org.junit.jupiter.api.Assumptions.assumeTrue;
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import static org.junit.jupiter.api.Assumptions.assumingThat;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.Test;
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public class AssumptionUnitTest {
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import static org.junit.jupiter.api.Assertions.assertEquals;
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import static org.junit.jupiter.api.Assumptions.*;
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class AssumptionUnitTest {
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@Test
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@Test
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public void trueAssumption() {
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void trueAssumption() {
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assumeTrue(5 > 1, () -> "5 is greater the 1");
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assumeTrue(5 > 1, () -> "5 is greater the 1");
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assertEquals(5 + 2, 7);
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assertEquals(5 + 2, 7);
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}
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}
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@Test
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@Test
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public void falseAssumption() {
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void falseAssumption() {
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assumeFalse(5 < 1, () -> "5 is less then 1");
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assumeFalse(5 < 1, () -> "5 is less then 1");
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assertEquals(5 + 2, 7);
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assertEquals(5 + 2, 7);
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}
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}
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@Test
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@Test
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public void assumptionThat() {
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void assumptionThat() {
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String someString = "Just a string";
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String someString = "Just a string";
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assumingThat(someString.equals("Just a string"), () -> assertEquals(2 + 2, 4));
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assumingThat(someString.equals("Just a string"), () -> assertEquals(2 + 2, 4));
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}
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}
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