diff --git a/libraries/pom.xml b/libraries/pom.xml index 95948a83dd..3d99c53779 100644 --- a/libraries/pom.xml +++ b/libraries/pom.xml @@ -269,6 +269,12 @@ h2 1.4.195 + + pl.pragmatists + JUnitParams + ${jUnitParams.version} + test + org.quartz-scheduler quartz @@ -297,6 +303,7 @@ 1.24.0 1.1.3-rc.5 1.4.0 + 1.1.0 diff --git a/libraries/src/main/java/com/baeldung/junitparams/SafeAdditionUtil.java b/libraries/src/main/java/com/baeldung/junitparams/SafeAdditionUtil.java new file mode 100644 index 0000000000..a2c1573dca --- /dev/null +++ b/libraries/src/main/java/com/baeldung/junitparams/SafeAdditionUtil.java @@ -0,0 +1,15 @@ +package com.baeldung.junitparams; + +public class SafeAdditionUtil { + + public int safeAdd(int a, int b) { + long result = ((long) a) + b; + if (result > Integer.MAX_VALUE) { + return Integer.MAX_VALUE; + } else if (result < Integer.MIN_VALUE) { + return Integer.MIN_VALUE; + } + return (int) result; + } + +} diff --git a/libraries/src/test/java/com/baeldung/junitparams/SafeAdditionUtilTest.java b/libraries/src/test/java/com/baeldung/junitparams/SafeAdditionUtilTest.java new file mode 100644 index 0000000000..c9141a6e57 --- /dev/null +++ b/libraries/src/test/java/com/baeldung/junitparams/SafeAdditionUtilTest.java @@ -0,0 +1,55 @@ +package com.baeldung.junitparams; + +import static org.junit.Assert.*; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import junitparams.FileParameters; +import junitparams.JUnitParamsRunner; +import junitparams.Parameters; + +@RunWith(JUnitParamsRunner.class) +public class SafeAdditionUtilTest { + + private SafeAdditionUtil serviceUnderTest = new SafeAdditionUtil(); + + @Test + @Parameters({ "1, 2, 3", "-10, 30, 20", "15, -5, 10", "-5, -10, -15" }) + public void whenCalledWithAnnotationProvidedParams_thenSafeAddAndReturn(int a, int b, int expectedValue) { + assertEquals(expectedValue, serviceUnderTest.safeAdd(a, b)); + } + + @Test + @Parameters(method = "parametersToTestAdd") + public void whenCalledWithNamedMethod_thendSafeAddAndReturn(int a, int b, int expectedValue) { + assertEquals(expectedValue, serviceUnderTest.safeAdd(a, b)); + } + + private Object[] parametersToTestAdd() { + return new Object[] { new Object[] { 1, 2, 3 }, new Object[] { -10, 30, 20 }, new Object[] { Integer.MAX_VALUE, 2, Integer.MAX_VALUE }, new Object[] { Integer.MIN_VALUE, -8, Integer.MIN_VALUE } }; + } + + @Test + @Parameters + public void whenCalledWithnoParam_thenLoadByNameSafeAddAndReturn(int a, int b, int expectedValue) { + assertEquals(expectedValue, serviceUnderTest.safeAdd(a, b)); + } + + private Object[] parametersForWhenCalledWithnoParam_thenLoadByNameSafeAddAndReturn() { + return new Object[] { new Object[] { 1, 2, 3 }, new Object[] { -10, 30, 20 }, new Object[] { Integer.MAX_VALUE, 2, Integer.MAX_VALUE }, new Object[] { Integer.MIN_VALUE, -8, Integer.MIN_VALUE } }; + } + + @Test + @Parameters(source = TestDataProvider.class) + public void whenCalledWithNamedClass_thenSafeAddAndReturn(int a, int b, int expectedValue) { + assertEquals(expectedValue, serviceUnderTest.safeAdd(a, b)); + } + + @Test + @FileParameters("src/test/resources/JunitParamsTestParameters.csv") + public void whenCalledWithCsvFile_thenSafeAddAndReturn(int a, int b, int expectedValue) { + assertEquals(expectedValue, serviceUnderTest.safeAdd(a, b)); + } + +} diff --git a/libraries/src/test/java/com/baeldung/junitparams/TestDataProvider.java b/libraries/src/test/java/com/baeldung/junitparams/TestDataProvider.java new file mode 100644 index 0000000000..d318345a56 --- /dev/null +++ b/libraries/src/test/java/com/baeldung/junitparams/TestDataProvider.java @@ -0,0 +1,13 @@ +package com.baeldung.junitparams; + +public class TestDataProvider { + + public static Object[] provideBasicData() { + return new Object[] { new Object[] { 1, 2, 3 }, new Object[] { -10, 30, 20 }, new Object[] { 15, -5, 10 }, new Object[] { -5, -10, -15 } }; + } + + public static Object[] provideEdgeCaseData() { + return new Object[] { new Object[] { Integer.MAX_VALUE, 2, Integer.MAX_VALUE }, new Object[] { Integer.MIN_VALUE, -2, Integer.MIN_VALUE }, }; + } + +} diff --git a/libraries/src/test/resources/JunitParamsTestParameters.csv b/libraries/src/test/resources/JunitParamsTestParameters.csv new file mode 100644 index 0000000000..84eb5a0b23 --- /dev/null +++ b/libraries/src/test/resources/JunitParamsTestParameters.csv @@ -0,0 +1,4 @@ +1,2,3 +-10, 30, 20 +15, -5, 10 +-5, -10, -15 \ No newline at end of file