Junit 5 Pioneer @DefaultLocale

JUnit 5 pioneer provides @DefaultLocale annotation to temporarily change the locale value for test execution. Once the test execution completes, its default value will be restored.

@DefaultLocale can be configured in multiple ways.

• @DefaultLocale(language = "en")
• @DefaultLocale(language = "en", country = "EN")
• @DefaultLocale(language = "en", country = "EN", variant = "gb")

package com.example.junit5.sujan;

import java.util.Locale;

public class AppleCalculator {
    Locale getLanguage() {
        Locale locale = new Locale("en");
        return locale;
    }

    Locale getLanguageCountryTest() {
        Locale locale = new Locale("en", "EN");
        return locale;
    }

    Locale getLanguageCountryVariant() {
        Locale locale = new Locale("en", "EN", "gb");
        return locale;
    }
}

package com.example.junit5.sujan;

import org.junit.jupiter.api.Test;
import org.junitpioneer.jupiter.DefaultLocale;

import java.util.Locale;

import static org.junit.jupiter.api.Assertions.assertEquals;

class AppleCalculatorTest {
    @Test
    @DefaultLocale(language = "en")
    void languageTest() {
        AppleCalculator appleCalculator = new AppleCalculator();
        assertEquals(Locale.getDefault(), appleCalculator.getLanguage());
    }

    @Test
    @DefaultLocale(language = "en", country = "EN")
    void languageCountryTest() {
        AppleCalculator appleCalculator = new AppleCalculator();
        assertEquals(Locale.getDefault(), appleCalculator.getLanguageCountryTest());
    }

    @Test
    @DefaultLocale(language = "en", country = "EN", variant = "gb")
    void languageCountryVariantTest() {
        AppleCalculator appleCalculator = new AppleCalculator();
        assertEquals(Locale.getDefault(), appleCalculator.getLanguageCountryVariant());
    }
}

plugins {
    id 'java'
}

group 'org.example'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}

dependencies {
    testImplementation('org.junit.jupiter:junit-jupiter:5.6.2')
    testCompile 'org.junit-pioneer:junit-pioneer:0.6.0'
}