Created
January 26, 2018 09:26
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PowerMock with System.currentTimeMillis
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| apply plugin: 'com.android.application' | |
| android { | |
| compileSdkVersion 26 | |
| defaultConfig { | |
| applicationId "sample.com.sample_app" | |
| minSdkVersion 15 | |
| targetSdkVersion 26 | |
| versionCode 1 | |
| versionName "1.0" | |
| testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" | |
| } | |
| buildTypes { | |
| release { | |
| minifyEnabled false | |
| proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' | |
| } | |
| } | |
| } | |
| dependencies { | |
| implementation fileTree(dir: 'libs', include: ['*.jar']) | |
| implementation 'com.android.support:appcompat-v7:26.1.0' | |
| implementation 'com.android.support.constraint:constraint-layout:1.0.2' | |
| testImplementation 'junit:junit:4.12' | |
| androidTestImplementation 'com.android.support.test:runner:1.0.1' | |
| androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' | |
| testImplementation 'org.mockito:mockito-core:2.8.9' | |
| String powerMockVersion = "1.7.3" | |
| testImplementation "org.powermock:powermock-module-junit4:${powerMockVersion}" | |
| testImplementation "org.powermock:powermock-api-mockito2:${powerMockVersion}" | |
| } |
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| package sample.com.sample_app; | |
| import android.support.annotation.NonNull; | |
| public class FileUtils { | |
| @NonNull | |
| public static String generateName() { | |
| return Long.toString(System.currentTimeMillis()); | |
| } | |
| } |
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| package sample.com.sample_app; | |
| import org.junit.Test; | |
| import org.junit.runner.RunWith; | |
| import org.powermock.api.mockito.PowerMockito; | |
| import org.powermock.core.classloader.annotations.PrepareForTest; | |
| import org.powermock.modules.junit4.PowerMockRunner; | |
| import static junit.framework.TestCase.assertEquals; | |
| @RunWith(PowerMockRunner.class) | |
| @PrepareForTest({System.class}) | |
| public class FileUtilsTest { | |
| @Test | |
| public void generateName() { | |
| PowerMockito.spy(System.class); | |
| PowerMockito.when(System.currentTimeMillis()).thenReturn(100L); | |
| String name = FileUtils.generateName(); | |
| assertEquals("100", name); | |
| } | |
| } |
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