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kandi has reviewed junit4 and discovered the below as its top functions. This is intended to give you an instant insight into junit4 implemented functionality, and help decide if they suit your requirements.
A programmer-oriented testing framework for Java.
android datastore-preferences: Property delegate must have a 'getValue(Context, KProperty<*>)' method
import java.util.prefs.Preferences
import androidx.datastore.preferences.core.Preferences
val Context.dataStore by preferencesDataStore(name = "settings")
-----------------------
import java.util.prefs.Preferences
import androidx.datastore.preferences.core.Preferences
val Context.dataStore by preferencesDataStore(name = "settings")
-----------------------
import java.util.prefs.Preferences
import androidx.datastore.preferences.core.Preferences
val Context.dataStore by preferencesDataStore(name = "settings")
Getting Unresolved reference error while trying to work with Android material3
implementation "androidx.compose.material3:material3:1.0.0-alpha02"
Fail to restTemplate create with @PowerMockIgnore in powermock
com.sun.org.apache.xalan.internal.xsltc.trax.*
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.*;
import static org.powermock.api.mockito.PowerMockito.*;
import java.io.File;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PowerMockIgnore;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.modules.junit4.PowerMockRunnerDelegate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.stereotype.Component;
import org.springframework.test.context.junit4.SpringRunner;
import lombok.AllArgsConstructor;
import lombok.Data;
@SpringBootTest
@RunWith(PowerMockRunner.class)
@PowerMockRunnerDelegate(SpringRunner.class)
@PrepareForTest(PowerMockTarget.class)
@PowerMockIgnore({"com.sun.org.apache.xerces.*", "javax.xml.*", "javax.xml.transform.*", "org.xml.*", "javax.management.*", "javax.net.ssl.*", "com.sun.org.apache.xalan.internal.xsltc.trax.*"})
public class PowerMockTest {
@Test
public void mockStaticMethod() throws Exception {
File fileMock = mock(File.class);
when(fileMock.exists()).thenReturn(true);
whenNew(File.class.getConstructor(String.class)).withArguments(anyString()).thenReturn(fileMock);
PowerMockTarget target = new PowerMockTarget();
assertEquals(target.isFileExist(), true);
assertEquals("My bean message", message.getContent());
}
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
import java.io.File;
public class PowerMockTarget {
public boolean isFileExist() {
if(!new File("filename").exists()) {
throw new RuntimeException();
}
return true;
}
}
-----------------------
com.sun.org.apache.xalan.internal.xsltc.trax.*
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.*;
import static org.powermock.api.mockito.PowerMockito.*;
import java.io.File;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PowerMockIgnore;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.modules.junit4.PowerMockRunnerDelegate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.stereotype.Component;
import org.springframework.test.context.junit4.SpringRunner;
import lombok.AllArgsConstructor;
import lombok.Data;
@SpringBootTest
@RunWith(PowerMockRunner.class)
@PowerMockRunnerDelegate(SpringRunner.class)
@PrepareForTest(PowerMockTarget.class)
@PowerMockIgnore({"com.sun.org.apache.xerces.*", "javax.xml.*", "javax.xml.transform.*", "org.xml.*", "javax.management.*", "javax.net.ssl.*", "com.sun.org.apache.xalan.internal.xsltc.trax.*"})
public class PowerMockTest {
@Test
public void mockStaticMethod() throws Exception {
File fileMock = mock(File.class);
when(fileMock.exists()).thenReturn(true);
whenNew(File.class.getConstructor(String.class)).withArguments(anyString()).thenReturn(fileMock);
PowerMockTarget target = new PowerMockTarget();
assertEquals(target.isFileExist(), true);
assertEquals("My bean message", message.getContent());
}
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
import java.io.File;
public class PowerMockTarget {
public boolean isFileExist() {
if(!new File("filename").exists()) {
throw new RuntimeException();
}
return true;
}
}
-----------------------
com.sun.org.apache.xalan.internal.xsltc.trax.*
import static org.junit.Assert.*;
import static org.mockito.ArgumentMatchers.*;
import static org.powermock.api.mockito.PowerMockito.*;
import java.io.File;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PowerMockIgnore;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.powermock.modules.junit4.PowerMockRunnerDelegate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.stereotype.Component;
import org.springframework.test.context.junit4.SpringRunner;
import lombok.AllArgsConstructor;
import lombok.Data;
@SpringBootTest
@RunWith(PowerMockRunner.class)
@PowerMockRunnerDelegate(SpringRunner.class)
@PrepareForTest(PowerMockTarget.class)
@PowerMockIgnore({"com.sun.org.apache.xerces.*", "javax.xml.*", "javax.xml.transform.*", "org.xml.*", "javax.management.*", "javax.net.ssl.*", "com.sun.org.apache.xalan.internal.xsltc.trax.*"})
public class PowerMockTest {
@Test
public void mockStaticMethod() throws Exception {
File fileMock = mock(File.class);
when(fileMock.exists()).thenReturn(true);
whenNew(File.class.getConstructor(String.class)).withArguments(anyString()).thenReturn(fileMock);
PowerMockTarget target = new PowerMockTarget();
assertEquals(target.isFileExist(), true);
assertEquals("My bean message", message.getContent());
}
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
@Data
@AllArgsConstructor
class MessageForTest{
private long id;
private String content;
}
import java.io.File;
public class PowerMockTarget {
public boolean isFileExist() {
if(!new File("filename").exists()) {
throw new RuntimeException();
}
return true;
}
}
Configuring Axon in Spring for integration testing
...
public class MyAggregate {
@CommandHandler
public static MyAggregate create(CreateCmd cmd) {
MyAggregate a = new MyAggregate();
AggregateLifecycle.apply(new CreatedEvent(UUID.randomUuid().toString());
return a;
}
}
....
String generatedId = commandGateway.sendAndWait(new CreateCmd(null));
.... // continue
Room DataBase Implementation not found w/Jetpack Compose
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt' //Add this
}
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
implementation "androidx.room:room-ktx:$rootProject.roomVersion"
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
androidTestImplementation "androidx.room:room-testing:$rootProject.roomVersion"
project-level-build{
dependencies{
classpath 'com.android.tools.build:gradle:7.1.0-alpha04'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
-----------------------
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt' //Add this
}
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
implementation "androidx.room:room-ktx:$rootProject.roomVersion"
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
androidTestImplementation "androidx.room:room-testing:$rootProject.roomVersion"
project-level-build{
dependencies{
classpath 'com.android.tools.build:gradle:7.1.0-alpha04'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
-----------------------
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt' //Add this
}
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
implementation "androidx.room:room-ktx:$rootProject.roomVersion"
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
androidTestImplementation "androidx.room:room-testing:$rootProject.roomVersion"
project-level-build{
dependencies{
classpath 'com.android.tools.build:gradle:7.1.0-alpha04'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
-----------------------
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt' //Add this
}
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
implementation "androidx.room:room-ktx:$rootProject.roomVersion"
kapt "androidx.room:room-compiler:$rootProject.roomVersion"
androidTestImplementation "androidx.room:room-testing:$rootProject.roomVersion"
project-level-build{
dependencies{
classpath 'com.android.tools.build:gradle:7.1.0-alpha04'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
Mock a method coming from parent class to return a mocked data
@RunWith(PowerMockRunner.class)
public class OfferServiceTest {
@Spy
@InjectMocks
private OfferService offerService = new OfferService();
@Mock
private RestTemplate restTemplate;
@Mock
private HttpEntity<Object> entity;
@Test
public void test() {
PowerMockito.when(offerService, "getHttpEntity", "www.example.com")
.thenReturn(entity);
PowerMockito.when(restTemplate.exchange(anyString(), any(), any(), any()))
.thenReturn(something);
assertEquals(someObject, offerService.get());
}
}
@ExtendWith(MockitoExtension.class)
public class OfferServiceTest {
@Spy
@InjectMocks
private OfferService offerService;
@Mock
private RestTemplate restTemplate;
@Mock
private HttpEntity<Object> entity;
@Test
public void test() {
when(ReflectionTestUtils.invokeMethod(offerService, "getHttpEntity", "www.example.com"))
.thenReturn(entity);
when(restTemplate.exchange(anyString(), any(), any(), any()))
.thenReturn(something);
assertEquals(someObject, offerService.get());
}
}
-----------------------
@RunWith(PowerMockRunner.class)
public class OfferServiceTest {
@Spy
@InjectMocks
private OfferService offerService = new OfferService();
@Mock
private RestTemplate restTemplate;
@Mock
private HttpEntity<Object> entity;
@Test
public void test() {
PowerMockito.when(offerService, "getHttpEntity", "www.example.com")
.thenReturn(entity);
PowerMockito.when(restTemplate.exchange(anyString(), any(), any(), any()))
.thenReturn(something);
assertEquals(someObject, offerService.get());
}
}
@ExtendWith(MockitoExtension.class)
public class OfferServiceTest {
@Spy
@InjectMocks
private OfferService offerService;
@Mock
private RestTemplate restTemplate;
@Mock
private HttpEntity<Object> entity;
@Test
public void test() {
when(ReflectionTestUtils.invokeMethod(offerService, "getHttpEntity", "www.example.com"))
.thenReturn(entity);
when(restTemplate.exchange(anyString(), any(), any(), any()))
.thenReturn(something);
assertEquals(someObject, offerService.get());
}
}
Can't set Typography in Jetpack Compose
ext {
compose_version = '1.0.0-beta09'
}
Compose: beta08 breaks clickable
@Composable
fun Card(
onClick: () -> Unit,
modifier: Modifier = Modifier,
shape: Shape = MaterialTheme.shapes.medium,
backgroundColor: Color = MaterialTheme.colors.surface,
contentColor: Color = contentColorFor(backgroundColor),
border: BorderStroke? = null,
elevation: Dp = 1.dp,
interactionSource: MutableInteractionSource = remember { MutableInteractionSource() },
indication: Indication? = LocalIndication.current,
enabled: Boolean = true,
onClickLabel: String? = null,
role: Role? = null,
content: @Composable () -> Unit
)
java.lang.IllegalStateException: function = <anonymous>, count = 4, index = 4
implementation "androidx.compose.ui:ui:1.0.0-beta07"
implementation "androidx.compose.material:material:1.0.0-beta07"
implementation "androidx.compose.ui:ui-tooling:1.0.0-beta07"
androidTestImplementation "androidx.compose.ui:ui-test-junit4:1.0.0-beta07"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha01"
ext {
compose_version = '1.0.0-beta07'
}
implementation "androidx.compose.ui:ui:$compose_version"
implementation "androidx.compose.material:material:$compose_version"
//...
-----------------------
implementation "androidx.compose.ui:ui:1.0.0-beta07"
implementation "androidx.compose.material:material:1.0.0-beta07"
implementation "androidx.compose.ui:ui-tooling:1.0.0-beta07"
androidTestImplementation "androidx.compose.ui:ui-test-junit4:1.0.0-beta07"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha01"
ext {
compose_version = '1.0.0-beta07'
}
implementation "androidx.compose.ui:ui:$compose_version"
implementation "androidx.compose.material:material:$compose_version"
//...
-----------------------
implementation "androidx.compose.ui:ui:1.0.0-beta07"
implementation "androidx.compose.material:material:1.0.0-beta07"
implementation "androidx.compose.ui:ui-tooling:1.0.0-beta07"
androidTestImplementation "androidx.compose.ui:ui-test-junit4:1.0.0-beta07"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha01"
ext {
compose_version = '1.0.0-beta07'
}
implementation "androidx.compose.ui:ui:$compose_version"
implementation "androidx.compose.material:material:$compose_version"
//...
java.lang.NoSuchMethodError after upgrading Jetpack Compose to 1.0.0‑beta07
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta06'
implementation "androidx.compose.runtime:runtime-livedata:$compose_version"
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta07'
-----------------------
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta06'
implementation "androidx.compose.runtime:runtime-livedata:$compose_version"
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta07'
-----------------------
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta06'
implementation "androidx.compose.runtime:runtime-livedata:$compose_version"
implementation 'androidx.compose.runtime:runtime-livedata:1.0.0-beta07'
-----------------------
implementation "androidx.navigation:navigation-compose:1.0.0-alpha10"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha01"
-----------------------
implementation "androidx.navigation:navigation-compose:1.0.0-alpha10"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha01"
-----------------------
implementation("androidx.hilt:hilt-navigation-compose:1.0.0-alpha02")
implementation("com.google.accompanist:accompanist-swiperefresh:0.10.0")
-----------------------
implementation("androidx.hilt:hilt-navigation-compose:1.0.0-alpha02")
implementation("com.google.accompanist:accompanist-swiperefresh:0.10.0")
QUESTION
android datastore-preferences: Property delegate must have a 'getValue(Context, KProperty<*>)' method
Asked 2022-Feb-28 at 12:19I'm writing a jetpack compose android app, I need to store some settings permanently.
I decided to use androidx.datastore:datastore-preferences:1.0.0
library, I have added this to my classpath.
According to the https://developer.android.com/topic/libraries/architecture/datastore descripton I have added this line of code to my kotline file at the top level:
val Context.prefsDataStore: DataStore by preferencesDataStore(name = "settings")
But I get a compile error:
e: ...SettingsViewModel.kt: (13, 50): Property delegate must have a 'getValue(Context, KProperty<*>)' method. None of the following functions is suitable:
public abstract operator fun getValue(thisRef: Context, property: KProperty<*>): DataStore<Preferences> defined in kotlin.properties.ReadOnlyProperty
How can I use the datastore-preferences?
My build.gradle file:
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-kapt'
}
apply plugin: 'dagger.hilt.android.plugin'
apply plugin: 'kotlinx-serialization'
android {
compileSdk 31
defaultConfig {
applicationId "hu.homedashboard.mobile"
minSdk 22
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
useIR = true
}
buildFeatures {
compose true
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion "$kotlinVersion"
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation "androidx.activity:activity-compose:1.3.1"
implementation "androidx.appcompat:appcompat:1.3.1"
implementation "androidx.datastore:datastore-preferences:1.0.0"
implementation "androidx.compose.material:material:$compose_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
implementation "androidx.compose.ui:ui:$compose_version"
implementation "com.google.accompanist:accompanist-swiperefresh:0.20.3"
implementation "androidx.core:core-ktx:1.6.0"
implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
implementation "androidx.lifecycle:lifecycle-runtime-ktx:2.3.1"
implementation "androidx.lifecycle:lifecycle-viewmodel-compose:$lifecycle_version"
implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
implementation "androidx.navigation:navigation-compose:2.4.0-alpha10"
implementation "com.google.android.material:material:1.4.0"
implementation "com.google.dagger:hilt-android:2.40.1"
implementation "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:0.8.0"
implementation "com.squareup.retrofit2:retrofit:2.9.0"
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion"
implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.0"
implementation "org.ocpsoft.prettytime:prettytime:5.0.2.Final"
implementation 'androidx.hilt:hilt-navigation-compose:1.0.0-alpha03'
kapt "com.google.dagger:hilt-compiler:2.38.1"
kapt "com.google.dagger:dagger-android-processor:2.40.1"
kapt "com.google.guava:guava:31.0.1-android"
api "com.google.guava:guava:31.0.1-android"
testImplementation 'junit:junit:4.+'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
}
kapt {
correctErrorTypes true
javacOptions {
option("-Xmaxerrs", 500)
}
}
ANSWER
Answered 2022-Jan-13 at 09:20I got this error because of an incorrect import:
import java.util.prefs.Preferences
So fix it by
import androidx.datastore.preferences.core.Preferences
or
val Context.dataStore by preferencesDataStore(name = "settings")
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