test: Add sample tests

realmkoroutines/src/main/AndroidManifest.xml

@@ -1,2 +1 @@
-<manifest
-        package="com.michaelbukachi.realmkoroutines"/>
+<manifest package="com.michaelbukachi.realmkoroutines" />

realmkoroutines/src/main/java/com/michaelbukachi/realmkoroutines/realm.kt

@@ -1,2 +1,32 @@
 package com.michaelbukachi.realmkoroutines
 
+import io.realm.*
+import kotlinx.coroutines.suspendCancellableCoroutine
+import kotlin.coroutines.resume
+import kotlin.coroutines.resumeWithException
+
+private suspend fun <T : RealmObject, S : RealmQuery<T>> findAllAwait(query: S): RealmResults<T> =
+    suspendCancellableCoroutine { continuation ->
+        val listener = RealmChangeListener<RealmResults<T>> { t -> continuation.resume(t) }
+        query.findAllAsync().addChangeListener(listener)
+    }
+
+private suspend fun <T : RealmObject, S : RealmQuery<T>> findFirstAwait(query: S): T? =
+    suspendCancellableCoroutine { continuation ->
+        val listener = RealmChangeListener { t: T? -> continuation.resume(t) }
+        query.findFirstAsync().addChangeListener(listener)
+    }
+
+private suspend fun executeAsync(realm: Realm, block: (Realm) -> Unit): Unit =
+    suspendCancellableCoroutine { continuation ->
+        realm.executeTransactionAsync(
+            { block(it) },
+            { continuation.resume(Unit) },
+            { continuation.resumeWithException(it) })
+    }
+
+suspend fun <S : RealmObject> RealmQuery<S>.await() = findAllAwait(this)
+
+suspend fun <S : RealmObject> RealmQuery<S>.awaitFirst() = findFirstAwait(this)
+
+suspend fun Realm.transactAwait(block: (Realm) -> Unit) = executeAsync(this, block)

sample/build.gradle

@@ -1,15 +1,15 @@
 apply plugin: 'com.android.application'
-
 apply plugin: 'kotlin-android'
-
 apply plugin: 'kotlin-android-extensions'
+apply plugin: 'kotlin-kapt'
+apply plugin: 'realm-android'
 
 android {
-    compileSdkVersion 28
+    compileSdkVersion rootProject.ext.compileSdkVersion
     defaultConfig {
         applicationId "com.michaelbukachi.realmkoroutines.sample"
-        minSdkVersion 16
-        targetSdkVersion 28
+        minSdkVersion rootProject.ext.minSdkVersion
+        targetSdkVersion rootProject.ext.compileSdkVersion
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -23,12 +23,17 @@ android {
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation project(':realmkoroutines')
     implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'androidx.appcompat:appcompat:1.0.2'
     implementation 'androidx.core:core-ktx:1.0.2'
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.2.0-alpha01'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutinesVersion"
+
     testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test:rules:1.2.0'
     androidTestImplementation 'androidx.test:runner:1.2.0'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }

sample/src/androidTest/java/com/michaelbukachi/realmkoroutines/sample/ExampleActivityTest.kt

@@ -0,0 +1,22 @@
+package com.michaelbukachi.realmkoroutines.sample
+
+import androidx.test.core.app.ActivityScenario
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.withId
+import androidx.test.espresso.matcher.ViewMatchers.withText
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.LargeTest
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+@LargeTest
+class ExampleActivityTest {
+
+    @Test
+    fun testGreetingsHasText() {
+        ActivityScenario.launch(ExampleActivity::class.java)
+        onView(withId(R.id.greetings)).check(matches(withText("Some Test")))
+    }
+}

sample/src/main/AndroidManifest.xml

@@ -8,13 +8,17 @@
             android:label="@string/app_name"
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
+        android:name=".RealmKoroutines"
             android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".ExampleActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+            </intent-filter>
         </activity>
     </application>
 

sample/src/main/java/com/michaelbukachi/realmkoroutines/sample/ExampleActivity.kt

@@ -0,0 +1,28 @@
+package com.michaelbukachi.realmkoroutines.sample
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import androidx.lifecycle.lifecycleScope
+import com.michaelbukachi.realmkoroutines.awaitFirst
+import com.michaelbukachi.realmkoroutines.transactAwait
+import io.realm.Realm
+import io.realm.kotlin.where
+import kotlinx.android.synthetic.main.activity_main.*
+
+class ExampleActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        lifecycleScope.launchWhenResumed {
+            val realm = Realm.getDefaultInstance()
+            realm.transactAwait {
+                it.deleteAll()
+                val testObject = TestObject(name = "Some Test")
+                it.copyToRealm(testObject)
+            }
+            val result = realm.where<TestObject>().awaitFirst()
+            greetings.text = result?.name ?: "Default"
+        }
+    }
+}

sample/src/main/java/com/michaelbukachi/realmkoroutines/sample/RealmKoroutines.kt

@@ -0,0 +1,12 @@
+package com.michaelbukachi.realmkoroutines.sample
+
+import android.app.Application
+import io.realm.Realm
+
+class RealmKoroutines : Application() {
+
+    override fun onCreate() {
+        super.onCreate()
+        Realm.init(this)
+    }
+}

sample/src/main/java/com/michaelbukachi/realmkoroutines/sample/TestObject.kt

@@ -0,0 +1,5 @@
+package com.michaelbukachi.realmkoroutines.sample
+
+import io.realm.RealmObject
+
+open class TestObject(var name: String? = "") : RealmObject()

sample/src/main/res/layout/activity_main.xml

@@ -5,9 +5,10 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        tools:context=".MainActivity">
+    tools:context=".ExampleActivity">
 
     <TextView
+        android:id="@+id/greetings"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="Hello World!"