Hardyeats: BasicSample

BasicSample/app/build.gradle

@@ -15,6 +15,8 @@
  */
 
 apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
 
 android {
     compileSdkVersion 25
@@ -54,7 +56,11 @@ dependencies {
     compile 'android.arch.lifecycle:extensions:' + rootProject.archLifecycleVersion;
     compile 'android.arch.persistence.room:runtime:' + rootProject.archRoomVersion;
     annotationProcessor "android.arch.lifecycle:compiler:" + rootProject.archLifecycleVersion;
-    annotationProcessor "android.arch.persistence.room:compiler:" + rootProject.archRoomVersion;
+    kapt "android.arch.persistence.room:compiler:" + rootProject.archRoomVersion
+
+    kapt 'com.android.databinding:compiler:3.0.0-beta2'
+    compile 'io.reactivex.rxjava2:rxjava:2.1.2'
+    compile 'io.reactivex.rxjava2:rxandroid:2.0.1'
 
     testCompile 'junit:junit:4.12'
 
@@ -72,5 +78,9 @@ dependencies {
     // Force usage of dependencies in the test app, since it is internally used by the runner module.
     androidTestCompile 'com.android.support:support-annotations:' + rootProject.supportLibVersion;
     androidTestCompile 'com.android.support:support-v4:' + rootProject.supportLibVersion;
-    androidTestCompile 'com.android.support:recyclerview-v7:' + rootProject.supportLibVersion;
+    androidTestCompile 'com.android.support:recyclerview-v7:' + rootProject.supportLibVersion
+    compile "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version";
+}
+repositories {
+    mavenCentral()
 }

BasicSample/app/src/androidTest/java/com/example/android/persistence/MainActivityTest.kt

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.persistence
+
+
+import android.arch.lifecycle.ViewModelProviders
+import android.support.test.espresso.Espresso
+import android.support.test.espresso.Espresso.onView
+import android.support.test.espresso.IdlingResource
+import android.support.test.espresso.action.ViewActions.click
+import android.support.test.espresso.assertion.ViewAssertions.matches
+import android.support.test.espresso.contrib.RecyclerViewActions
+import android.support.test.espresso.matcher.ViewMatchers.*
+import android.support.test.rule.ActivityTestRule
+import android.support.v7.widget.RecyclerView
+import android.view.View
+import com.example.android.persistence.viewmodel.ProductListViewModel
+import org.hamcrest.core.IsNot.not
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import java.util.concurrent.atomic.AtomicBoolean
+
+class MainActivityTest {
+
+    @Rule
+    var mActivityRule = ActivityTestRule(
+            MainActivity::class.java)
+
+    private val idlingRes = SimpleIdlingResource()
+
+    @Before
+    fun idlingResourceSetup() {
+
+        Espresso.registerIdlingResources(idlingRes)
+        // There's always
+        idlingRes.isIdleNow = false
+
+        val productListViewModel = productListViewModel
+
+        // Subscribe to ProductListViewModel's products list observable to figure out when the
+        // app is idle.
+        productListViewModel.products.observeForever { productEntities ->
+            if (productEntities != null) {
+                idlingRes.isIdleNow = true
+            }
+        }
+    }
+
+    @Test
+    fun clickOnFirstItem_opensComments() {
+        // When clicking on the first product
+        onView(withContentDescription(R.string.cd_products_list))
+                .perform(RecyclerViewActions.actionOnItemAtPosition<RecyclerView.ViewHolder>(0, click()))
+
+        // Then the second screen with the comments should appear.
+        onView(withContentDescription(R.string.cd_comments_list))
+                .check(matches(isDisplayed()))
+
+        // Then the second screen with the comments should appear.
+        onView(withContentDescription(R.string.cd_product_name))
+                .check(matches(not<View>(withText(""))))
+
+    }
+
+    /** Gets the ViewModel for the current fragment  */
+    private val productListViewModel: ProductListViewModel
+        get() {
+            val activity = mActivityRule.activity
+
+            val productListFragment = activity.supportFragmentManager
+                    .findFragmentByTag(ProductListFragment.TAG)
+
+            return ViewModelProviders.of(productListFragment)
+                    .get(ProductListViewModel::class.java)
+        }
+
+    private class SimpleIdlingResource : IdlingResource {
+
+        // written from main thread, read from any thread.
+        @Volatile private var mResourceCallback: IdlingResource.ResourceCallback? = null
+
+        private val mIsIdleNow = AtomicBoolean(true)
+
+        fun setIdleNow(idleNow: Boolean) {
+            mIsIdleNow.set(idleNow)
+            if (idleNow) {
+                mResourceCallback!!.onTransitionToIdle()
+            }
+        }
+
+        override fun getName(): String {
+            return "Simple idling resource"
+        }
+
+        override fun isIdleNow(): Boolean {
+            return mIsIdleNow.get()
+        }
+
+        override fun registerIdleTransitionCallback(callback: IdlingResource.ResourceCallback) {
+            mResourceCallback = callback
+        }
+    }
+}

BasicSample/app/src/main/java/com/example/android/persistence/MainActivity.kt

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.persistence
+
+import android.os.Bundle
+
+import android.arch.lifecycle.LifecycleActivity
+import com.example.android.persistence.model.Product
+
+class MainActivity : LifecycleActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.main_activity)
+
+        // Add product list fragment if this is first creation
+        if(savedInstanceState == null)
+            supportFragmentManager.beginTransaction()
+                    .add(R.id.fragment_container, ProductListFragment(), ProductListFragment.TAG).commit()
+    }
+
+    /** Shows the product detail fragment  */
+    fun show(product: Product) {
+        supportFragmentManager
+                .beginTransaction()
+                .addToBackStack("product")
+                .replace(R.id.fragment_container,
+                        ProductFragment.forProduct(product.id), null).commit()
+    }
+}