Merge pull request #130 from kikuchy/add-contributers-test

Add ContributorsRepository Tests

app/src/main/java/io/github/droidkaigi/confsched2017/repository/contributors/ContributorsLocalDataSource.java

@@ -12,7 +12,7 @@
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.schedulers.Schedulers;
 
-final class ContributorsLocalDataSource {
+public class ContributorsLocalDataSource {
 
     private final OrmaDatabase orma;
 
@@ -21,7 +21,7 @@ final class ContributorsLocalDataSource {
         this.orma = orma;
     }
 
-    Single<List<Contributor>> findAll() {
+    public Single<List<Contributor>> findAll() {
         return orma.selectFromContributor()
                 .executeAsObservable()
                 .toList()

app/src/test/java/io/github/droidkaigi/confsched2017/repository/contributors/ContributorsRepositoryTest.kt

@@ -0,0 +1,51 @@
+package io.github.droidkaigi.confsched2017.repository.contributors
+
+import com.sys1yagi.kmockito.invoked
+import com.sys1yagi.kmockito.mock
+import com.sys1yagi.kmockito.verify
+import io.github.droidkaigi.confsched2017.model.Contributor
+import io.reactivex.Single
+import org.junit.Test
+import org.mockito.Mockito
+
+class ContributorsRepositoryTest {
+
+    private val localDataSource = mock<ContributorsLocalDataSource>()
+    private val remoteDataSource = mock<ContributorsRemoteDataSource>()
+
+    private val repository = ContributorsRepository(localDataSource, remoteDataSource)
+
+    @Test
+    @Throws(Exception::class)
+    fun findAllFromEmptyRepository() {
+        localDataSource.findAll().invoked.thenReturn(Single.just(listOf()))
+        remoteDataSource.findAll().invoked.thenReturn(Single.just(listOf()))
+        repository.findAll().test().assertOf { check ->
+            check.assertNoErrors()
+            check.assertValue(listOf())
+        }
+    }
+
+    @Test
+    @Throws(Exception::class)
+    fun updateLocalWhenRemoteReturns() {
+        val contributors = listOf(
+                Contributor().apply {
+                    name = "Alice"
+                },
+                Contributor().apply {
+                    name = "Bob"
+                },
+                Contributor().apply {
+                    name = "Charlie"
+                }
+        )
+        localDataSource.findAll().invoked.thenReturn(Single.just(listOf()))
+        remoteDataSource.findAll().invoked.thenReturn(Single.just(contributors))
+        repository.findAll().test().assertOf { check ->
+            check.assertNoErrors()
+            localDataSource.verify(Mockito.times(1)).updateAllAsync(contributors)
+        }
+    }
+
+}