Test the MBIndexManager

app-test/src/test/kotlin/org/bspeice/minimalbible/activity/search/MBIndexManagerSpek.kt

@@ -0,0 +1,78 @@
+package org.bspeice.minimalbible.activity.search
+
+import org.jetbrains.spek.api.Spek
+import org.mockito.Mockito
+import org.crosswire.jsword.index.IndexManager
+import org.crosswire.jsword.book.Book
+import org.crosswire.jsword.index.IndexStatus
+import java.util.concurrent.atomic.AtomicBoolean
+import java.util.concurrent.atomic.AtomicReference
+import kotlin.test.assertEquals
+import com.jayway.awaitility.Awaitility
+import java.util.concurrent.TimeUnit
+
+/**
+ * Created by bspeice on 2/16/15.
+ */
+class MBIndexManagerSpek() : Spek() {{
+
+    given("a mock IndexManager, Book, and real MBIndexManager") {
+        val returnDelay: Long = 1000
+        val mockIndex = Mockito.mock(javaClass<IndexManager>())
+        val mockBook = Mockito.mock(javaClass<Book>())
+        val indexManager = MBIndexManager(mockIndex)
+
+        val firstStatus = IndexStatus.UNDONE
+        val secondStatus = IndexStatus.DONE
+
+        // We sleep the first response to give us time to actually subscribe
+        Mockito.`when`(mockBook.getIndexStatus())
+                .thenAnswer { Thread.sleep(returnDelay); firstStatus }
+                .thenReturn(secondStatus)
+
+        on("attempting to create the index") {
+            val firstNext = AtomicReference<IndexStatus>()
+            val secondNext = AtomicReference<IndexStatus>()
+            val completedReference = AtomicBoolean(false)
+
+            val subject = indexManager.buildIndex(mockBook)
+
+            subject.subscribe({
+                if (firstNext.get() == null)
+                    firstNext.set(it)
+                else
+                    secondNext.set(it)
+            },
+                    {},
+                    { completedReference.set(true) })
+
+            it("should fire an onComplete so we can continue further validation") {
+                Awaitility.waitAtMost(returnDelay * 2, TimeUnit.MILLISECONDS)
+                        .untilTrue(completedReference)
+            }
+
+            it("should fire the correct first status") {
+                assertEquals(firstStatus, firstNext.get())
+            }
+
+            it("should fire the correct second status") {
+                assertEquals(secondStatus, secondNext.get())
+            }
+        }
+    }
+
+    given("a mock IndexManager, Book, and real MBIndexManager") {
+        val indexManager = Mockito.mock(javaClass<IndexManager>())
+        val book = Mockito.mock(javaClass<Book>())
+        val mbIndex = MBIndexManager(indexManager)
+
+        on("trying to remove a book's index") {
+            mbIndex.removeIndex(book)
+
+            it("should call the IndexManager.deleteIndex() function") {
+                Mockito.verify(indexManager, Mockito.times(1)) deleteIndex book
+            }
+        }
+    }
+}
+}

app/src/main/kotlin/org/bspeice/minimalbible/activity/search/MBIndexManager.kt

@@ -5,27 +5,34 @@ import org.crosswire.jsword.book.Book
 import android.util.Log
 import rx.schedulers.Schedulers
 import rx.Observable
+import rx.subjects.PublishSubject
+import org.crosswire.jsword.index.IndexStatus
 
 /**
  * There's already an IndexManager, that's why the funky name
  */
 class MBIndexManager(val indexManager: IndexManager) {
 
-    fun buildIndex(b: Book) {
+    /**
+     * Do the hard work of actually building the book index.
+     * Returns a PublishSubject<> that completes when the
+     * index is complete. Also is nice enough to broadcast
+     * what work is being done when.
+     */
+    fun buildIndex(b: Book): PublishSubject<IndexStatus> {
+        val indexStatus: PublishSubject<IndexStatus> = PublishSubject.create();
         Observable.just(b)
                 .observeOn(Schedulers.computation())
                 .subscribe({
-                    try {
-                        Log.e("MBIndexManager", "Beginning index status: ${b.getIndexStatus()}")
+                    indexStatus.onNext(b.getIndexStatus())
+
                     indexManager scheduleIndexCreation b
-                        Log.e("MBIndexManager", "Ending index status: ${b.getIndexStatus()}")
-                    } catch (e: Exception) {
-                        Log.e("MBIndexManager", "Exception building index: ${e}", e)
-                    }
-                }, {
-                    Log.e("MBIndexManager", "Exception building index: $it", it)
-                })
-        Log.d("MBIndexManager", "Building index for ${b.getInitials()}")
+
+                    indexStatus.onNext(b.getIndexStatus())
+                    indexStatus.onCompleted()
+                }, { Log.e("MBIndexManager", "Exception building index: $it", it) })
+
+        return indexStatus
     }
 
     fun removeIndex(b: Book) = indexManager.deleteIndex(b)