Moving various runnables in LauncherModel to individual tasks

> Adding tests for some of the runnable

Change-Id: I1a315d38878857df3371f0e69d622a41fc3b081a

tests/src/com/android/launcher3/model/AddWorkspaceItemsTaskTest.java

@@ -0,0 +1,190 @@
+package com.android.launcher3.model;
+
+import android.content.ComponentName;
+import android.content.ContentProviderOperation;
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.Intent;
+import android.graphics.Rect;
+import android.net.Uri;
+import android.util.Pair;
+
+import com.android.launcher3.ItemInfo;
+import com.android.launcher3.LauncherSettings;
+import com.android.launcher3.ShortcutInfo;
+import com.android.launcher3.config.ProviderConfig;
+import com.android.launcher3.util.GridOccupancy;
+import com.android.launcher3.util.LongArrayMap;
+
+import org.mockito.ArgumentCaptor;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+/**
+ * Tests for {@link AddWorkspaceItemsTask}
+ */
+public class AddWorkspaceItemsTaskTest extends BaseModelUpdateTaskTestCase {
+
+    private final ComponentName mComponent1 = new ComponentName("a", "b");
+    private final ComponentName mComponent2 = new ComponentName("b", "b");
+
+    private ArrayList<Long> existingScreens;
+    private ArrayList<Long> newScreens;
+    private LongArrayMap<GridOccupancy> screenOccupancy;
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        existingScreens = new ArrayList<>();
+        screenOccupancy = new LongArrayMap<>();
+        newScreens = new ArrayList<>();
+
+        idp.numColumns = 5;
+        idp.numRows = 5;
+    }
+
+    private <T extends ItemInfo> AddWorkspaceItemsTask newTask(T... items) {
+        return new AddWorkspaceItemsTask(new ArrayList<>(Arrays.asList(items))) {
+
+            @Override
+            protected void addItemToDatabase(Context context, ItemInfo item,
+                    long screenId, int[] pos) {
+                item.screenId = screenId;
+                item.cellX = pos[0];
+                item.cellY = pos[1];
+            }
+
+            @Override
+            protected void updateScreens(Context context, ArrayList<Long> workspaceScreens) { }
+        };
+    }
+
+    public void testFindSpaceForItem_prefers_second() {
+        // First screen has only one hole of size 1
+        int nextId = setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+
+        // Second screen has 2 holes of sizes 3x2 and 2x3
+        setupWorkspaceWithHoles(nextId, 2, new Rect(2, 0, 5, 2), new Rect(0, 2, 2, 5));
+
+        Pair<Long, int[]> spaceFound = newTask()
+                .findSpaceForItem(appState, bgDataModel, existingScreens, newScreens, 1, 1);
+        assertEquals(2L, (long) spaceFound.first);
+        assertTrue(screenOccupancy.get(spaceFound.first)
+                .isRegionVacant(spaceFound.second[0], spaceFound.second[1], 1, 1));
+
+        // Find a larger space
+        spaceFound = newTask()
+                .findSpaceForItem(appState, bgDataModel, existingScreens, newScreens, 2, 3);
+        assertEquals(2L, (long) spaceFound.first);
+        assertTrue(screenOccupancy.get(spaceFound.first)
+                .isRegionVacant(spaceFound.second[0], spaceFound.second[1], 2, 3));
+    }
+
+    public void testFindSpaceForItem_adds_new_screen() throws Exception {
+        // First screen has 2 holes of sizes 3x2 and 2x3
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 0, 5, 2), new Rect(0, 2, 2, 5));
+        commitScreensToDb();
+
+        when(appState.getContext()).thenReturn(getMockContext());
+
+        ArrayList<Long> oldScreens = new ArrayList<>(existingScreens);
+        Pair<Long, int[]> spaceFound = newTask()
+                .findSpaceForItem(appState, bgDataModel, existingScreens, newScreens, 3, 3);
+        assertFalse(oldScreens.contains(spaceFound.first));
+        assertTrue(newScreens.contains(spaceFound.first));
+    }
+
+    public void testAddItem_existing_item_ignored() throws Exception {
+        ShortcutInfo info = new ShortcutInfo();
+        info.intent = new Intent().setComponent(mComponent1);
+
+        // Setup a screen with a hole
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+        commitScreensToDb();
+
+        when(appState.getContext()).thenReturn(getMockContext());
+
+        // Nothing was added
+        assertTrue(executeTaskForTest(newTask(info)).isEmpty());
+    }
+
+    public void testAddItem_some_items_added() throws Exception {
+        ShortcutInfo info = new ShortcutInfo();
+        info.intent = new Intent().setComponent(mComponent1);
+
+        ShortcutInfo info2 = new ShortcutInfo();
+        info2.intent = new Intent().setComponent(mComponent2);
+
+        // Setup a screen with a hole
+        setupWorkspaceWithHoles(1, 1, new Rect(2, 2, 3, 3));
+        commitScreensToDb();
+
+        when(appState.getContext()).thenReturn(getMockContext());
+
+        executeTaskForTest(newTask(info, info2)).get(0).run();
+        ArgumentCaptor<ArrayList> notAnimated = ArgumentCaptor.forClass(ArrayList.class);
+        ArgumentCaptor<ArrayList> animated = ArgumentCaptor.forClass(ArrayList.class);
+
+        // only info2 should be added because info was already added to the workspace
+        // in setupWorkspaceWithHoles()
+        verify(callbacks).bindAppsAdded(any(ArrayList.class), notAnimated.capture(),
+                animated.capture(), any(ArrayList.class));
+        assertTrue(notAnimated.getValue().isEmpty());
+
+        assertEquals(1, animated.getValue().size());
+        assertTrue(animated.getValue().contains(info2));
+    }
+
+    private int setupWorkspaceWithHoles(int startId, long screenId, Rect... holes) {
+        GridOccupancy occupancy = new GridOccupancy(idp.numColumns, idp.numRows);
+        occupancy.markCells(0, 0, idp.numColumns, idp.numRows, true);
+        for (Rect r : holes) {
+            occupancy.markCells(r, false);
+        }
+
+        existingScreens.add(screenId);
+        screenOccupancy.append(screenId, occupancy);
+
+        for (int x = 0; x < idp.numColumns; x++) {
+            for (int y = 0; y < idp.numRows; y++) {
+                if (!occupancy.cells[x][y]) {
+                    continue;
+                }
+
+                ShortcutInfo info = new ShortcutInfo();
+                info.intent = new Intent().setComponent(mComponent1);
+                info.id = startId++;
+                info.screenId = screenId;
+                info.cellX = x;
+                info.cellY = y;
+                info.container = LauncherSettings.Favorites.CONTAINER_DESKTOP;
+                bgDataModel.addItem(info, false);
+            }
+        }
+        return startId;
+    }
+
+    private void commitScreensToDb() throws Exception {
+        LauncherSettings.Settings.call(getMockContentResolver(),
+                LauncherSettings.Settings.METHOD_CREATE_EMPTY_DB);
+
+        Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI;
+        ArrayList<ContentProviderOperation> ops = new ArrayList<>();
+        // Clear the table
+        ops.add(ContentProviderOperation.newDelete(uri).build());
+        int count = existingScreens.size();
+        for (int i = 0; i < count; i++) {
+            ContentValues v = new ContentValues();
+            long screenId = existingScreens.get(i);
+            v.put(LauncherSettings.WorkspaceScreens._ID, screenId);
+            v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
+            ops.add(ContentProviderOperation.newInsert(uri).withValues(v).build());
+        }
+        getMockContentResolver().applyBatch(ProviderConfig.AUTHORITY, ops);
+    }
+}