File Doc Category Size Date Package
GroupingListAdapterTests.java API Doc Android 5.1 API 12357 Thu Mar 12 22:22:48 GMT 2015 com.android.common.widget

GroupingListAdapterTests

java.lang.Object
- android.test.AndroidTestCase

public class GroupingListAdapterTests extends android.test.AndroidTestCase

Tests for {@link GroupingListAdapter}. Running all tests: adb shell am instrument -e class com.android.common.widget.GroupingListAdapterTests \ -w com.android.common.tests/android.test.InstrumentationTestRunner

Fields Summary
private static final String[]
PROJECTION
private static final int
GROUPING_COLUMN_INDEX
private android.database.MatrixCursor
mCursor
private long
mNextId
private GroupingListAdapter
mAdapter
Constructors Summary
Methods Summary
private void assertPositionMetadata(int position, int itemType, boolean isExpanded, int cursorPosition)
GroupingListAdapter.PositionMetadata metadata = new GroupingListAdapter.PositionMetadata(); mAdapter.obtainPositionMetadata(metadata, position); assertEquals(itemType, metadata.itemType); if (metadata.itemType == ITEM_TYPE_GROUP_HEADER) { assertEquals(isExpanded, metadata.isExpanded); } assertEquals(cursorPosition, metadata.cursorPosition);
private void buildCursor(java.lang.String numbers)
mCursor = new MatrixCursor(PROJECTION); mNextId = 1; for (String number : numbers) { mCursor.addRow(new Object[]{mNextId, number}); mNextId++; }
public void testGroupDescriptorArrayGrowth()
String[] numbers = new String[500]; for (int i = 0; i < numbers.length; i++) { // Make groups of 2 numbers[i] = String.valueOf((i / 2) * 2); } buildCursor(numbers); mAdapter.changeCursor(mCursor); assertEquals(250, mAdapter.getCount());
public void testGroupingWithCollapsedGroupAtTheBeginning()
buildCursor("1", "1", "2"); mAdapter.changeCursor(mCursor); assertEquals(2, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_GROUP_HEADER, false, 0); assertPositionMetadata(1, ITEM_TYPE_STANDALONE, false, 2);
public void testGroupingWithCollapsedGroupAtTheEnd()
buildCursor("1", "2", "3", "3", "3"); mAdapter.changeCursor(mCursor); assertEquals(3, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_STANDALONE, false, 1); assertPositionMetadata(2, ITEM_TYPE_GROUP_HEADER, false, 2);
public void testGroupingWithCollapsedGroupInTheMiddle()
buildCursor("1", "2", "2", "2", "3"); mAdapter.changeCursor(mCursor); assertEquals(3, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, false, 1); assertPositionMetadata(2, ITEM_TYPE_STANDALONE, false, 4);
public void testGroupingWithExpandCollapseCycleAtTheBeginning()
buildCursor("1", "1", "2"); mAdapter.changeCursor(mCursor); mAdapter.toggleGroup(0); mAdapter.toggleGroup(0); assertEquals(2, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_GROUP_HEADER, false, 0); assertPositionMetadata(1, ITEM_TYPE_STANDALONE, false, 2);
public void testGroupingWithExpandedGroupAtTheBeginning()
buildCursor("1", "1", "2"); mAdapter.changeCursor(mCursor); mAdapter.toggleGroup(0); assertEquals(4, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_GROUP_HEADER, true, 0); assertPositionMetadata(1, ITEM_TYPE_IN_GROUP, false, 0); assertPositionMetadata(2, ITEM_TYPE_IN_GROUP, false, 1); assertPositionMetadata(3, ITEM_TYPE_STANDALONE, false, 2);
public void testGroupingWithExpandedGroupAtTheEnd()
buildCursor("1", "2", "3", "3", "3"); mAdapter.changeCursor(mCursor); mAdapter.toggleGroup(2); assertEquals(6, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_STANDALONE, false, 1); assertPositionMetadata(2, ITEM_TYPE_GROUP_HEADER, true, 2); assertPositionMetadata(3, ITEM_TYPE_IN_GROUP, false, 2); assertPositionMetadata(4, ITEM_TYPE_IN_GROUP, false, 3); assertPositionMetadata(5, ITEM_TYPE_IN_GROUP, false, 4);
public void testGroupingWithExpandedGroupInTheMiddle()
buildCursor("1", "2", "2", "2", "3"); mAdapter.changeCursor(mCursor); mAdapter.toggleGroup(1); assertEquals(6, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, true, 1); assertPositionMetadata(2, ITEM_TYPE_IN_GROUP, false, 1); assertPositionMetadata(3, ITEM_TYPE_IN_GROUP, false, 2); assertPositionMetadata(4, ITEM_TYPE_IN_GROUP, false, 3); assertPositionMetadata(5, ITEM_TYPE_STANDALONE, false, 4);
public void testGroupingWithMultipleCollapsedGroups()
buildCursor("1", "2", "2", "3", "4", "4", "5", "5", "6"); mAdapter.changeCursor(mCursor); assertEquals(6, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, false, 1); assertPositionMetadata(2, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(3, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(4, ITEM_TYPE_GROUP_HEADER, false, 6); assertPositionMetadata(5, ITEM_TYPE_STANDALONE, false, 8);
public void testGroupingWithMultipleExpandedGroups()
buildCursor("1", "2", "2", "3", "4", "4", "5", "5", "6"); mAdapter.changeCursor(mCursor); mAdapter.toggleGroup(1); // Note that expanding the group of 2's shifted the group of 5's down from the // 4th to the 6th position mAdapter.toggleGroup(6); assertEquals(10, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, true, 1); assertPositionMetadata(2, ITEM_TYPE_IN_GROUP, false, 1); assertPositionMetadata(3, ITEM_TYPE_IN_GROUP, false, 2); assertPositionMetadata(4, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(5, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(6, ITEM_TYPE_GROUP_HEADER, true, 6); assertPositionMetadata(7, ITEM_TYPE_IN_GROUP, false, 6); assertPositionMetadata(8, ITEM_TYPE_IN_GROUP, false, 7); assertPositionMetadata(9, ITEM_TYPE_STANDALONE, false, 8);
public void testGroupingWithoutGroups()
buildCursor("1", "2", "3"); mAdapter.changeCursor(mCursor); assertEquals(3, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_STANDALONE, false, 1); assertPositionMetadata(2, ITEM_TYPE_STANDALONE, false, 2);
public void testPositionCache()
buildCursor("1", "2", "2", "3", "4", "4", "5", "5", "6"); mAdapter.changeCursor(mCursor); // First pass - building up cache assertEquals(6, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, false, 1); assertPositionMetadata(2, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(3, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(4, ITEM_TYPE_GROUP_HEADER, false, 6); assertPositionMetadata(5, ITEM_TYPE_STANDALONE, false, 8); // Second pass - using cache assertEquals(6, mAdapter.getCount()); assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, false, 1); assertPositionMetadata(2, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(3, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(4, ITEM_TYPE_GROUP_HEADER, false, 6); assertPositionMetadata(5, ITEM_TYPE_STANDALONE, false, 8); // Invalidate cache by expanding a group mAdapter.toggleGroup(1); // First pass - building up cache assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, true, 1); assertPositionMetadata(2, ITEM_TYPE_IN_GROUP, false, 1); assertPositionMetadata(3, ITEM_TYPE_IN_GROUP, false, 2); assertPositionMetadata(4, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(5, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(6, ITEM_TYPE_GROUP_HEADER, false, 6); assertPositionMetadata(7, ITEM_TYPE_STANDALONE, false, 8); // Second pass - using cache assertPositionMetadata(0, ITEM_TYPE_STANDALONE, false, 0); assertPositionMetadata(1, ITEM_TYPE_GROUP_HEADER, true, 1); assertPositionMetadata(2, ITEM_TYPE_IN_GROUP, false, 1); assertPositionMetadata(3, ITEM_TYPE_IN_GROUP, false, 2); assertPositionMetadata(4, ITEM_TYPE_STANDALONE, false, 3); assertPositionMetadata(5, ITEM_TYPE_GROUP_HEADER, false, 4); assertPositionMetadata(6, ITEM_TYPE_GROUP_HEADER, false, 6); assertPositionMetadata(7, ITEM_TYPE_STANDALONE, false, 8);