diff options
Diffstat (limited to 'robolectric_tests/src/com/android/launcher3')
-rw-r--r-- | robolectric_tests/src/com/android/launcher3/util/GridOccupancyTest.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/robolectric_tests/src/com/android/launcher3/util/GridOccupancyTest.java b/robolectric_tests/src/com/android/launcher3/util/GridOccupancyTest.java new file mode 100644 index 000000000..aa51ad20c --- /dev/null +++ b/robolectric_tests/src/com/android/launcher3/util/GridOccupancyTest.java @@ -0,0 +1,67 @@ +package com.android.launcher3.util; + +import org.junit.Test; +import org.junit.runner.RunWith; +import org.robolectric.RobolectricTestRunner; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; + +/** + * Unit tests for {@link GridOccupancy} + */ +@RunWith(RobolectricTestRunner.class) +public class GridOccupancyTest { + + @Test + public void testFindVacantCell() { + GridOccupancy grid = initGrid(4, + 1, 1, 1, 0, 0, + 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, + 1, 1, 0, 0, 0 + ); + + int[] vacant = new int[2]; + assertTrue(grid.findVacantCell(vacant, 2, 2)); + assertEquals(vacant[0], 0); + assertEquals(vacant[1], 1); + + assertTrue(grid.findVacantCell(vacant, 3, 2)); + assertEquals(vacant[0], 2); + assertEquals(vacant[1], 2); + + assertFalse(grid.findVacantCell(vacant, 3, 3)); + } + + @Test + public void testIsRegionVacant() { + GridOccupancy grid = initGrid(4, + 1, 1, 1, 0, 0, + 0, 0, 1, 1, 0, + 0, 0, 0, 0, 0, + 1, 1, 0, 0, 0 + ); + + assertTrue(grid.isRegionVacant(4, 0, 1, 4)); + assertTrue(grid.isRegionVacant(0, 1, 2, 2)); + assertTrue(grid.isRegionVacant(2, 2, 3, 2)); + + assertFalse(grid.isRegionVacant(3, 0, 2, 4)); + assertFalse(grid.isRegionVacant(0, 0, 2, 1)); + } + + private GridOccupancy initGrid(int rows, int... cells) { + int cols = cells.length / rows; + int i = 0; + GridOccupancy grid = new GridOccupancy(cols, rows); + for (int y = 0; y < rows; y++) { + for (int x = 0; x < cols; x++) { + grid.cells[x][y] = cells[i] != 0; + i++; + } + } + return grid; + } +} |