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Diffstat (limited to 'robolectric_tests/src/com/android/launcher3/util/IntSetTest.java')
-rw-r--r-- | robolectric_tests/src/com/android/launcher3/util/IntSetTest.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java new file mode 100644 index 000000000..faec380af --- /dev/null +++ b/robolectric_tests/src/com/android/launcher3/util/IntSetTest.java @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2018 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package com.android.launcher3.util; + +import static com.google.common.truth.Truth.assertThat; + +import org.junit.Test; +import org.junit.runner.RunWith; + +import org.robolectric.RobolectricTestRunner; +import org.robolectric.annotation.Config; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertTrue; + +/** + * Robolectric unit tests for {@link IntSet} + */ +@RunWith(RobolectricTestRunner.class) +@Config(sdk = 26) +public class IntSetTest { + + @Test + public void shouldBeEmptyInitially() { + IntSet set = new IntSet(); + assertThat(set.size()).isEqualTo(0); + } + + @Test + public void oneElementSet() { + IntSet set = new IntSet(); + set.add(2); + assertThat(set.size()).isEqualTo(1); + assertTrue(set.contains(2)); + assertFalse(set.contains(1)); + } + + + @Test + public void twoElementSet() { + IntSet set = new IntSet(); + set.add(2); + set.add(1); + assertThat(set.size()).isEqualTo(2); + assertTrue(set.contains(2)); + assertTrue(set.contains(1)); + } + + @Test + public void threeElementSet() { + IntSet set = new IntSet(); + set.add(2); + set.add(1); + set.add(10); + assertThat(set.size()).isEqualTo(3); + assertEquals("1, 2, 10", set.mArray.toConcatString()); + } + + + @Test + public void duplicateEntries() { + IntSet set = new IntSet(); + set.add(2); + set.add(2); + assertEquals(1, set.size()); + } +} |