Version 1.5.6

dart/editor/tools/plugins/com.google.dart.engine_test/src/com/google/dart/engine/internal/index/file/IntToIntSetMapTest.java

+/*
+ * Copyright (c) 2014, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
+ * 
+ * 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.google.dart.engine.internal.index.file;
+
+import junit.framework.TestCase;
+
+import static org.fest.assertions.Assertions.assertThat;
+
+public class IntToIntSetMapTest extends TestCase {
+  private static int HASH_32_KEY_1 = 0x60000;
+  private static int HASH_32_KEY_2 = 0x90000;
+  private static int HASH_32_KEY_3 = 0x100000;
+  private IntToIntSetMap map = new IntToIntSetMap(16, 0.75f);
+
+  public void test_add_duplicate() throws Exception {
+    map.add(HASH_32_KEY_1, 1);
+    map.add(HASH_32_KEY_1, 1);
+    map.add(HASH_32_KEY_1, 10);
+    assertThat(map.get(HASH_32_KEY_1)).containsOnly(1, 10);
+  }
+
+  public void test_add_hasCollision() throws Exception {
+    map = new IntToIntSetMap(33, 0.75f);
+    map.add(HASH_32_KEY_1, 10);
+    map.add(HASH_32_KEY_1, 11);
+    map.add(HASH_32_KEY_2, 20);
+    map.add(HASH_32_KEY_2, 21);
+    map.add(HASH_32_KEY_2, 22);
+    map.add(HASH_32_KEY_3, 30);
+    assertThat(map.get(HASH_32_KEY_1)).containsOnly(10, 11);
+    assertThat(map.get(HASH_32_KEY_2)).containsOnly(20, 21, 22);
+    assertThat(map.get(HASH_32_KEY_3)).containsOnly(30);
+  }
+
+  public void test_add_negativeKey() throws Exception {
+    try {
+      map.add(-1, 10);
+      fail();
+    } catch (IllegalArgumentException e) {
+    }
+  }
+
+  public void test_add_noCollision() throws Exception {
+    map.add(HASH_32_KEY_1, 1);
+    map.add(HASH_32_KEY_1, 2);
+    map.add(HASH_32_KEY_1, 3);
+    assertThat(map.get(HASH_32_KEY_1)).containsOnly(1, 2, 3);
+  }
+
+  public void test_clear() throws Exception {
+    map.add(HASH_32_KEY_1, 1);
+    assertEquals(1, map.size());
+    // clear
+    map.clear();
+    assertEquals(0, map.size());
+  }
+
+  public void test_get_no() throws Exception {
+    assertThat(map.get(HASH_32_KEY_1)).isEmpty();
+  }
+
+  public void test_size() throws Exception {
+    // empty
+    assertEquals(0, map.size());
+    // 1 key, 1 value
+    map.add(HASH_32_KEY_1, 1);
+    assertEquals(1, map.size());
+    // 1 key, 2 values
+    map.add(HASH_32_KEY_1, 2);
+    assertEquals(1, map.size());
+    // 2 keys
+    map.add(HASH_32_KEY_2, 3);
+    assertEquals(2, map.size());
+  }
+
+  public void test_stress() throws Exception {
+    int count = 1000;
+    // fill map
+    for (int i = 0; i < count; i++) {
+      int key = i << 16;
+      map.add(key, i * 10);
+      map.add(key, i * 100);
+      map.add(key, i * 1000);
+    }
+    // check map
+    assertEquals(count, map.size());
+    for (int i = 0; i < count; i++) {
+      int key = i << 16;
+      assertThat(map.get(key)).containsOnly(i * 10, i * 100, i * 1000);
+    }
+  }
+}