@ohos.util.HashMap

@ohos.util.HashMap.get

官方API文档

测试用例 1: 测试HashMap容器get接口

function test_get(loopCount: number): string {
  // test: @ohos.util.HashMap.get
  // desc: 测试HashMap容器get接口
  const test_id = 1;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();
  for (let i = 0; i < 50000; i++) {
    hashMap.set(i, `Value${i}`);
  }

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.get(i);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 1	Huawei Phone	0.00012 ms

---

@ohos.util.HashMap.set

官方API文档

测试用例 2: 测试HashMap容器set接口

function test_set(loopCount: number): string {
  // test: @ohos.util.HashMap.set
  // desc: 测试HashMap容器set接口
  const test_id = 2;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.set(i, `Value${i}`);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 2	Huawei Phone	0.00066 ms

---

@ohos.util.HashMap.hasKey

官方API文档

测试用例 3: 测试在最优情况下（查找存在的第一个键）HashMap容器的hasKey接口，HashMap长度为50000

function test_hasKeyBest(loopCount: number): string {
  // test: @ohos.util.HashMap.hasKey
  // desc: 测试在最优情况下（查找存在的第一个键）HashMap容器的hasKey接口，HashMap长度为50000
  const test_id = 3;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();
  for (let i = 0; i < 50000; i++) {
    hashMap.set(i, `Value${i}`);
  }

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.hasKey(0);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 3	Huawei Phone	0.0001 ms

---

测试用例 4: 测试在最坏情况下（查找不存在的键）HashMap容器的hasKey接口，HashMap长度为50000

function test_hasKeyWorst(loopCount: number): string {
  // test: @ohos.util.HashMap.hasKey
  // desc: 测试在最坏情况下（查找不存在的键）HashMap容器的hasKey接口，HashMap长度为50000
  const test_id = 4;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();
  for (let i = 0; i < 50000; i++) {
    hashMap.set(i, `Value${i}`);
  }

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.hasKey(50000);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 4	Huawei Phone	0.00008 ms

---

@ohos.util.HashMap.hasValue

官方API文档

测试用例 5: 测试在最优情况下（查找存在的第一个值）HashMap容器的hasValue接口，HashMap长度为50000

function test_hasValueBest(loopCount: number): string {
  // test: @ohos.util.HashMap.hasValue
  // desc: 测试在最优情况下（查找存在的第一个值）HashMap容器的hasValue接口，HashMap长度为50000
  const test_id = 5;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();
  for (let i = 0; i < 50000; i++) {
    hashMap.set(i, `Value${i}`);
  }

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.hasValue(`Value0`);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.getTime() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 5	Huawei Phone	0.00012 ms

---

测试用例 6: 测试在最坏情况下（查找不存在的值）HashMap容器的hasValue接口，HashMap长度为50000

function test_hasValueWorst(loopCount: number): string {
  // test: @ohos.util.HashMap.hasValue
  // desc: 测试在最坏情况下（查找不存在的值）HashMap容器的hasValue接口，HashMap长度为50000
  const test_id = 6;

  // prepare: setup objects to test
  let hashMap = new HashMap<number, string>();
  for (let i = 0; i < 50000; i++) {
    hashMap.set(i, `Value${i}`);
  }

  // test
  const startTime = new Date();
  for (let i = 0; i < loopCount; i++) {
    hashMap.hasValue(`NonExistentValue`);
  }
  const endTime = new Date();

  // finish
  const executionTime = endTime.get

Time() - startTime.getTime();
  const averageTime = executionTime / loopCount;
  return `!${test_id}: ${averageTime} ms`;
}

测试结果

测试用例	测试平台	运行时间
测试用例 6	Huawei Phone	0.01876 ms

---

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