- Assert.AreEqual 与 Assert.AreNotEqual
- Assert.AreApproximatelyEqual 与 Assert.AreNotApproximatelyEqual
- Assert.IsTrue 与 Assert.IsFalse
- Assert.IsNull 与 Assert.IsNotNull
检测是否违背指定的相等或不相等原则
public void TestAssertEqual()
{
Assert.AreEqual("123", "456", "断言检测违背相等原则");
Assert.AreNotEqual("123", "123", "断言检测违背不相等原则");
}
检测是否约等于或不等于是否成立
public void TestAreApproximatelyEqual()
{
// 默认允许误差小于 0.00001f,这里我们制定误差为 0.01f
Assert.AreApproximatelyEqual(0.9f, 0.91f, 0.01f, "断言检测 约等于 不成立");
Assert.AreNotApproximatelyEqual(0.9f, 0.9000001f, 0.01f, "断言检测 不约等于 不成立");
}
检测数值为True或False
public void TestIsTrue()
{
Assert.IsTrue(1 > 2, "违背结果为真的原则");
Assert.IsTrue(Testbool());
Assert.IsFalse(1 < 2, "违背结果为假的原则");
}
public bool Testbool()
{
return false;
}
检测是否为Null
public void TestIsNull()
{
Student student1 = new Student();
Assert.IsNull(student1,"检测结果值不为null");
student1 = null;
Assert.IsNotNull<Student>(student1,"检测结果为null");
}
在断言中也可以自定义比较规则,代码如下
public class Student
{
public string name;
public int number;
public int age;
}
public void TestCustomEqualityComparer()
{
Student S1 = new Student() { age = 1 };
Student S2 = new Student() { age = 2 };
Assert.AreEqual(S1, S2, "自定义比较结果为不相等", new CustomEqualityComparer<Student>((s1, s2) => { return s1.age == s2.age; }));
}
比较的部分在于继承 IEqualityComparer 重新实现我们要比较的规则
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断言中还有一个特性就是否阻止触发条件以后的代码块执行,使用对用的API为Assert.raiseExceptions,默认值为false
效果如下:
Assert.raiseExceptions = false;
public void TestRaiseExceptions()
{
Assert.raiseExceptions = false;
Assert.IsTrue(1 > 2);
Assert.IsTrue(1 > 2, "自定义输出");
Debug.LogError(new string('*', 20));
Debug.Log("执行");
}
Assert.raiseExceptions = true;
public void TestRaiseExceptions()
{
Assert.raiseExceptions = true;
Assert.IsTrue(1 > 2);
Assert.IsTrue(1 > 2, "自定义输出");
Debug.LogError(new string('*', 20));
Debug.Log("执行");
}