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Added in API level 1

TestMethod

public class TestMethod
extends Object

java.lang.Object
   ↳ android.test.suitebuilder.TestMethod


代表要运行的测试。 可以在不实例化TestCase或甚至加载类的情况下构建。

Summary

Public constructors

TestMethod(方法 method, Class<? extends TestCase> enclosingClass)
TestMethod(String methodName, Class<? extends TestCase> enclosingClass)
TestMethod(TestCase testCase)

Public methods

TestCase createTest()
boolean equals(Object o)

指示其他某个对象是否“等于”这一个。

<T extends Annotation> T getAnnotation(Class<T> annotationClass)
Class<? extends TestCase> getEnclosingClass()
String getEnclosingClassname()
String getName()
int hashCode()

返回对象的哈希码值。

String toString()

返回对象的字符串表示形式。

Inherited methods

From class java.lang.Object

Public constructors

TestMethod

Added in API level 1
TestMethod (方法 method, 
                Class<? extends TestCase> enclosingClass)

Parameters
method 方法
enclosingClass Class

TestMethod

Added in API level 3
TestMethod (String methodName, 
                Class<? extends TestCase> enclosingClass)

Parameters
methodName String
enclosingClass Class

TestMethod

Added in API level 3
TestMethod (TestCase testCase)

Parameters
testCase TestCase

Public methods

equals

Added in API level 1
boolean equals (Object o)

指示其他某个对象是否“等于”这一个。

equals方法在非空对象引用上实现等价关系:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

Objectequals方法实现了对象上最有区别的可能等价关系; 也就是说,对于任何非空参考值xy ,当且仅当xy指向同一对象( x == y的值为true )时,此方法返回true

请注意,无论何时覆盖此方法,通常都必须覆盖 hashCode方法,以便维护 hashCode方法的一般合约,该方法声明等同对象必须具有相同的哈希代码。

Parameters
o Object: the reference object with which to compare.
Returns
boolean true if this object is the same as the obj argument; false otherwise.

getAnnotation

Added in API level 1
T getAnnotation (Class<T> annotationClass)

Parameters
annotationClass Class
Returns
T

getEnclosingClass

Added in API level 1
Class<? extends TestCase> getEnclosingClass ()

Returns
Class<? extends TestCase>

getEnclosingClassname

Added in API level 1
String getEnclosingClassname ()

Returns
String

getName

Added in API level 1
String getName ()

Returns
String

hashCode

Added in API level 1
int hashCode ()

返回对象的哈希码值。 为了散列表的好处而支持此方法,例如由HashMap提供的HashMap

一般合同 hashCode是:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

尽可能合理实用,类Object定义的hashCode方法确实为不同的对象返回不同的整数。 (这通常通过将对象的内部地址转换为整数来实现,但Java TM编程语言不需要此实现技术。)

Returns
int a hash code value for this object.

toString

Added in API level 1
String toString ()

返回对象的字符串表示形式。 通常, toString方法返回一个“文本表示”该对象的字符串。 结果应该是一个简洁但内容丰富的表述,对于一个人来说很容易阅读。 建议所有子类重写此方法。

ObjecttoString方法返回一个字符串,其中包含对象为实例的类的名称,符号字符“ @ ”以及对象的哈希代码的无符号十六进制表示形式。 换句话说,这个方法返回一个字符串,其值等于:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns
String a string representation of the object.

Hooray!