断言--assertThat

字符相关匹配符
/**equalTo匹配符断言被测的testedValue等于expectedValue，
* equalTo可以断言数值之间，字符串之间和对象之间是否相等，相当于Object的equals方法
*/
assertThat(testedValue, equalTo(expectedValue));
/**equalToIgnoringCase匹配符断言被测的字符串testedString
*在忽略大小写的情况下等于expectedString
*/
assertThat(testedString, equalToIgnoringCase(expectedString));
/**equalToIgnoringWhiteSpace匹配符断言被测的字符串testedString
*在忽略头尾的任意个空格的情况下等于expectedString，
*注意：字符串中的空格不能被忽略
*/
assertThat(testedString, equalToIgnoringWhiteSpace(expectedString);
/**containsString匹配符断言被测的字符串testedString包含子字符串subString**/
assertThat(testedString, containsString(subString) );
/**endsWith匹配符断言被测的字符串testedString以子字符串suffix结尾*/
assertThat(testedString, endsWith(suffix));
/**startsWith匹配符断言被测的字符串testedString以子字符串prefix开始*/
assertThat(testedString, startsWith(prefix));
一般匹配符
/**nullValue()匹配符断言被测object的值为null*/
assertThat(object,nullValue());
/**notNullValue()匹配符断言被测object的值不为null*/
assertThat(object,notNullValue());
/**is匹配符断言被测的object等于后面给出匹配表达式*/
assertThat(testedString, is(equalTo(expectedValue)));
/**is匹配符简写应用之一，is(equalTo(x))的简写，断言testedValue等于expectedValue*/
assertThat(testedValue, is(expectedValue));
/**is匹配符简写应用之二，is(instanceOf(SomeClass.class))的简写，
*断言testedObject为Cheddar的实例
*/
assertThat(testedObject, is(Cheddar.class));
/**not匹配符和is匹配符正好相反，断言被测的object不等于后面给出的object*/
assertThat(testedString, not(expectedString));
/**allOf匹配符断言符合所有条件，相当于“与”（&&）*/
assertThat(testedNumber, allOf( greaterThan(8), lessThan(16) ) );
/**anyOf匹配符断言符合条件之一，相当于“或”（||）*/
assertThat(testedNumber, anyOf( greaterThan(16), lessThan(8) ) );
数值相关匹配符
/**closeTo匹配符断言被测的浮点型数testedDouble在20.0?à0.5范围之内*/
assertThat(testedDouble, closeTo( 20.0, 0.5 ));
/**greaterThan匹配符断言被测的数值testedNumber大于16.0*/
assertThat(testedNumber, greaterThan(16.0));
/** lessThan匹配符断言被测的数值testedNumber小于16.0*/
assertThat(testedNumber, lessThan (16.0));
/** greaterThanOrEqualTo匹配符断言被测的数值testedNumber大于等于16.0*/
assertThat(testedNumber, greaterThanOrEqualTo (16.0));
/** lessThanOrEqualTo匹配符断言被测的testedNumber小于等于16.0*/
assertThat(testedNumber, lessThanOrEqualTo (16.0));
集合相关匹配符
/**hasEntry匹配符断言被测的Map对象mapObject含有一个键值为"key"对应元素值为"value"的Entry项*/
assertThat(mapObject, hasEntry("key", "value" ) );
/**hasItem匹配符表明被测的迭代对象iterableObject含有元素element项则测试通过*/
assertThat(iterableObject, hasItem (element));
/** hasKey匹配符断言被测的Map对象mapObject含有键值“key”*/
assertThat(mapObject, hasKey ("key"));
/** hasValue匹配符断言被测的Map对象mapObject含有元素值value*/
assertThat(mapObject, hasValue(value));