参数匹配器的使用无效! 0匹配预期,1记录 [英] Invalid use of argument matchers! 0 matchers expected, 1 recorded
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问题描述
虽然错误是非常具有描述性的,但我无法理解它。
对于行:
Although the error is quite descriptive I could not get a hang of it. For lines:
PowerMockito.when(
mockStringMessageService.lookupString(Matchers.eq("XYZ")))
.thenReturn(Matchers.eq("XYZ"));
错误是:
[junit] Invalid use of argument matchers!
[junit] 0 matchers expected, 1 recorded:
[junit] -> at com.amazon.kilvish.types.StatusTableTest.setUp(StatusTableTest.java:61)
[junit]
[junit] This exception may occur if matchers are combined with raw values:
[junit] //incorrect:
[junit] someMethod(anyObject(), "raw String");
[junit] When using matchers, all arguments have to be provided by matchers.
[junit] For example:
[junit] //correct:
[junit] someMethod(anyObject(), eq("String by matcher"));
[junit]
[junit] For more info see javadoc for Matchers class.
为什么预期有0个匹配器?
Why are 0 matchers expected?
推荐答案
您不能在 thenReturn
子句中使用匹配器。只需使用字符串文字:
You cannot use matchers in the thenReturn
clause. Just use the string literal instead:
PowerMockito.when(
mockStringMessageService.lookupString(Matchers.eq("XYZ")))
.thenReturn("XYZ");
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