比较两个字符串在Windows上有效，但在Linux上失败 [英] Comparing two strings works on windows but fails on linux

问题描述

我写了一个单元测试，它控制德语字母（ä，ö，ß等）是否存在编码问题。

I have written a unit test, which controls if there are any encoding problems with german letters( ä,ö,ß,etc.)

@Test
public void testBodyWithDefaultCharset() throws UnsupportedEncodingException {
    when(backendDefinition.getProperty(BackendDetailsEnum.MAIL_CHARSET.getName())).thenReturn(null);
    Charset defaultCharset  = Charset.defaultCharset();
    when(packet.getPayload()).thenReturn(defaultCharset.encode("ÄÖÜäöüß").array());

    final String mailText = classUnderTest.prepareMailText(backendDefinition, packet);

    assertThat(mailText, is(equalTo("ÄÖÜäöüß")));
}

此测试在Windows pc中通过，但在jenkins上失败，这是Linux环境。错误消息如下；

This test passes in windows pc but fails on jenkins, which is a linux environment. The error message is as follows;

Expected: is "ÄÖÜäöüß"
but: was "???????"

我的问题是，将mailText与ÄÖÜäööß进行比较是否错误？比较两个字符串时，我不需要声明任何编码。

My question is, is it wrong to compare mailText with "ÄÖÜäöüß"? I thougt I don't need to state any encoding when I compare two strings.

推荐答案

我将声明行更改如下

assertThat(mailText, is(equalTo(new String("ÄÖÜäöüß".getBytes(defaultCharset)))));

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