public void GetEnvironmentVariable_Returns_From_Os_If_Set() { _configManagerMock.GetKeyFromMapping("MG_SOME_VAR", "MG_SOME_VAR"); _envMock.GetEnvironmentVariable("MG_SOME_VAR", "Hello value"); var sut = new SecretManager(_envMock.Object, _fileManagerMock.Object, _configManagerMock.Object); var result = sut.GetEnvironmentVariable("MG_SOME_VAR"); Assert.Equal("Hello value", result); }