+TEST(FileNameOptionTest, HandlesRequiredOptionWithoutValue)
+{
+ gmx::Options options(NULL, NULL);
+ std::string value;
+ ASSERT_NO_THROW_GMX(options.addOption(
+ FileNameOption("f").store(&value).required()
+ .filetype(gmx::eftGenericData).outputFile()
+ .defaultBasename("testfile")));
+
+ gmx::OptionsAssigner assigner(&options);
+ EXPECT_NO_THROW_GMX(assigner.start());
+ EXPECT_NO_THROW_GMX(assigner.startOption("f"));
+ EXPECT_NO_THROW_GMX(assigner.finishOption());
+ EXPECT_NO_THROW_GMX(assigner.finish());
+ EXPECT_NO_THROW_GMX(options.finish());
+
+ EXPECT_EQ("testfile.dat", value);
+}
+