"g", "h", "i", "j"));
String shouldHave = "x,y, \"a\",\"b\", \"x\", \"y\", \'a\', b, {0}, \'y\'";
assertEquals(shouldHave, s.argsWithQuotes("x", "y"));
assertEquals("repeatedArgs: a, b, a, b, a, b, a, b",
s.testLotsOfUsageOfArgs("a", "b"));
assertEquals("\"~\" ~~ \"~~~~ \"\"", s.testWithXs());
assertEquals("お好你好好", s.unicode("好", "好"));
assertEquals("", s.empty());
assertEquals("{quoted}", s.quotedBraces());
}