Antlr4.Test.StringTemplate.TestImports.TestImportRelativeTemplateFile C# (CSharp) Метод

        public void TestImportRelativeTemplateFile()
        {
            /*
            dir
                group1.stg		that imports c.st
                subdir
                    c.st
             */
            string dir = tmpdir;
            string groupFile =
                "import \"subdir/c.st\"\n" +
                "a() ::= \"g1 a\"\n" +
                "b() ::= \"<c()>\"\n";
            writeFile(dir, "group1.stg", groupFile);

            string stFile =
                "c() ::= \"c\"\n";
            writeFile(dir, Path.Combine("subdir", "c.st"), stFile);

            TemplateGroup group1 = new TemplateGroupFile(Path.Combine(dir, "group1.stg"));
            Template st = group1.GetInstanceOf("c"); // should see c()
            string expected = "c";
            string result = st?.Render();
            Assert.AreEqual(expected, result);
        }