Hide TSTree, expose TSNode

spec/runtime/languages/language_specs.cc

@@ -0,0 +1,45 @@
+#include "runtime/runtime_spec_helper.h"
+#include "runtime/helpers/read_test_entries.h"
+
+extern "C" TSParser * ts_parser_javascript();
+extern "C" TSParser * ts_parser_json();
+extern "C" TSParser * ts_parser_arithmetic();
+extern "C" TSParser * ts_parser_golang();
+
+START_TEST
+
+describe("Languages", [&]() {
+    TSDocument *doc;
+
+    before_each([&]() {
+        doc = ts_document_make();
+    });
+
+    after_each([&]() {
+        ts_document_free(doc);
+    });
+
+    auto run_tests_for_language = [&](string language, TSParser * (parser_constructor)()) {
+        describe(language.c_str(), [&]() {
+            before_each([&]() {
+                ts_document_set_parser(doc, parser_constructor());
+            });
+
+            for (auto &entry : test_entries_for_language(language)) {
+                it(entry.description.c_str(), [&]() {
+                    ts_document_set_input_string(doc, entry.input.c_str());
+                    auto doc_string = ts_document_string(doc);
+                    AssertThat(doc_string, Equals(entry.tree_string.c_str()));
+                    free((void *)doc_string);
+                });
+            }
+        });
+    };
+
+    run_tests_for_language("json", ts_parser_json);
+    run_tests_for_language("arithmetic", ts_parser_arithmetic);
+    run_tests_for_language("javascript", ts_parser_javascript);
+    run_tests_for_language("golang", ts_parser_golang);
+});
+
+END_TEST