Hide TSTree, expose TSNode

spec/runtime/node_spec.cc

@@ -0,0 +1,53 @@
+#include "runtime/runtime_spec_helper.h"
+
+extern "C" TSParser * ts_parser_arithmetic();
+
+START_TEST
+
+describe("Node", []() {
+    TSDocument *document;
+
+    before_each([&]() {
+        document = ts_document_make();
+        ts_document_set_parser(document, ts_parser_arithmetic());
+    });
+
+    after_each([&]() {
+        ts_document_free(document);
+    });
+
+    describe("getting the nth child node", [&]() {
+        TSNode *root;
+
+        describe("when the child has more than n visible children", [&]() {
+            before_each([&]() {
+                ts_document_set_input_string(document, "x + 1");
+                root = ts_document_root_node(document);
+
+                AssertThat(ts_node_name(root), Equals("sum"));
+                AssertThat(ts_node_string(root), Equals("(sum (variable) (number))"));
+            });
+
+            after_each([&]() {
+                ts_node_release(root);
+            });
+
+            it("returns the nth child", [&]() {
+                TSNode *child1 = ts_node_child(root, 0);
+                AssertThat(ts_node_name(child1), Equals("variable"));
+
+                TSNode *child2 = ts_node_child(root, 1);
+                AssertThat(ts_node_name(child2), Equals("number"));
+
+                ts_node_release(child1);
+                ts_node_release(child2);
+            });
+        });
+    });
+
+    it("gets the first token", [&]() {
+        // ts_document_get_node(document, 0);
+    });
+});
+
+END_TEST