feat(std/node) add CommonJS require (#3380)

1 files changed, 27 insertions, 0 deletions

diff --git a/std/node/require_test.ts b/std/node/require_test.ts
new file mode 100644
index 000000000..7cac6d6b2
--- /dev/null
+++ b/std/node/require_test.ts
@@ -0,0 +1,27 @@
+import { test } from "../testing/mod.ts";
+import { assertEquals, assert } from "../testing/asserts.ts";
+import { makeRequire } from "./require.ts";
+
+const selfPath = window.unescape(import.meta.url.substring(7));
+// TS compiler would try to resolve if function named "require"
+// Thus suffixing it with require_ to fix this...
+const require_ = makeRequire(selfPath);
+
+test(function requireSuccess() {
+  const result = require_("./node/tests/cjs/cjs_a.js");
+  assert("helloA" in result);
+  assert("helloB" in result);
+  assert("C" in result);
+  assert("leftPad" in result);
+  assertEquals(result.helloA(), "A");
+  assertEquals(result.helloB(), "B");
+  assertEquals(result.C, "C");
+  assertEquals(result.leftPad("pad", 4), " pad");
+});
+
+test(function requireCycle() {
+  const resultA = require_("./node/tests/cjs/cjs_cycle_a");
+  const resultB = require_("./node/tests/cjs/cjs_cycle_b");
+  assert(resultA);
+  assert(resultB);
+});