feat(test): Add "name", "origin" and "parent" to "Deno.TestContext" (#14007)

This commit adds following fields to "Deno.TestContext" interface:
- name
- origin
- parent

These are prerequisites for supporting snapshot functionality in
"std/testing".

1 files changed, 31 insertions, 1 deletions

diff --git a/cli/tests/unit/testing_test.ts b/cli/tests/unit/testing_test.ts
index 87b862a7d..90575aeb2 100644
--- a/cli/tests/unit/testing_test.ts
+++ b/cli/tests/unit/testing_test.ts
@@ -1,5 +1,5 @@
 // Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
-import { assertRejects, assertThrows } from "./test_util.ts";
+import { assertEquals, assertRejects, assertThrows } from "./test_util.ts";
 
 Deno.test(function testWrongOverloads() {
   assertThrows(
@@ -117,3 +117,33 @@ Deno.test(async function invalidStepArguments(t) {
     "Expected a test definition or name and function.",
   );
 });
+
+Deno.test(async function nameOnTextContext(t1) {
+  await assertEquals(t1.name, "nameOnTextContext");
+  await t1.step("step", async (t2) => {
+    await assertEquals(t2.name, "step");
+    await t2.step("nested step", async (t3) => {
+      await assertEquals(t3.name, "nested step");
+    });
+  });
+});
+
+Deno.test(async function originOnTextContext(t1) {
+  await assertEquals(t1.origin, Deno.mainModule);
+  await t1.step("step", async (t2) => {
+    await assertEquals(t2.origin, Deno.mainModule);
+    await t2.step("nested step", async (t3) => {
+      await assertEquals(t3.origin, Deno.mainModule);
+    });
+  });
+});
+
+Deno.test(async function parentOnTextContext(t1) {
+  await assertEquals(t1.parent, undefined);
+  await t1.step("step", async (t2) => {
+    await assertEquals(t1, t2.parent);
+    await t2.step("nested step", async (t3) => {
+      await assertEquals(t2, t3.parent);
+    });
+  });
+});