chore(tests/specs): ability to have sub tests in file (#23667)

Allows writing named sub-tests. These are:

1. Filterable on the command line via `cargo test ...`
2. Run in parallel
3. Use a fresh temp and deno dir for each test (unlike steps)

1 files changed, 14 insertions, 11 deletions

diff --git a/tests/specs/jsr/no_module_graph/__test__.jsonc b/tests/specs/jsr/no_module_graph/__test__.jsonc
index 6c89ccb54..e7428c16a 100644
--- a/tests/specs/jsr/no_module_graph/__test__.jsonc
+++ b/tests/specs/jsr/no_module_graph/__test__.jsonc
@@ -1,13 +1,16 @@
 {
-  "steps": [{
-    "args": "run main.ts",
-    "output": "main.out"
-  }, {
-    "cleanDenoDir": true,
-    "args": "info main.ts",
-    "output": "main_info.out"
-  }, {
-    "args": "run --quiet multiple.ts",
-    "output": "multiple.out"
-  }]
+  "tests": {
+    "single": {
+      "args": "run main.ts",
+      "output": "main.out"
+    },
+    "single_info": {
+      "args": "info main.ts",
+      "output": "main_info.out"
+    },
+    "multiple": {
+      "args": "run --quiet multiple.ts",
+      "output": "multiple.out"
+    }
+  }
 }