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, 32 insertions, 26 deletions

diff --git a/tests/specs/import_map/import_map_config/__test__.jsonc b/tests/specs/import_map/import_map_config/__test__.jsonc
index b0463a231..77553da6b 100644
--- a/tests/specs/import_map/import_map_config/__test__.jsonc
+++ b/tests/specs/import_map/import_map_config/__test__.jsonc
@@ -1,28 +1,34 @@
 {
-  "steps": [{
-    "args": "run --quiet --reload --import-map=import_map.json test.ts",
-    "output": "run.out"
-  }, {
-    "args": "run --quiet --reload --import-map=import_map_invalid.json --config=config.json test.ts",
-    "output": "flag_has_precedence.out",
-    "exitCode": 1
-  }, {
-    "args": "run --reload --config=config.json test.ts",
-    "output": "config.out"
-  }, {
-    "cleanDenoDir": true,
-    "args": "cache --quiet --reload --import-map=import_map.json test.ts",
-    "output": "cache.out"
-  }, {
-    "cleanDenoDir": true,
-    "args": "info --quiet --import-map=import_map.json test.ts",
-    "output": "info.out"
-  }, {
-    "args": "run --quiet --reload --import-map=import_map.json unmapped_bare_specifier.ts",
-    "output": "unmapped_bare_specifier.out",
-    "exitCode": 1
-  }, {
-    "args": "run --quiet --reload --import-map import_map.json import_data_url.ts",
-    "output": "import_data_url.out"
-  }]
+  "tests": {
+    "run_import_map": {
+      "args": "run --quiet --reload --import-map=import_map.json test.ts",
+      "output": "run.out"
+    },
+    "un_invalid_import_map": {
+      "args": "run --quiet --reload --import-map=import_map_invalid.json --config=config.json test.ts",
+      "output": "flag_has_precedence.out",
+      "exitCode": 1
+    },
+    "run_config": {
+      "args": "run --reload --config=config.json test.ts",
+      "output": "config.out"
+    },
+    "cache": {
+      "args": "cache --quiet --reload --import-map=import_map.json test.ts",
+      "output": "cache.out"
+    },
+    "info": {
+      "args": "info --quiet --import-map=import_map.json test.ts",
+      "output": "info.out"
+    },
+    "unmapped_bare_specifier": {
+      "args": "run --quiet --reload --import-map=import_map.json unmapped_bare_specifier.ts",
+      "output": "unmapped_bare_specifier.out",
+      "exitCode": 1
+    },
+    "data_url": {
+      "args": "run --quiet --reload --import-map import_map.json import_data_url.ts",
+      "output": "import_data_url.out"
+    }
+  }
 }