running a single tests

README.md

@@ -7,6 +7,7 @@ Inspired by [node-compat-table](https://github.com/williamkapke/node-compat-tabl
 The `wpt` shell command provides a frontend to a variety of tools for working with and running [web-platform-tests](https://github.com/web-platform-tests/wpt). Some of the most useful commands are:
 
 - [x] `./wpt run` - For running tests in Deno
+- [x] `./wpt test <file>` - For running a single tests in Deno
 - [x] `./wpt build` - For building the website
 - [ ] `./wpt sync` - For syncing tests in `spec` from web-platform-tests repo
 - [ ] `./wpt serve` - For starting the wpt http server (BUG & Need Help)

lib/runner.ts

@@ -136,12 +136,16 @@ export async function runTestsSerial(tests: TestDefinition[]): Promise<void> {
  * Runs specified test cases.
  * Parallel execution can be enabled via the boolean option; default: serial.
  */
-export async function runTests(): Promise<void> {
+export async function runTests(saveJson = false): Promise<void> {
   console.log(`running ${tests.length} tests`);
   await runTestsSerial(tests);
   printResults();
-  reportJson();
-  reportTesters();
+
+  if (saveJson) {
+    reportJson();
+    reportTesters();
+  }
+
   if (result._failed) {
     // Use setTimeout to avoid the error being ignored due to unhandled
     // promise rejections being swallowed.

wpt.ts

@@ -36,7 +36,18 @@ switch (Deno.args[1]) {
       }
     }
 
-    runTests();
+    runTests(true);
+    break;
+  case "test":
+    if (!Deno.args[2]) {
+      console.log('Please input a file name. Usage: wpt test <filename>');
+      Deno.exit(1);
+    }
+
+    const content = Deno.readFileSync(Deno.args[2]);
+    const code: string = decoder.decode(content);
+    eval(code);
+    runTests(false);
     break;
   case "build":
     build();