Add all webidl interfaces to the same test context

Author: Sebmaster

test/harness/index.test.js

@@ -19,6 +19,9 @@ function createSandbox(setupScripts) {
       // eslint-disable-next-line global-require
       return require(p);
     }
+    if (p.startsWith("../implementations/")) {
+      return class Stub {};
+    }
 
     const resolved = path.resolve(__dirname, "../output", p);
     const src = readFileSync(resolved, { encoding: "utf8" });
@@ -34,15 +37,7 @@ function createSandbox(setupScripts) {
   return sandbox;
 }
 
-async function testInterface(name, setupScripts) {
-  const idlToTest = await fs.readFile(
-    path.join(__dirname, `../cases/${name}.webidl`),
-    {
-      encoding: "utf8"
-    }
-  );
-
-  const sandbox = createSandbox(setupScripts);
+async function prepareInterface({ name, content }, idlArray, sandbox) {
   vm.runInContext(
     `
     Object.defineProperty(self, '${name}', {
@@ -54,47 +49,7 @@ async function testInterface(name, setupScripts) {
     sandbox
   );
 
-  const prom = new Promise((resolve, reject) => {
-    const errors = [];
-
-    sandbox.add_result_callback(test => {
-      if (test.status === 1) {
-        errors.push(
-          `Failed in "${test.name}": \n${test.message}\n\n${test.stack}`
-        );
-      } else if (test.status === 2) {
-        errors.push(
-          `Timeout in "${test.name}": \n${test.message}\n\n${test.stack}`
-        );
-      } else if (test.status === 3) {
-        errors.push(
-          `Uncompleted test "${test.name}": \n${test.message}\n\n${test.stack}`
-        );
-      }
-    });
-
-    sandbox.add_completion_callback((tests, harnessStatus) => {
-      if (harnessStatus.status === 2) {
-        errors.push(new Error(`test harness should not timeout`));
-      }
-
-      if (errors.length === 1) {
-        reject(new Error(errors[0]));
-      } else if (errors.length) {
-        reject(
-          new Error(`${errors.length} errors in test:\n\n${errors.join("\n")}`)
-        );
-      } else {
-        resolve();
-      }
-    });
-  });
-
-  const idlArray = new sandbox.IdlArray();
-  idlArray.add_idls(idlToTest);
-
-  idlArray.test();
-  await prom;
+  idlArray.add_idls(content);
 }
 
 describe("IDL Harness", () => {
@@ -114,7 +69,67 @@ describe("IDL Harness", () => {
     );
   });
 
-  test("URL.js", async () => {
-    await testInterface("URL", setupScripts);
+  const files = ["URL", "Unscopable"];
+  test(`IDLHarness.js`, async () => {
+    const idlSources = await Promise.all(
+      files.map(async f => ({
+        name: f.replace(/\.webidl$/, ""),
+        content: await fs.readFile(
+          path.join(__dirname, `../cases/${f}.webidl`),
+          {
+            encoding: "utf8"
+          }
+        )
+      }))
+    );
+    const sandbox = createSandbox(setupScripts);
+
+    const idlArray = new sandbox.IdlArray();
+    idlSources.forEach(source => {
+      prepareInterface(source, idlArray, sandbox);
+    });
+
+    const prom = new Promise((resolve, reject) => {
+      const errors = [];
+
+      sandbox.add_result_callback(test => {
+        if (test.status === 1) {
+          errors.push(
+            `Failed in "${test.name}": \n${test.message}\n\n${test.stack}`
+          );
+        } else if (test.status === 2) {
+          errors.push(
+            `Timeout in "${test.name}": \n${test.message}\n\n${test.stack}`
+          );
+        } else if (test.status === 3) {
+          errors.push(
+            `Uncompleted test "${test.name}": \n${test.message}\n\n${
+              test.stack
+            }`
+          );
+        }
+      });
+
+      sandbox.add_completion_callback((tests, harnessStatus) => {
+        if (harnessStatus.status === 2) {
+          errors.push(new Error(`test harness should not timeout`));
+        }
+
+        if (errors.length === 1) {
+          reject(new Error(errors[0]));
+        } else if (errors.length) {
+          reject(
+            new Error(
+              `${errors.length} errors in test:\n\n${errors.join("\n")}`
+            )
+          );
+        } else {
+          resolve();
+        }
+      });
+    });
+
+    idlArray.test();
+    await prom;
   });
 });