chore: refactor testMany test util (#695)

* chore: refactor testMany test util

* chore: add JS_ESBUILD_ZISI variation

* chore: fix test

tests/helpers/test_many.js

@@ -0,0 +1,25 @@
+const makeTestMany = (test, matrix) => {
+  const testBundlers = (title, variationNames, assertions, testFn = test) => {
+    variationNames.forEach((name) => {
+      const variation = matrix[name]
+
+      if (name === undefined || variation === undefined) {
+        throw new Error(`Unknown variation in test: ${name}`)
+      }
+
+      const testTitle = `${title} [${name}]`
+
+      testFn(testTitle, assertions.bind(null, variation))
+    })
+  }
+
+  const testFns = ['failing', 'only', 'serial', 'skip']
+
+  testFns.forEach((fn) => {
+    testBundlers[fn] = (...args) => testBundlers(...args, test[fn])
+  })
+
+  return testBundlers
+}
+
+module.exports = { makeTestMany }