first commit

external/builder/test-fixtures_babel.mjs

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+import fs from "fs";
+import path from "path";
+import { preprocessPDFJSCode } from "./babel-plugin-pdfjs-preprocessor.mjs";
+
+const __dirname = import.meta.dirname;
+
+let errors = 0;
+
+const baseDir = path.join(__dirname, "fixtures_babel");
+const files = fs
+  .readdirSync(baseDir)
+  .filter(function (name) {
+    return /-expected\./.test(name);
+  })
+  .map(function (name) {
+    return path.join(baseDir, name);
+  });
+files.forEach(function (expectationFilename) {
+  const inFilename = expectationFilename.replace("-expected", "");
+  const expectation = fs
+    .readFileSync(expectationFilename)
+    .toString()
+    .trim()
+    .replaceAll("__filename", fs.realpathSync(inFilename));
+  const input = fs.readFileSync(inFilename).toString();
+
+  const defines = {
+    TRUE: true,
+    FALSE: false,
+    OBJ: { obj: { i: 1 }, j: 2 },
+    TEXT: "text",
+  };
+  const map = {
+    "import-alias": "import-name",
+  };
+  const ctx = {
+    defines,
+    map,
+    rootPath: __dirname + "/../..",
+  };
+  let out;
+  try {
+    out = preprocessPDFJSCode(ctx, input);
+  } catch (e) {
+    out = ("Error: " + e.message).replaceAll(/^/gm, "//");
+  }
+  if (out !== expectation) {
+    errors++;
+
+    // Allow regenerating the expected output using
+    //   OVERWRITE=true node ./external/builder/test-fixtures_babel.mjs
+    if (process.env.OVERWRITE) {
+      fs.writeFileSync(expectationFilename, out + "\n");
+    }
+
+    console.log("Assertion failed for " + inFilename);
+    console.log("--------------------------------------------------");
+    console.log("EXPECTED:");
+    console.log(expectation);
+    console.log("--------------------------------------------------");
+    console.log("ACTUAL");
+    console.log(out);
+    console.log("--------------------------------------------------");
+    console.log();
+  }
+});
+
+if (errors) {
+  console.error("Found " + errors + " expectation failures.");
+  process.exit(1);
+} else {
+  console.log("All tests completed without errors.");
+  process.exit(0);
+}