import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

devtools/shared/acorn/tests/unit/head_acorn.js

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+"use strict";
+var { classes: Cc, interfaces: Ci, utils: Cu } = Components;
+const { require } = Cu.import("resource://devtools/shared/Loader.jsm", {});
+
+
+function isObject(value) {
+  return typeof value === "object" && value !== null;
+}
+
+function intersect(a, b) {
+  const seen = new Set(a);
+  return b.filter(value => seen.has(value));
+}
+
+function checkEquivalentASTs(expected, actual, prop = []) {
+  do_print("Checking: " + prop.join(" "));
+
+  if (!isObject(expected)) {
+    return void do_check_eq(expected, actual);
+  }
+
+  do_check_true(isObject(actual));
+
+  if (Array.isArray(expected)) {
+    do_check_true(Array.isArray(actual));
+    do_check_eq(expected.length, actual.length);
+    for (let i = 0; i < expected.length; i++) {
+      checkEquivalentASTs(expected[i], actual[i], prop.concat(i));
+    }
+  } else {
+    // We must intersect the keys since acorn and Reflect have different
+    // extraneous properties on their AST nodes.
+    const keys = intersect(Object.keys(expected), Object.keys(actual));
+    for (let key of keys) {
+      checkEquivalentASTs(expected[key], actual[key], prop.concat(key));
+    }
+  }
+}
+
+
+// Register a console listener, so console messages don't just disappear
+// into the ether.
+var errorCount = 0;
+var listener = {
+  observe: function (aMessage) {
+    errorCount++;
+    try {
+      // If we've been given an nsIScriptError, then we can print out
+      // something nicely formatted, for tools like Emacs to pick up.
+      var scriptError = aMessage.QueryInterface(Ci.nsIScriptError);
+      dump(aMessage.sourceName + ":" + aMessage.lineNumber + ": " +
+           scriptErrorFlagsToKind(aMessage.flags) + ": " +
+           aMessage.errorMessage + "\n");
+      var string = aMessage.errorMessage;
+    } catch (x) {
+      // Be a little paranoid with message, as the whole goal here is to lose
+      // no information.
+      try {
+        var string = "" + aMessage.message;
+      } catch (x) {
+        var string = "<error converting error message to string>";
+      }
+    }
+
+    // Ignored until they are fixed in bug 1242968.
+    if (string.includes("JavaScript Warning")) {
+      return;
+    }
+
+    do_throw("head_acorn.js got console message: " + string + "\n");
+  }
+};
+
+var consoleService = Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService);
+consoleService.registerListener(listener);

devtools/shared/acorn/tests/unit/test_import_acorn.js

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+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test that we can require acorn.
+ */
+
+function run_test() {
+  const acorn = require("acorn/acorn");
+  const acorn_loose = require("acorn/acorn_loose");
+  const walk = require("acorn/util/walk");
+  do_check_true(isObject(acorn));
+  do_check_true(isObject(acorn_loose));
+  do_check_true(isObject(walk));
+  do_check_eq(typeof acorn.parse, "function");
+  do_check_eq(typeof acorn_loose.parse_dammit, "function");
+  do_check_eq(typeof walk.simple, "function");
+}

devtools/shared/acorn/tests/unit/test_lenient_parser.js

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+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test that acorn's lenient parser gives something usable.
+ */
+
+const acorn_loose = require("acorn/acorn_loose");
+
+function run_test() {
+  let actualAST = acorn_loose.parse_dammit("let x = 10", {});
+
+  do_print("Actual AST:");
+  do_print(JSON.stringify(actualAST, null, 2));
+  do_print("Expected AST:");
+  do_print(JSON.stringify(expectedAST, null, 2));
+
+  checkEquivalentASTs(expectedAST, actualAST);
+}
+
+const expectedAST = {
+  "type": "Program",
+  "start": 0,
+  "end": 10,
+  "body": [
+    {
+      "type": "ExpressionStatement",
+      "start": 0,
+      "end": 3,
+      "expression": {
+        "type": "Identifier",
+        "start": 0,
+        "end": 3,
+        "name": "let"
+      }
+    },
+    {
+      "type": "ExpressionStatement",
+      "start": 4,
+      "end": 10,
+      "expression": {
+        "type": "AssignmentExpression",
+        "start": 4,
+        "end": 10,
+        "operator": "=",
+        "left": {
+          "type": "Identifier",
+          "start": 4,
+          "end": 5,
+          "name": "x"
+        },
+        "right": {
+          "type": "Literal",
+          "start": 8,
+          "end": 10,
+          "value": 10,
+          "raw": "10"
+        }
+      }
+    }
+  ]
+};

devtools/shared/acorn/tests/unit/test_same_ast.js

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+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Test that Reflect and acorn create the same AST for ES5.
+ */
+
+const acorn = require("acorn/acorn");
+const { Reflect } = require("resource://gre/modules/reflect.jsm");
+
+const testCode = "" + function main () {
+  function makeAcc(n) {
+    return function () {
+      return ++n;
+    };
+  }
+
+  var acc = makeAcc(10);
+
+  for (var i = 0; i < 10; i++) {
+    acc();
+  }
+
+  console.log(acc());
+};
+
+function run_test() {
+  const reflectAST = Reflect.parse(testCode);
+  const acornAST = acorn.parse(testCode);
+
+  do_print("Reflect AST:");
+  do_print(JSON.stringify(reflectAST, null, 2));
+  do_print("acorn AST:");
+  do_print(JSON.stringify(acornAST, null, 2));
+
+  checkEquivalentASTs(reflectAST, acornAST);
+}

devtools/shared/acorn/tests/unit/xpcshell.ini

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+[DEFAULT]
+tags = devtools
+head = head_acorn.js
+tail =
+firefox-appdir = browser
+skip-if = toolkit == 'android'
+
+[test_import_acorn.js]
+[test_same_ast.js]
+[test_lenient_parser.js]