Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 819 insertions, 0 deletions

diff --git a/devtools/client/debugger/src/utils/pause/frames/annotateFrames.js b/devtools/client/debugger/src/utils/pause/frames/annotateFrames.js
new file mode 100644
index 0000000000..bd4114c5ab
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/annotateFrames.js
@@ -0,0 +1,80 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import { flatMap, zip, range } from "lodash";
+
+import type { Frame } from "../../../types";
+import { getFrameUrl } from "./getFrameUrl";
+import { getLibraryFromUrl } from "./getLibraryFromUrl";
+
+type AnnotatedFrame =
+  | {|
+      ...Frame,
+      library: string,
+    |}
+  | Frame;
+
+export function annotateFrames(frames: Frame[]): AnnotatedFrame[] {
+  const annotatedFrames = frames.map(f => annotateFrame(f, frames));
+  return annotateBabelAsyncFrames(annotatedFrames);
+}
+
+function annotateFrame(frame: Frame, frames: Frame[]): AnnotatedFrame {
+  const library = getLibraryFromUrl(frame, frames);
+  if (library) {
+    return { ...frame, library };
+  }
+
+  return frame;
+}
+
+function annotateBabelAsyncFrames(frames: Frame[]): Frame[] {
+  const babelFrameIndexes = getBabelFrameIndexes(frames);
+  const isBabelFrame = frameIndex => babelFrameIndexes.includes(frameIndex);
+
+  return frames.map((frame, frameIndex) =>
+    isBabelFrame(frameIndex) ? { ...frame, library: "Babel" } : frame
+  );
+}
+
+// Receives an array of frames and looks for babel async
+// call stack groups.
+function getBabelFrameIndexes(frames) {
+  const startIndexes = frames.reduce((accumulator, frame, index) => {
+    if (
+      getFrameUrl(frame).match(/regenerator-runtime/i) &&
+      frame.displayName === "tryCatch"
+    ) {
+      return [...accumulator, index];
+    }
+    return accumulator;
+  }, []);
+
+  const endIndexes = frames.reduce((accumulator, frame, index) => {
+    if (
+      getFrameUrl(frame).match(/_microtask/i) &&
+      frame.displayName === "flush"
+    ) {
+      return [...accumulator, index];
+    }
+    if (frame.displayName === "_asyncToGenerator/<") {
+      return [...accumulator, index + 1];
+    }
+    return accumulator;
+  }, []);
+
+  if (startIndexes.length != endIndexes.length || startIndexes.length === 0) {
+    return frames;
+  }
+
+  // Receives an array of start and end index tuples and returns
+  // an array of async call stack index ranges.
+  // e.g. [[1,3], [5,7]] => [[1,2,3], [5,6,7]]
+  // $FlowIgnore
+  return flatMap(zip(startIndexes, endIndexes), ([startIndex, endIndex]) =>
+    range(startIndex, endIndex + 1)
+  );
+}
diff --git a/devtools/client/debugger/src/utils/pause/frames/collapseFrames.js b/devtools/client/debugger/src/utils/pause/frames/collapseFrames.js
new file mode 100644
index 0000000000..d39a26d574
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/collapseFrames.js
@@ -0,0 +1,69 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import { findIndex } from "lodash";
+
+// eslint-disable-next-line max-len
+import type { Frame } from "../../../types";
+import { getFrameUrl } from "./getFrameUrl";
+
+function collapseLastFrames(frames) {
+  const index = findIndex(frames, frame =>
+    getFrameUrl(frame).match(/webpack\/bootstrap/i)
+  );
+
+  if (index == -1) {
+    return { newFrames: frames, lastGroup: [] };
+  }
+
+  const newFrames = frames.slice(0, index);
+  const lastGroup = frames.slice(index);
+  return { newFrames, lastGroup };
+}
+
+type FrameGroup = Frame[];
+type GroupedFrames = Array<FrameGroup | Frame>;
+
+export function collapseFrames(frames: Frame[]): GroupedFrames {
+  // We collapse groups of one so that user frames
+  // are not in a group of one
+  function addGroupToList(group, list) {
+    if (!group) {
+      return list;
+    }
+
+    if (group.length > 1) {
+      list.push(group);
+    } else {
+      list = list.concat(group);
+    }
+
+    return list;
+  }
+  const { newFrames, lastGroup } = collapseLastFrames(frames);
+  frames = newFrames;
+  let items = [];
+  let currentGroup = null;
+  let prevItem = null;
+  for (const frame of frames) {
+    const prevLibrary = prevItem?.library;
+
+    if (!currentGroup) {
+      currentGroup = [frame];
+    } else if (prevLibrary && prevLibrary == frame.library) {
+      currentGroup.push(frame);
+    } else {
+      items = addGroupToList(currentGroup, items);
+      currentGroup = [frame];
+    }
+
+    prevItem = frame;
+  }
+
+  items = addGroupToList(currentGroup, items);
+  items = addGroupToList(lastGroup, items);
+  return items;
+}
diff --git a/devtools/client/debugger/src/utils/pause/frames/displayName.js b/devtools/client/debugger/src/utils/pause/frames/displayName.js
new file mode 100644
index 0000000000..dbd53d53cd
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/displayName.js
@@ -0,0 +1,108 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+// eslint-disable-next-line max-len
+import type { Frame } from "../../../types";
+
+// Decodes an anonymous naming scheme that
+// spider monkey implements based on "Naming Anonymous JavaScript Functions"
+// http://johnjbarton.github.io/nonymous/index.html
+const objectProperty = /([\w\d\$]+)$/;
+const arrayProperty = /\[(.*?)\]$/;
+const functionProperty = /([\w\d]+)[\/\.<]*?$/;
+const annonymousProperty = /([\w\d]+)\(\^\)$/;
+
+export function simplifyDisplayName(displayName: string | void): string | void {
+  // if the display name has a space it has already been mapped
+  if (!displayName || /\s/.exec(displayName)) {
+    return displayName;
+  }
+
+  const scenarios = [
+    objectProperty,
+    arrayProperty,
+    functionProperty,
+    annonymousProperty,
+  ];
+
+  for (const reg of scenarios) {
+    const match = reg.exec(displayName);
+    if (match) {
+      return match[1];
+    }
+  }
+
+  return displayName;
+}
+
+const displayNameMap = {
+  Babel: {
+    tryCatch: "Async",
+  },
+  Backbone: {
+    "extend/child": "Create Class",
+    ".create": "Create Model",
+  },
+  jQuery: {
+    "jQuery.event.dispatch": "Dispatch Event",
+  },
+  React: {
+    // eslint-disable-next-line max-len
+    "ReactCompositeComponent._renderValidatedComponentWithoutOwnerOrContext/renderedElement<":
+      "Render",
+    _renderValidatedComponentWithoutOwnerOrContext: "Render",
+  },
+  VueJS: {
+    "renderMixin/Vue.prototype._render": "Render",
+  },
+  Webpack: {
+    // eslint-disable-next-line camelcase
+    __webpack_require__: "Bootstrap",
+  },
+};
+
+function mapDisplayNames(frame, library) {
+  const { displayName } = frame;
+  return displayNameMap[library]?.[displayName] || displayName;
+}
+
+function getFrameDisplayName(frame: Frame): string {
+  const {
+    displayName,
+    originalDisplayName,
+    userDisplayName,
+    name,
+  } = (frame: any);
+  return originalDisplayName || userDisplayName || displayName || name;
+}
+
+type formatDisplayNameParams = {
+  shouldMapDisplayName: boolean,
+};
+export function formatDisplayName(
+  frame: Frame,
+  { shouldMapDisplayName = true }: formatDisplayNameParams = {},
+  l10n: typeof L10N
+): string {
+  const { library } = frame;
+  let displayName = getFrameDisplayName(frame);
+  if (library && shouldMapDisplayName) {
+    displayName = mapDisplayNames(frame, library);
+  }
+
+  return simplifyDisplayName(displayName) || l10n.getStr("anonymousFunction");
+}
+
+export function formatCopyName(frame: Frame, l10n: typeof L10N): string {
+  const displayName = formatDisplayName(frame, undefined, l10n);
+  if (!frame.source) {
+    throw new Error("no frame source");
+  }
+  const fileName = frame.source.url || frame.source.id;
+  const frameLocation = frame.location.line;
+
+  return `${displayName} (${fileName}#${frameLocation})`;
+}
diff --git a/devtools/client/debugger/src/utils/pause/frames/getFrameUrl.js b/devtools/client/debugger/src/utils/pause/frames/getFrameUrl.js
new file mode 100644
index 0000000000..6a151e14f7
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/getFrameUrl.js
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import type { Frame } from "../../../types";
+
+export function getFrameUrl(frame: Frame) {
+  return frame?.source?.url ?? "";
+}
diff --git a/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js b/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js
new file mode 100644
index 0000000000..232079e3ec
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js
@@ -0,0 +1,149 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import type { Frame } from "../../../types";
+import { getFrameUrl } from "./getFrameUrl";
+
+const libraryMap = [
+  {
+    label: "Backbone",
+    pattern: /backbone/i,
+  },
+  {
+    label: "Babel",
+    pattern: /node_modules\/@babel/i,
+  },
+  {
+    label: "jQuery",
+    pattern: /jquery/i,
+  },
+  {
+    label: "Preact",
+    pattern: /preact/i,
+  },
+  {
+    label: "React",
+    pattern: /(node_modules\/(?:react(-dom)?(-dev)?\/))|(react(-dom)?(-dev)?(\.[a-z]+)*\.js$)/,
+  },
+  {
+    label: "Immutable",
+    pattern: /immutable/i,
+  },
+  {
+    label: "Webpack",
+    pattern: /webpack\/bootstrap/i,
+  },
+  {
+    label: "Express",
+    pattern: /node_modules\/express/,
+  },
+  {
+    label: "Pug",
+    pattern: /node_modules\/pug/,
+  },
+  {
+    label: "ExtJS",
+    pattern: /\/ext-all[\.\-]/,
+  },
+  {
+    label: "MobX",
+    pattern: /mobx/i,
+  },
+  {
+    label: "Underscore",
+    pattern: /underscore/i,
+  },
+  {
+    label: "Lodash",
+    pattern: /lodash/i,
+  },
+  {
+    label: "Ember",
+    pattern: /ember/i,
+  },
+  {
+    label: "Choo",
+    pattern: /choo/i,
+  },
+  {
+    label: "VueJS",
+    pattern: /vue(?:\.[a-z]+)*\.js/i,
+  },
+  {
+    label: "RxJS",
+    pattern: /rxjs/i,
+  },
+  {
+    label: "Angular",
+    pattern: /angular(?!.*\/app\/)/i,
+    contextPattern: /zone\.js/,
+  },
+  {
+    label: "Redux",
+    pattern: /redux/i,
+  },
+  {
+    label: "Dojo",
+    pattern: /dojo/i,
+  },
+  {
+    label: "Marko",
+    pattern: /marko/i,
+  },
+  {
+    label: "NuxtJS",
+    pattern: /[\._]nuxt/i,
+  },
+  {
+    label: "Aframe",
+    pattern: /aframe/i,
+  },
+  {
+    label: "NextJS",
+    pattern: /[\._]next/i,
+  },
+];
+
+export function getLibraryFromUrl(
+  frame: Frame,
+  callStack: Array<Frame> = []
+): ?string | void {
+  // @TODO each of these fns calls getFrameUrl, just call it once
+  // (assuming there's not more complex logic to identify a lib)
+  const frameUrl = getFrameUrl(frame);
+
+  // Let's first check if the frame match a defined pattern.
+  let match = libraryMap.find(o => o.pattern.test(frameUrl));
+  if (match) {
+    return match.label;
+  }
+
+  // If it does not, it might still be one of the case where the file is used
+  // by a library but the name has not enough specificity. In such case, we want
+  // to only return the library name if there are frames matching the library
+  // pattern in the callStack (e.g. `zone.js` is used by Angular, but the name
+  //  could be quite common and return false positive if evaluated alone. So we
+  // only return Angular if there are other frames matching Angular).
+  match = libraryMap.find(
+    o => o.contextPattern && o.contextPattern.test(frameUrl)
+  );
+  if (match) {
+    const contextMatch = callStack.some(f => {
+      const url = getFrameUrl(f);
+      if (!url) {
+        return false;
+      }
+
+      return libraryMap.some(o => o.pattern.test(url));
+    });
+
+    if (contextMatch) {
+      return match.label;
+    }
+  }
+
+  return null;
+}
diff --git a/devtools/client/debugger/src/utils/pause/frames/index.js b/devtools/client/debugger/src/utils/pause/frames/index.js
new file mode 100644
index 0000000000..68d214162c
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/index.js
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+export * from "./annotateFrames";
+export * from "./collapseFrames";
+export * from "./displayName";
+export * from "./getFrameUrl";
+export * from "./getLibraryFromUrl";
diff --git a/devtools/client/debugger/src/utils/pause/frames/moz.build b/devtools/client/debugger/src/utils/pause/frames/moz.build
new file mode 100644
index 0000000000..5bb330a57f
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/moz.build
@@ -0,0 +1,15 @@
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+DIRS += []
+
+CompiledModules(
+    "annotateFrames.js",
+    "collapseFrames.js",
+    "displayName.js",
+    "getFrameUrl.js",
+    "getLibraryFromUrl.js",
+    "index.js",
+)
diff --git a/devtools/client/debugger/src/utils/pause/frames/tests/__snapshots__/collapseFrames.spec.js.snap b/devtools/client/debugger/src/utils/pause/frames/tests/__snapshots__/collapseFrames.spec.js.snap
new file mode 100644
index 0000000000..89dbccd374
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/tests/__snapshots__/collapseFrames.spec.js.snap
@@ -0,0 +1,57 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`collapseFrames default 1`] = `
+Array [
+  Object {
+    "displayName": "a",
+  },
+  Array [
+    Object {
+      "displayName": "b",
+      "library": "React",
+    },
+    Object {
+      "displayName": "c",
+      "library": "React",
+    },
+  ],
+]
+`;
+
+exports[`collapseFrames promises 1`] = `
+Array [
+  Object {
+    "displayName": "a",
+  },
+  Array [
+    Object {
+      "displayName": "b",
+      "library": "React",
+    },
+    Object {
+      "displayName": "c",
+      "library": "React",
+    },
+  ],
+  Object {
+    "asyncCause": "promise callback",
+    "displayName": "d",
+    "library": undefined,
+  },
+  Array [
+    Object {
+      "displayName": "e",
+      "library": "React",
+    },
+    Object {
+      "displayName": "f",
+      "library": "React",
+    },
+  ],
+  Object {
+    "asyncCause": null,
+    "displayName": "g",
+    "library": undefined,
+  },
+]
+`;
diff --git a/devtools/client/debugger/src/utils/pause/frames/tests/annotateFrames.spec.js b/devtools/client/debugger/src/utils/pause/frames/tests/annotateFrames.spec.js
new file mode 100644
index 0000000000..752f470e2f
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/tests/annotateFrames.spec.js
@@ -0,0 +1,24 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import { annotateFrames } from "../annotateFrames";
+import { makeMockFrameWithURL } from "../../../test-mockup";
+
+describe("annotateFrames", () => {
+  it("should return Angular", () => {
+    const callstack = [
+      makeMockFrameWithURL(
+        "https://stackblitz.io/turbo_modules/@angular/core@7.2.4/bundles/core.umd.js"
+      ),
+      makeMockFrameWithURL("/node_modules/zone/zone.js"),
+      makeMockFrameWithURL(
+        "https://cdnjs.cloudflare.com/ajax/libs/angular/angular.js"
+      ),
+    ];
+    const frames = annotateFrames(callstack);
+    expect(frames).toEqual(callstack.map(f => ({ ...f, library: "Angular" })));
+  });
+});
diff --git a/devtools/client/debugger/src/utils/pause/frames/tests/collapseFrames.spec.js b/devtools/client/debugger/src/utils/pause/frames/tests/collapseFrames.spec.js
new file mode 100644
index 0000000000..15210e0437
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/tests/collapseFrames.spec.js
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+import { collapseFrames } from "../collapseFrames";
+
+describe("collapseFrames", () => {
+  it("default", () => {
+    const groups = collapseFrames([
+      { displayName: "a" },
+
+      { displayName: "b", library: "React" },
+      { displayName: "c", library: "React" },
+    ]);
+
+    expect(groups).toMatchSnapshot();
+  });
+
+  it("promises", () => {
+    const groups = collapseFrames([
+      { displayName: "a" },
+
+      { displayName: "b", library: "React" },
+      { displayName: "c", library: "React" },
+      {
+        displayName: "d",
+        library: undefined,
+        asyncCause: "promise callback",
+      },
+      { displayName: "e", library: "React" },
+      { displayName: "f", library: "React" },
+      { displayName: "g", library: undefined, asyncCause: null },
+    ]);
+
+    expect(groups).toMatchSnapshot();
+  });
+});
diff --git a/devtools/client/debugger/src/utils/pause/frames/tests/displayName.spec.js b/devtools/client/debugger/src/utils/pause/frames/tests/displayName.spec.js
new file mode 100644
index 0000000000..a362885e1d
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/tests/displayName.spec.js
@@ -0,0 +1,129 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import {
+  formatCopyName,
+  formatDisplayName,
+  simplifyDisplayName,
+} from "../displayName";
+
+import { makeMockFrame, makeMockSource } from "../../../test-mockup";
+
+describe("formatCopyName", () => {
+  it("simple", () => {
+    const source = makeMockSource("todo-view.js");
+    const frame = makeMockFrame(undefined, source, undefined, 12, "child");
+
+    expect(formatCopyName(frame, L10N)).toEqual("child (todo-view.js#12)");
+  });
+});
+
+describe("formatting display names", () => {
+  it("uses a library description", () => {
+    const source = makeMockSource("assets/backbone.js");
+    const frame = {
+      ...makeMockFrame(undefined, source, undefined, undefined, "extend/child"),
+      library: "Backbone",
+    };
+
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("Create Class");
+  });
+
+  it("shortens an anonymous function", () => {
+    const source = makeMockSource("assets/bar.js");
+    const frame = makeMockFrame(
+      undefined,
+      source,
+      undefined,
+      undefined,
+      "extend/child/bar/baz"
+    );
+
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("baz");
+  });
+
+  it("does not truncates long function names", () => {
+    const source = makeMockSource("extend/child/bar/baz");
+    const frame = makeMockFrame(
+      undefined,
+      source,
+      undefined,
+      undefined,
+      "bazbazbazbazbazbazbazbazbazbazbazbazbaz"
+    );
+
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual(
+      "bazbazbazbazbazbazbazbazbazbazbazbazbaz"
+    );
+  });
+
+  it("returns the original function name when present", () => {
+    const source = makeMockSource("entry.js");
+    const frame = {
+      ...makeMockFrame(undefined, source),
+      originalDisplayName: "originalFn",
+      displayName: "fn",
+    };
+
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("originalFn");
+  });
+
+  it("returns anonymous when displayName is undefined", () => {
+    const frame = { ...makeMockFrame(), displayName: undefined };
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("<anonymous>");
+  });
+
+  it("returns anonymous when displayName is null", () => {
+    const frame = { ...makeMockFrame(), displayName: (null: any) };
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("<anonymous>");
+  });
+
+  it("returns anonymous when displayName is an empty string", () => {
+    const frame = { ...makeMockFrame(), displayName: "" };
+    expect(formatDisplayName(frame, undefined, L10N)).toEqual("<anonymous>");
+  });
+});
+
+describe("simplifying display names", () => {
+  const cases = {
+    defaultCase: [["define", "define"]],
+
+    objectProperty: [
+      ["z.foz", "foz"],
+      ["z.foz/baz", "baz"],
+      ["z.foz/baz/y.bay", "bay"],
+      ["outer/x.fox.bax.nx", "nx"],
+      ["outer/fow.baw", "baw"],
+      ["fromYUI._attach", "_attach"],
+      ["Y.ClassNameManager</getClassName", "getClassName"],
+      ["orion.textview.TextView</addHandler", "addHandler"],
+      ["this.eventPool_.createObject", "createObject"],
+    ],
+
+    arrayProperty: [
+      ["this.eventPool_[createObject]", "createObject"],
+      ["jQuery.each(^)/jQuery.fn[o]", "o"],
+      ["viewport[get+D]", "get+D"],
+      ["arr[0]", "0"],
+    ],
+
+    functionProperty: [
+      ["fromYUI._attach/<.", "_attach"],
+      ["Y.ClassNameManager<", "ClassNameManager"],
+      ["fromExtJS.setVisible/cb<", "cb"],
+      ["fromDojo.registerWin/<", "registerWin"],
+    ],
+
+    annonymousProperty: [["jQuery.each(^)", "each"]],
+  };
+
+  Object.keys(cases).forEach(type => {
+    cases[type].forEach(([kase, expected]) => {
+      it(`${type} - ${kase}`, () =>
+        expect(simplifyDisplayName(kase)).toEqual(expected));
+    });
+  });
+});
diff --git a/devtools/client/debugger/src/utils/pause/frames/tests/getLibraryFromUrl.spec.js b/devtools/client/debugger/src/utils/pause/frames/tests/getLibraryFromUrl.spec.js
new file mode 100644
index 0000000000..afb8d7afc2
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/frames/tests/getLibraryFromUrl.spec.js
@@ -0,0 +1,129 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import { getLibraryFromUrl } from "../getLibraryFromUrl";
+import { makeMockFrameWithURL } from "../../../test-mockup";
+
+describe("getLibraryFromUrl", () => {
+  describe("When Preact is on the frame", () => {
+    it("should return Preact and not React", () => {
+      const frame = makeMockFrameWithURL(
+        "https://cdnjs.cloudflare.com/ajax/libs/preact/8.2.5/preact.js"
+      );
+      expect(getLibraryFromUrl(frame)).toEqual("Preact");
+    });
+  });
+
+  describe("When Vue is on the frame", () => {
+    it("should return VueJS for different builds", () => {
+      const buildTypeList = [
+        "vue.js",
+        "vue.common.js",
+        "vue.esm.js",
+        "vue.runtime.js",
+        "vue.runtime.common.js",
+        "vue.runtime.esm.js",
+        "vue.min.js",
+        "vue.runtime.min.js",
+      ];
+
+      buildTypeList.forEach(buildType => {
+        const frame = makeMockFrameWithURL(
+          `https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/${buildType}`
+        );
+        expect(getLibraryFromUrl(frame)).toEqual("VueJS");
+      });
+    });
+  });
+
+  describe("When React is in the URL", () => {
+    it("should not return React if it is not part of the filename", () => {
+      const notReactUrlList = [
+        "https://react.js.com/test.js",
+        "https://debugger-example.com/test.js",
+        "https://debugger-react-example.com/test.js",
+        "https://debugger-react-example.com/react/test.js",
+        "https://debugger-example.com/react-contextmenu.js",
+      ];
+      notReactUrlList.forEach(notReactUrl => {
+        const frame = makeMockFrameWithURL(notReactUrl);
+        expect(getLibraryFromUrl(frame)).toBeNull();
+      });
+    });
+    it("should return React if it is part of the filename", () => {
+      const reactUrlList = [
+        "https://debugger-example.com/react.js",
+        "https://debugger-example.com/react.development.js",
+        "https://debugger-example.com/react.production.min.js",
+        "https://debugger-react-example.com/react.js",
+        "https://debugger-react-example.com/react/react.js",
+        "https://debugger-example.com/react-dom.js",
+        "https://debugger-example.com/react-dom.development.js",
+        "https://debugger-example.com/react-dom.production.min.js",
+        "https://debugger-react-example.com/react-dom.js",
+        "https://debugger-react-example.com/react/react-dom.js",
+        "https://debugger-react-example.com/react-dom-dev.js",
+        "/node_modules/react/test.js",
+        "/node_modules/react-dev/test.js",
+        "/node_modules/react-dom/test.js",
+        "/node_modules/react-dom-dev/test.js",
+      ];
+      reactUrlList.forEach(reactUrl => {
+        const frame = makeMockFrameWithURL(reactUrl);
+        expect(getLibraryFromUrl(frame)).toEqual("React");
+      });
+    });
+  });
+
+  describe("When Angular is in the URL", () => {
+    it("should return Angular for AngularJS (1.x)", () => {
+      const frame = makeMockFrameWithURL(
+        "https://cdnjs.cloudflare.com/ajax/libs/angular/angular.js"
+      );
+      expect(getLibraryFromUrl(frame)).toEqual("Angular");
+    });
+
+    it("should return Angular for Angular (2.x)", () => {
+      const frame = makeMockFrameWithURL(
+        "https://stackblitz.io/turbo_modules/@angular/core@7.2.4/bundles/core.umd.js"
+      );
+      expect(getLibraryFromUrl(frame)).toEqual("Angular");
+    });
+
+    it("should not return Angular for Angular components", () => {
+      const frame = makeMockFrameWithURL(
+        "https://firefox-devtools-angular-log.stackblitz.io/~/src/app/hello.component.ts"
+      );
+      expect(getLibraryFromUrl(frame)).toBeNull();
+    });
+  });
+
+  describe("When zone.js is on the frame", () => {
+    it("should not return Angular when no callstack", () => {
+      const frame = makeMockFrameWithURL("/node_modules/zone/zone.js");
+      expect(getLibraryFromUrl(frame)).toBeNull();
+    });
+
+    it("should not return Angular when stack without Angular frames", () => {
+      const frame = makeMockFrameWithURL("/node_modules/zone/zone.js");
+      const callstack = [frame];
+
+      expect(getLibraryFromUrl(frame, callstack)).toBeNull();
+    });
+
+    it("should return Angular when stack with AngularJS (1.x) frames", () => {
+      const frame = makeMockFrameWithURL("/node_modules/zone/zone.js");
+      const callstack = [
+        frame,
+        makeMockFrameWithURL(
+          "https://cdnjs.cloudflare.com/ajax/libs/angular/angular.js"
+        ),
+      ];
+
+      expect(getLibraryFromUrl(frame, callstack)).toEqual("Angular");
+    });
+  });
+});