mozilla-central/devtools/client/debugger/test/mochitest/browser_dbg-preview.js (file symbol)

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Test Info: Warnings

/* 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/>. */
// Test hovering on an object, which will show a popup and on a
// simple value, which will show a tooltip.
"use strict";
// Showing/hiding the preview tooltip can be slow as we wait for CodeMirror scroll...
requestLongerTimeout(2);
add_task(async function () {
const dbg = await initDebugger("doc-preview.html", "preview.js");
await testPreviews(dbg, "testInline", [
{ line: 17, column: 16, expression: "prop", result: 2 },
]);
await selectSource(dbg, "preview.js");
await testBucketedArray(dbg);
await testPreviews(dbg, "empties", [
{ line: 6, column: 9, expression: "a", result: '""' },
{ line: 7, column: 9, expression: "b", result: "false" },
{ line: 8, column: 9, expression: "c", result: "undefined" },
{ line: 9, column: 9, expression: "d", result: "null" },
]);
await testPreviews(dbg, "objects", [
{ line: 27, column: 10, expression: "empty", result: "Object" },
{ line: 28, column: 22, expression: "foo", result: 1 },
]);
await testPreviews(dbg, "smalls", [
{ line: 14, column: 9, expression: "a", result: '"..."' },
{ line: 15, column: 9, expression: "b", result: "true" },
{ line: 16, column: 9, expression: "c", result: "1" },
{
line: 17,
column: 9,
expression: "d",
fields: [["length", "0"]],
},
]);
await testPreviews(dbg, "classPreview", [
{ line: 50, column: 20, expression: "x", result: 1 },
{ line: 50, column: 29, expression: "#privateVar", result: 2 },
{
line: 50,
column: 47,
expression: "#privateStatic",
fields: [
["first", `"a"`],
["second", `"b"`],
],
},
{
line: 51,
column: 26,
expression: "this",
fields: [
["x", "1"],
["#privateVar", "2"],
],
},
{ line: 51, column: 39, expression: "#privateVar", result: 2 },
]);
await testPreviews(dbg, "multipleTokens", [
{ line: 81, column: 4, expression: "foo", result: "Object" },
{ line: 81, column: 11, expression: "blip", result: "Object" },
{ line: 82, column: 8, expression: "bar", result: "Object" },
{ line: 84, column: 16, expression: "boom", result: `0` },
]);
await testHoveringInvalidTargetTokens(dbg);
info(
"Check that closing the preview tooltip doesn't release the underlying object actor"
);
invokeInTab("classPreview");
await waitForPaused(dbg);
info("Display popup a first time and hide it");
await assertPreviews(dbg, [
{
line: 60,
column: 7,
expression: "y",
fields: [["hello", "{…}"]],
},
]);
info("Display the popup again and try to expand a property");
const { element: popupEl, tokenEl } = await tryHovering(
dbg,
60,
7,
"previewPopup"
);
const nodes = popupEl.querySelectorAll(".preview-popup .node");
const initialNodesLength = nodes.length;
nodes[1].querySelector(".arrow").click();
await waitFor(
() =>
popupEl.querySelectorAll(".preview-popup .node").length >
initialNodesLength
);
ok(true, `"hello" was expanded`);
await closePreviewForToken(dbg, tokenEl, "popup");
await resume(dbg);
await testMovingFromATokenToAnother(dbg);
});
async function testPreviews(dbg, fnName, previews) {
invokeInTab(fnName);
await waitForPaused(dbg);
await assertPreviews(dbg, previews);
await resume(dbg);
info(`Ran tests for ${fnName}`);
}
async function testHoveringInvalidTargetTokens(dbg) {
// Test hovering tokens for which we shouldn't have a preview popup displayed
invokeInTab("invalidTargets");
await waitForPaused(dbg);
// CodeMirror refreshes after inline previews are displayed, so wait until they're rendered.
await waitForInlinePreviews(dbg);
await assertNoPreviews(dbg, `"a"`, 69, 4);
await assertNoPreviews(dbg, `false`, 70, 4);
await assertNoPreviews(dbg, `undefined`, 71, 4);
await assertNoPreviews(dbg, `null`, 72, 4);
await assertNoPreviews(dbg, `42`, 73, 4);
await assertNoPreviews(dbg, `const`, 74, 4);
// checking inline preview widget
// Move the cursor to the top left corner to have a clean state
resetCursorPositionToTopLeftCorner(dbg);
const inlinePreviewEl = findElementWithSelector(
dbg,
".CodeMirror-code .CodeMirror-widget"
);
is(inlinePreviewEl.innerText, `myVar:"foo"`, "got expected inline preview");
const racePromise = Promise.any([
waitForElement(dbg, "previewPopup"),
wait(500).then(() => "TIMEOUT"),
]);
// Hover over the inline preview element
hoverToken(inlinePreviewEl);
const raceResult = await racePromise;
is(raceResult, "TIMEOUT", "No popup was displayed over the inline preview");
await resume(dbg);
}
async function assertNoPreviews(dbg, expression, line, column) {
// Move the cursor to the top left corner to have a clean state
resetCursorPositionToTopLeftCorner(dbg);
// Hover the token
const result = await Promise.race([
tryHoverTokenAtLine(dbg, expression, line, column, "previewPopup"),
wait(500).then(() => "TIMEOUT"),
]);
is(result, "TIMEOUT", `No popup was displayed when hovering "${expression}"`);
}
function resetCursorPositionToTopLeftCorner(dbg) {
EventUtils.synthesizeMouse(
findElement(dbg, "codeMirror"),
0,
0,
{
type: "mousemove",
},
dbg.win
);
}
async function testMovingFromATokenToAnother(dbg) {
info(
"Check that moving the mouse to another token when popup is displayed updates highlighted token and popup position"
);
invokeInTab("classPreview");
await waitForPaused(dbg);
info("Hover token `Foo` in `Foo.#privateStatic` expression");
const fooTokenEl = getTokenElAtLine(dbg, "Foo", 50, 44);
const cm = getCM(dbg);
const onScrolled = waitForScrolling(cm);
cm.scrollIntoView({ line: 49, ch: 0 }, 0);
await onScrolled;
const { element: fooPopupEl } = await tryHoverToken(dbg, fooTokenEl, "popup");
ok(!!fooPopupEl, "popup is displayed");
ok(
fooTokenEl.classList.contains("preview-token"),
"`Foo` token is highlighted"
);
// store original position
const originalPopupPosition = fooPopupEl.getBoundingClientRect().x;
info(
"Move mouse over the `#privateStatic` token in `Foo.#privateStatic` expression"
);
const privateStaticTokenEl = getTokenElAtLine(dbg, "#privateStatic", 50, 48);
// The sequence of event to trigger the bug this is covering isn't easily reproducible
// by firing a few chosen events (because of React async rendering), so we are going to
// mimick moving the mouse from the `Foo` to `#privateStatic` in a given amount of time
// So get all the different token quads to compute their center
const fooTokenQuad = fooTokenEl.getBoxQuads()[0];
const privateStaticTokenQuad = privateStaticTokenEl.getBoxQuads()[0];
const fooXCenter =
fooTokenQuad.p1.x + (fooTokenQuad.p2.x - fooTokenQuad.p1.x) / 2;
const fooYCenter =
fooTokenQuad.p1.y + (fooTokenQuad.p3.y - fooTokenQuad.p1.y) / 2;
const privateStaticXCenter =
privateStaticTokenQuad.p1.x +
(privateStaticTokenQuad.p2.x - privateStaticTokenQuad.p1.x) / 2;
const privateStaticYCenter =
privateStaticTokenQuad.p1.y +
(privateStaticTokenQuad.p3.y - privateStaticTokenQuad.p1.y) / 2;
// we can then compute the distance to cover between the two token centers
const xDistance = privateStaticXCenter - fooXCenter;
const yDistance = privateStaticYCenter - fooYCenter;
const movementDuration = 50;
const xIncrements = xDistance / movementDuration;
const yIncrements = yDistance / movementDuration;
// Finally, we're going to fire a mouseover event every ms
info("Move mousecursor between the `Foo` token to the `#privateStatic` one");
for (let i = 0; i < movementDuration; i++) {
const x = fooXCenter + (yDistance + i * xIncrements);
const y = fooYCenter + (yDistance + i * yIncrements);
EventUtils.synthesizeMouseAtPoint(
x,
y,
{
type: "mouseover",
},
fooTokenEl.ownerGlobal
);
await wait(1);
}
info("Wait for the popup to display the data for `#privateStatic`");
await waitFor(() => {
const popup = findElement(dbg, "popup");
if (!popup) {
return false;
}
// for `Foo`, the header text content is "Foo", so when it's "Object", we know the
// popup was updated
return (
popup.querySelector(".preview-popup .node .objectBox")?.textContent ===
"Object"
);
});
ok(true, "Popup is displayed for #privateStatic");
ok(
!fooTokenEl.classList.contains("preview-token"),
"`Foo` token is not highlighted anymore"
);
ok(
privateStaticTokenEl.classList.contains("preview-token"),
"`#privateStatic` token is highlighted"
);
const privateStaticPopupEl = await waitForElement(dbg, "popup");
const newPopupPosition = privateStaticPopupEl.getBoundingClientRect().x;
isnot(
Math.round(newPopupPosition),
Math.round(originalPopupPosition),
`Popup position was updated`
);
await resume(dbg);
}
async function testBucketedArray(dbg) {
invokeInTab("largeArray");
await waitForPaused(dbg);
const { element: popupEl, tokenEl } = await tryHovering(
dbg,
34,
10,
"previewPopup"
);
info("Wait for top level node to expand and child nodes to load");
await waitUntil(
() => popupEl.querySelectorAll(".preview-popup .node").length > 1
);
const oiNodes = Array.from(popupEl.querySelectorAll(".preview-popup .node"));
const displayedPropertyNames = oiNodes.map(
oiNode => oiNode.querySelector(".object-label")?.textContent
);
Assert.deepEqual(displayedPropertyNames, [
null, // No property name is displayed for the root node
"[0…99]",
"[100…100]",
"length",
"<prototype>",
]);
const node = oiNodes.find(
oiNode => oiNode.querySelector(".object-label")?.textContent === "length"
);
if (!node) {
ok(false, `The "length" property is not displayed in the popup`);
} else {
is(
node.querySelector(".objectBox").textContent,
"101",
`The "length" property has the expected value`
);
}
await closePreviewForToken(dbg, tokenEl, "popup");
await resume(dbg);
}