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/* 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/>. */
// Tests adding, disble/enable, and removal of dom mutation breakpoints
"use strict";
// Import helpers for the inspector
Services.scriptloader.loadSubScript(
"chrome://mochitests/content/browser/devtools/client/inspector/test/shared-head.js",
this
);
const DMB_TEST_URL =
"https://example.com/browser/devtools/client/debugger/test/mochitest/examples/doc-dom-mutation.html";
async function enableMutationBreakpoints() {
await pushPref("devtools.debugger.dom-mutation-breakpoints-visible", true);
}
add_task(async function () {
// Enable features
await enableMutationBreakpoints();
await pushPref("devtools.debugger.map-scopes-enabled", true);
info("Switches over to the inspector pane");
const { inspector, toolbox } = await openInspectorForURL(DMB_TEST_URL);
{
info("Selecting the body node");
await selectNode("body", inspector);
info("Adding DOM mutation breakpoints to body");
const allMenuItems = openContextMenuAndGetAllItems(inspector);
const attributeMenuItem = allMenuItems.find(
item => item.id === "node-menu-mutation-breakpoint-attribute"
);
attributeMenuItem.click();
const subtreeMenuItem = allMenuItems.find(
item => item.id === "node-menu-mutation-breakpoint-subtree"
);
subtreeMenuItem.click();
}
{
info("Find and expand the shadow host.");
const hostFront = await getNodeFront("#host", inspector);
const hostContainer = inspector.markup.getContainer(hostFront);
await expandContainer(inspector, hostContainer);
info("Expand the shadow root");
const shadowRootContainer = hostContainer.getChildContainers()[0];
await expandContainer(inspector, shadowRootContainer);
info("Select the div under the shadow root");
const divContainer = shadowRootContainer.getChildContainers()[0];
await selectNode(divContainer.node, inspector);
const allMenuItems = openContextMenuAndGetAllItems(inspector);
info("Adding attribute breakpoint.");
const attributeMenuItem = allMenuItems.find(
item => item.id === "node-menu-mutation-breakpoint-attribute"
);
attributeMenuItem.click();
}
info("Switches over to the debugger pane");
await toolbox.selectTool("jsdebugger");
const dbg = createDebuggerContext(toolbox);
info("Confirms that one DOM mutation breakpoint exists");
const mutationItem = await waitForElement(dbg, "domMutationItem");
ok(mutationItem, "A DOM mutation breakpoint exists");
mutationItem.scrollIntoView();
info("Enabling and disabling the DOM mutation breakpoint works");
const checkbox = mutationItem.querySelector("input");
checkbox.click();
await waitFor(() => !checkbox.checked);
checkbox.click();
await waitFor(() => checkbox.checked);
info("Changing attribute to trigger debugger pause");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#attribute").click();
});
await waitForPaused(dbg);
let whyPaused = await waitFor(
() => dbg.win.document.querySelector(".why-paused")?.innerText
);
is(
whyPaused,
`Paused on DOM mutation\nDOM Mutation: 'attributeModified'\nbody`
);
await resume(dbg);
info("Changing style to trigger debugger pause");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#style-attribute").click();
});
await waitForPaused(dbg);
await resume(dbg);
info("Changing attribute in shadow dom to trigger debugger pause");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#shadow-attribute").click();
});
await waitForPaused(dbg);
await resume(dbg);
info("Adding element in subtree to trigger debugger pause");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#add-in-subtree").click();
});
await waitForPaused(dbg);
whyPaused = await waitFor(
() => dbg.win.document.querySelector(".why-paused")?.innerText
);
is(
whyPaused,
`Paused on DOM mutation\nDOM Mutation: 'subtreeModified'\nbodyAdded:div#dynamic`
);
await resume(dbg);
info("Removing element in subtree to trigger debugger pause");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#remove-in-subtree").click();
});
await waitForPaused(dbg);
whyPaused = await waitFor(
() => dbg.win.document.querySelector(".why-paused")?.innerText
);
is(
whyPaused,
`Paused on DOM mutation\nDOM Mutation: 'subtreeModified'\nbodyRemoved:div#dynamic`
);
await resume(dbg);
info("Blackboxing the source prevents debugger pause");
const source = await waitForSource(dbg, "dom-mutation.original.js");
await selectSource(dbg, source);
await clickElement(dbg, "blackbox");
await waitForDispatch(dbg.store, "BLACKBOX_WHOLE_SOURCES");
SpecialPowers.spawn(gBrowser.selectedBrowser, [], function () {
content.document.querySelector("#blackbox").click();
});
await waitForPaused(dbg, "click.js");
await resume(dbg);
await selectSource(dbg, source);
await clickElement(dbg, "blackbox");
await waitForDispatch(dbg.store, "UNBLACKBOX_WHOLE_SOURCES");
info("Removing breakpoints works");
dbg.win.document.querySelector(".dom-mutation-list .close-btn").click();
await waitForAllElements(dbg, "domMutationItem", 2, true);
});
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