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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Tests that flame graph widget works properly.
const { FlameGraph } = require("devtools/client/shared/widgets/FlameGraph");
add_task(async function() {
await addTab("about:blank");
await performTest();
gBrowser.removeCurrentTab();
});
async function performTest() {
const { host, doc } = await createHost();
doc.body.setAttribute(
"style",
"position: fixed; width: 100%; height: 100%; margin: 0;"
);
const graph = new FlameGraph(doc.body);
let readyEventEmitted;
graph.once("ready", () => {
readyEventEmitted = true;
});
await graph.ready();
ok(readyEventEmitted, "The 'ready' event should have been emitted");
testGraph(host, graph);
await graph.destroy();
host.destroy();
}
function testGraph(host, graph) {
ok(
graph._container.classList.contains("flame-graph-widget-container"),
"The correct graph container was created."
);
ok(
graph._canvas.classList.contains("flame-graph-widget-canvas"),
"The correct graph container was created."
);
const bounds = host.frame.getBoundingClientRect();
is(
graph.width,
Math.round(bounds.width * window.devicePixelRatio),
"The graph has the correct width."
);
is(
graph.height,
Math.round(bounds.height * window.devicePixelRatio),
"The graph has the correct height."
);
ok(
graph._selection.start === null,
"The graph's selection start value is initially null."
);
ok(
graph._selection.end === null,
"The graph's selection end value is initially null."
);
ok(
graph._selectionDragger.origin === null,
"The graph's dragger origin value is initially null."
);
ok(
graph._selectionDragger.anchor.start === null,
"The graph's dragger anchor start value is initially null."
);
ok(
graph._selectionDragger.anchor.end === null,
"The graph's dragger anchor end value is initially null."
);
}
|
