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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const { drawText } = require("devtools/client/memory/components/tree-map/draw");
function run_test() {
run_next_test();
}
add_task(function* () {
// Mock out the Canvas2dContext
let ctx = {
fillText: (...args) => fillTextValues.push(args),
measureText: (text) => {
let width = text ? text.length * 10 : 0;
return { width };
}
};
let node = {
x: 20,
y: 30,
dx: 500,
dy: 70,
name: "Example Node",
totalBytes: 1200,
totalCount: 100
};
let ratio = 0;
let borderWidth = () => 1;
let dragZoom = {
offsetX: 0,
offsetY: 0,
zoom: 0
};
let fillTextValues = [];
let padding = [10, 10];
drawText(ctx, node, borderWidth, ratio, dragZoom, padding);
deepEqual(fillTextValues[0], ["Example Node", 11.5, 21.5],
"Fills in the full node name");
deepEqual(fillTextValues[1], ["1KiB 100 count", 141.5, 21.5],
"Includes the full byte and count information");
fillTextValues = [];
node.dx = 250;
drawText(ctx, node, borderWidth, ratio, dragZoom, padding);
deepEqual(fillTextValues[0], ["Example Node", 11.5, 21.5],
"Fills in the full node name");
deepEqual(fillTextValues[1], undefined,
"Drops off the byte and count information if not enough room");
fillTextValues = [];
node.dx = 100;
drawText(ctx, node, borderWidth, ratio, dragZoom, padding);
deepEqual(fillTextValues[0], ["Exampl...", 11.5, 21.5],
"Cuts the name with ellipsis");
deepEqual(fillTextValues[1], undefined,
"Drops off the byte and count information if not enough room");
fillTextValues = [];
node.dx = 40;
drawText(ctx, node, borderWidth, ratio, dragZoom, padding);
deepEqual(fillTextValues[0], ["...", 11.5, 21.5],
"Shows only ellipsis when smaller");
deepEqual(fillTextValues[1], undefined,
"Drops off the byte and count information if not enough room");
fillTextValues = [];
node.dx = 20;
drawText(ctx, node, borderWidth, ratio, dragZoom, padding);
deepEqual(fillTextValues[0], undefined,
"Draw nothing when not enough room");
deepEqual(fillTextValues[1], undefined,
"Drops off the byte and count information if not enough room");
});
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