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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test that StyleSheetsActor.getText handles empty text correctly.
const CSS_CONTENT = "body { background-color: #f06; }";
const TEST_URI = `data:text/html;charset=utf-8,<style>${encodeURIComponent(
CSS_CONTENT
)}</style>`;
add_task(async function () {
const tab = await addTab(TEST_URI);
const commands = await CommandsFactory.forTab(tab);
await commands.targetCommand.startListening();
const target = commands.targetCommand.targetFront;
const styleSheetsFront = await target.getFront("stylesheets");
ok(styleSheetsFront, "The StyleSheetsFront was created.");
const sheets = [];
await commands.resourceCommand.watchResources(
[commands.resourceCommand.TYPES.STYLESHEET],
{
onAvailable: resources => sheets.push(...resources),
}
);
is(sheets.length, 1, "watchResources returned the correct number of sheets");
const { resourceId } = sheets[0];
is(
await getStyleSheetText(styleSheetsFront, resourceId),
CSS_CONTENT,
"The stylesheet has expected initial text"
);
info("Update stylesheet content via the styleSheetsFront");
await styleSheetsFront.update(resourceId, "", false);
is(
await getStyleSheetText(styleSheetsFront, resourceId),
"",
"Stylesheet is now empty, as expected"
);
await commands.destroy();
});
async function getStyleSheetText(styleSheetsFront, resourceId) {
const longStringFront = await styleSheetsFront.getText(resourceId);
return longStringFront.string();
}
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