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Diffstat (limited to '')
-rw-r--r-- | devtools/client/inspector/fonts/test/browser_fontinspector_edit-previews.js | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/devtools/client/inspector/fonts/test/browser_fontinspector_edit-previews.js b/devtools/client/inspector/fonts/test/browser_fontinspector_edit-previews.js new file mode 100644 index 0000000000..b29be4ca3f --- /dev/null +++ b/devtools/client/inspector/fonts/test/browser_fontinspector_edit-previews.js @@ -0,0 +1,70 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ +"use strict"; + +// Test that previews change when the preview text changes. It doesn't check the +// exact preview images because they are drawn on a canvas causing them to vary +// between systems, platforms and software versions. + +const TEST_URI = URL_ROOT + "doc_browser_fontinspector.html"; + +add_task(async function () { + const { view, inspector } = await openFontInspectorForURL(TEST_URI); + const viewDoc = view.document; + await selectNode("div", inspector); + await expandFontsAccordion(viewDoc); + + const previews = viewDoc.querySelectorAll("#font-container .font-preview"); + const initialPreviews = [...previews].map(p => p.src); + + info("Typing 'Abc' to check that the reference previews are correct."); + await updatePreviewText(view, "Abc"); + checkPreviewImages(viewDoc, initialPreviews, true); + + info("Typing something else to the preview box."); + await updatePreviewText(view, "The quick brown"); + checkPreviewImages(viewDoc, initialPreviews, false); + + info("Blanking the input to restore default previews."); + await updatePreviewText(view, ""); + checkPreviewImages(viewDoc, initialPreviews, true); +}); + +/** + * Compares the previous preview image URIs to the current URIs. + * + * @param {Document} viewDoc + * The FontInspector document. + * @param {Array[String]} originalURIs + * An array of URIs to compare with the current URIs. + * @param {Boolean} assertIdentical + * If true, this method asserts that the previous and current URIs are + * identical. If false, this method asserts that the previous and current + * URI's are different. + */ +function checkPreviewImages(viewDoc, originalURIs, assertIdentical) { + const previews = viewDoc.querySelectorAll("#font-container .font-preview"); + const newURIs = [...previews].map(p => p.src); + + is( + newURIs.length, + originalURIs.length, + "The number of previews has not changed." + ); + + for (let i = 0; i < newURIs.length; ++i) { + if (assertIdentical) { + is( + newURIs[i], + originalURIs[i], + `The preview image at index ${i} has stayed the same.` + ); + } else { + isnot( + newURIs[i], + originalURIs[i], + `The preview image at index ${i} has changed.` + ); + } + } +} |