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Diffstat (limited to 'testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.actualBoundingBox.worker.js')
-rw-r--r-- | testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.actualBoundingBox.worker.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.actualBoundingBox.worker.js b/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.actualBoundingBox.worker.js new file mode 100644 index 0000000000..c3d18ff878 --- /dev/null +++ b/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.actualBoundingBox.worker.js @@ -0,0 +1,46 @@ +// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. +// OffscreenCanvas test in a worker:2d.text.measure.actualBoundingBox +// Description:Testing actualBoundingBox +// Note: + +importScripts("/resources/testharness.js"); +importScripts("/html/canvas/resources/canvas-tests.js"); + +promise_test(async t => { + + var canvas = new OffscreenCanvas(100, 50); + var ctx = canvas.getContext('2d'); + + var f = new FontFace("CanvasTest", "url('/fonts/CanvasTest.ttf')"); + f.load(); + self.fonts.add(f); + await self.fonts.ready; + ctx.font = '50px CanvasTest'; + ctx.direction = 'ltr'; + ctx.align = 'left' + ctx.baseline = 'alphabetic' + // Different platforms may render text slightly different. + // Values that are nominally expected to be zero might actually vary by a + // pixel or so if the UA accounts for antialiasing at glyph edges, so we + // allow a slight deviation. + _assert(Math.abs(ctx.measureText('A').actualBoundingBoxLeft) <= 1, "Math.abs(ctx.measureText('A').actualBoundingBoxLeft) <= 1"); + _assert(ctx.measureText('A').actualBoundingBoxRight >= 50, "ctx.measureText('A').actualBoundingBoxRight >= 50"); + _assert(ctx.measureText('A').actualBoundingBoxAscent >= 35, "ctx.measureText('A').actualBoundingBoxAscent >= 35"); + _assert(Math.abs(ctx.measureText('A').actualBoundingBoxDescent) <= 1, "Math.abs(ctx.measureText('A').actualBoundingBoxDescent) <= 1"); + + _assert(ctx.measureText('D').actualBoundingBoxLeft >= 48, "ctx.measureText('D').actualBoundingBoxLeft >= 48"); + _assert(ctx.measureText('D').actualBoundingBoxLeft <= 52, "ctx.measureText('D').actualBoundingBoxLeft <= 52"); + _assert(ctx.measureText('D').actualBoundingBoxRight >= 75, "ctx.measureText('D').actualBoundingBoxRight >= 75"); + _assert(ctx.measureText('D').actualBoundingBoxRight <= 80, "ctx.measureText('D').actualBoundingBoxRight <= 80"); + _assert(ctx.measureText('D').actualBoundingBoxAscent >= 35, "ctx.measureText('D').actualBoundingBoxAscent >= 35"); + _assert(ctx.measureText('D').actualBoundingBoxAscent <= 40, "ctx.measureText('D').actualBoundingBoxAscent <= 40"); + _assert(ctx.measureText('D').actualBoundingBoxDescent >= 12, "ctx.measureText('D').actualBoundingBoxDescent >= 12"); + _assert(ctx.measureText('D').actualBoundingBoxDescent <= 15, "ctx.measureText('D').actualBoundingBoxDescent <= 15"); + + _assert(Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) <= 1, "Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft) <= 1"); + _assert(ctx.measureText('ABCD').actualBoundingBoxRight >= 200, "ctx.measureText('ABCD').actualBoundingBoxRight >= 200"); + _assert(ctx.measureText('ABCD').actualBoundingBoxAscent >= 85, "ctx.measureText('ABCD').actualBoundingBoxAscent >= 85"); + _assert(ctx.measureText('ABCD').actualBoundingBoxDescent >= 37, "ctx.measureText('ABCD').actualBoundingBoxDescent >= 37"); + t.done(); +}, "Testing actualBoundingBox"); +done(); |