| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../http/tests/inspector/resources/inspector-test.js"></script> |
| <script> |
| function load() { |
| window.context2d = document.createElement("canvas").getContext("2d"); |
| window.context2d.fillStyle = "rgba(255, 0, 0, 0.5)"; // Half-transparent red |
| window.context2d.fillRect(0, 0, 300, 150); |
| |
| runTest(); |
| } |
| |
| function test() { |
| let suite = InspectorTest.createAsyncSuite("Canvas.requestContent2D"); |
| |
| suite.addTestCase({ |
| name: "Canvas.requestContent2D.validCanvasId", |
| description: "Get the base64 encoded data for the canvas on the page with the given type.", |
| test(resolve, reject) { |
| let canvas = Array.from(WI.canvasManager.canvasCollection).find((canvas) => canvas.contextType === WI.Canvas.ContextType.Canvas2D); |
| if (!canvas) { |
| reject(`Missing Canvas.`); |
| return; |
| } |
| |
| CanvasAgent.requestContent(canvas.identifier) |
| .then(({content}) => InspectorTest.expectGreaterThan(content.length, "data:image/png;base64,".length, "Content should not be empty.")) |
| .then(resolve, reject); |
| } |
| }); |
| |
| // ------ |
| |
| suite.addTestCase({ |
| name: "Canvas.requestContent.invalidCanvasId", |
| description: "Invalid canvas identifiers should cause an error.", |
| test(resolve, reject) { |
| const canvasId = "DOES_NOT_EXIST"; |
| CanvasAgent.requestContent(canvasId, (error) => { |
| InspectorTest.expectThat(error, "Should produce an error."); |
| InspectorTest.log("Error: " + error); |
| resolve(); |
| }); |
| } |
| }); |
| |
| suite.runTestCasesAndFinish(); |
| } |
| </script> |
| </head> |
| <body onload="load()"> |
| <p>Test that CanvasAgent.requestContent can retrieve a dataURL with the current content of the 2D canvas.</p> |
| </body> |
| </html> |
