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Side by Side Diff: LayoutTests/fast/canvas/script-tests/canvas-overloads-drawImage.js

Issue 284163002: Better arity checks for overloads (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Return properly Created 6 years, 7 months ago
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1 description("Test the behavior of CanvasRenderingContext2D.drawImage() when call ed with different numbers of arguments."); 1 description("Test the behavior of CanvasRenderingContext2D.drawImage() when call ed with different numbers of arguments.");
2 2
3 var ctx = document.createElement('canvas').getContext('2d'); 3 var ctx = document.createElement('canvas').getContext('2d');
4 4
5 function ExpectedNotEnoughArgumentsMessage(num) {
6 return "\"TypeError: Failed to execute 'drawImage' on 'CanvasRenderingContex t2D': 3 arguments required, but only " + num + " present.\"";
7 }
8
9 var TypeError = "TypeError: Failed to execute 'drawImage' on 'CanvasRenderingCon text2D': No function was found that matched the signature provided.";
10
11 var imageElement = document.createElement("img"); 5 var imageElement = document.createElement("img");
12 shouldThrow("ctx.drawImage()", ExpectedNotEnoughArgumentsMessage(0)); 6 shouldThrow("ctx.drawImage()");
13 shouldThrow("ctx.drawImage(imageElement)", ExpectedNotEnoughArgumentsMessage(1)) ; 7 shouldThrow("ctx.drawImage(imageElement)");
14 shouldThrow("ctx.drawImage(imageElement, 0)", ExpectedNotEnoughArgumentsMessage( 2)); 8 shouldThrow("ctx.drawImage(imageElement, 0)");
15 shouldBe("ctx.drawImage(imageElement, 0, 0)", "undefined"); 9 shouldBe("ctx.drawImage(imageElement, 0, 0)", "undefined");
16 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0)", "TypeError"); 10 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0)");
17 shouldBe("ctx.drawImage(imageElement, 0, 0, 0, 0)", "undefined"); 11 shouldBe("ctx.drawImage(imageElement, 0, 0, 0, 0)", "undefined");
18 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0)", "TypeError"); 12 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0)");
19 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0)", "TypeError"); 13 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0)");
20 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0)", "TypeError"); 14 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0)");
21 shouldBe("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0)", "undefined"); 15 shouldBe("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0)", "undefined");
22 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0, 0)", "TypeError "); 16 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0, 0)");
23 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)", "TypeEr ror"); 17 shouldThrow("ctx.drawImage(imageElement, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)");
24 18
25 var canvasElement = document.createElement("canvas"); 19 var canvasElement = document.createElement("canvas");
26 shouldThrow("ctx.drawImage(canvasElement)", ExpectedNotEnoughArgumentsMessage(1) ); 20 shouldThrow("ctx.drawImage(canvasElement)");
27 shouldThrow("ctx.drawImage(canvasElement, 0)", ExpectedNotEnoughArgumentsMessage (2)); 21 shouldThrow("ctx.drawImage(canvasElement, 0)");
28 shouldBe("ctx.drawImage(canvasElement, 0, 0)", "undefined"); 22 shouldBe("ctx.drawImage(canvasElement, 0, 0)", "undefined");
29 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0)", "TypeError"); 23 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0)");
30 shouldBe("ctx.drawImage(canvasElement, 0, 0, 0, 0)", "undefined"); 24 shouldBe("ctx.drawImage(canvasElement, 0, 0, 0, 0)", "undefined");
31 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0)", "TypeError"); 25 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0)");
32 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0)", "TypeError"); 26 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0)");
33 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0)", "TypeError"); 27 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0)");
34 shouldBe("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0)", "undefined"); 28 shouldBe("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0)", "undefined");
35 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0, 0)", "TypeErro r"); 29 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0, 0)");
36 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)", "TypeE rror"); 30 shouldThrow("ctx.drawImage(canvasElement, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)");
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