description("Test that invalid canvas getContext() requests return null."); canvas = document.createElement('canvas'); shouldBe("canvas.getContext('')", "null"); shouldBe("canvas.getContext('2d#')", "null"); shouldBe("canvas.getContext('This is clearly not a valid context name.')", "null"); shouldBe("canvas.getContext('2d\0')", "null"); shouldBe("canvas.getContext('2\uFF44')", "null"); shouldBe("canvas.getContext('2D')", "null"); shouldThrow("canvas.getContext()"); shouldBe("canvas.getContext('null')", "null"); shouldBe("canvas.getContext('undefined')", "null");