Function setupCanvasMock

Returns {
    mockCanvasContext: {
        arc: Mock<Procedure>;
        beginPath: Mock<Procedure>;
        clearRect: Mock<Procedure>;
        fill: Mock<Procedure>;
        fillRect: Mock<Procedure>;
        fillStyle: string;
        fillText: Mock<Procedure>;
        font: string;
        lineCap: string;
        lineJoin: string;
        lineTo: Mock<Procedure>;
        lineWidth: number;
        moveTo: Mock<Procedure>;
        scale: Mock<Procedure>;
        setLineDash: Mock<Procedure>;
        stroke: Mock<Procedure>;
        strokeRect: Mock<Procedure>;
        strokeStyle: string;
    };
    mockGetContext: Mock<Procedure>;
}