CONSOLE MESSAGE: WebGL: ERROR: 0:1: 'INVALID' : syntax error
CONSOLE MESSAGE: WebGL: ERROR: 0:1: 'INVALID' : syntax error
Test compilation of shaders after being attached to a program, with and without syntax errors.


== Running test suite: Canvas.updateShader
-- Running test case: Canvas.updateShader.vertexShaderValid

    void main(void) {
        gl_Position = vec4(1, 2, 3, 4);
    }


-- Running test case: Canvas.updateShader.fragmentShaderValid

    precision mediump float;

    void main(void) {
        gl_FragColor = vec4(0.1, 0.2, 0.3, 0.4);
    }


-- Running test case: Canvas.updateShader.invalidProgramId
PASS: Should produce an error.
Error: No shader program for given identifier.

-- Running test case: Canvas.updateShader.invalidShaderType
PASS: Should produce an error.
Error: No shader for given type.

-- Running test case: Canvas.updateShader.invalidVertexShaderSource
PASS: Should produce error.
Error: Shader compilation failed.

-- Running test case: Canvas.updateShader.invalidFragmentShaderSource
PASS: Should produce error.
Error: Shader compilation failed.