Test that functions returning strings really do return strings (and not e.g. null)

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS gl.getShaderSource(vs) returns a string
PASS gl.getShaderInfoLog(vs) returns a string
PASS gl.getShaderSource(vs) returns a string
PASS gl.getShaderInfoLog(vs) returns a string
PASS gl.getShaderSource(fs) returns a string
PASS gl.getShaderInfoLog(fs) returns a string
PASS gl.getShaderSource(fs) returns a string
PASS gl.getShaderInfoLog(fs) returns a string
PASS gl.getProgramInfoLog(prog) returns a string
PASS gl.getProgramInfoLog(prog) returns a string
PASS getSupportedExtensions() returns an array of strings
PASS gl.getParameter(gl.VENDOR) returns a string
PASS gl.getParameter(gl.RENDERER) returns a string
PASS gl.getParameter(gl.VERSION) returns a string
PASS gl.getParameter(gl.SHADING_LANGUAGE_VERSION) returns a string

PASS successfullyParsed is true

TEST COMPLETE