human
Solve the following python programming problem given the following code:
def check(self, img, colors) : 
    glClear (GL_COLOR_BUFFER_BIT) 
    glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST) 
    glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST) 
    img.blit (img.anchor_x, img.anchor_y) 
    buffer = image.get_buffer_manager ().get_color_buffer ().get_image_data () 
    bytes = buffer.get_data ('RGBA', (buffer.width * 4)) 
    def sample(x, y) : 
        i = ((y * buffer.pitch) + (x * len (buffer.format))) 
        (r, g, b, _) = bytes [i : (i + len (buffer.format))] 
        if (type (r) is str) : 
            (r, g, b) = map (ord, (r, g, b)) 
return { 
            (255, 0, 0) : 'r', 
            (0, 255, 0) : 'g', 
            (0, 0, 255) : 'b', 
            (255, 0, 255) : 'm', 
}.get ((r, g, b), 'x') 
samples = ''.join ([sample (3, 3), sample (3, 0), sample (0, 0), sample (0, 3)]) 
    self.assertTrue ((samples == colors), self) 

    
    

    Fix the buggy line: self.assertTrue ((samples == colors), self)
assistant
#Here is Python code to fix the buggy line: self.

self.assertTrue ((samples == colors), samples)