def test_create(self):
" Test ShaderObject.vertex and ShaderObject.fragment "
vert_obj = ShaderObject.vertex()
frag_obj = ShaderObject.fragment()
self.assertIs(type(vert_obj), ShaderObject, 'vertex did not returned a ShaderObject.')
self.assertIs(type(frag_obj), ShaderObject, 'fragment did not returned a ShaderObject.')
def test_shader_type(self):
" Test descriptors "
vert_obj = ShaderObject.vertex()
frag_obj = ShaderObject.fragment()
self.assertEqual(GL_VERTEX_SHADER, vert_obj.type, 'type is not vertex')
self.assertEqual(GL_FRAGMENT_SHADER, frag_obj.type, 'type is not fragment')
def test_valid(self):
" Test if generated objects are valid"
vert_obj = ShaderObject.vertex()
frag_obj = ShaderObject.fragment()
bad_obj = ShaderObject(8000, owned=True)
borrowed_obj = ShaderObject(glCreateShader(GL_VERTEX_SHADER), owned=True)
self.assertTrue(vert_obj.valid(), 'vertex shader is not valid')
self.assertTrue(frag_obj.valid(), 'fragment shader is not valid')
self.assertTrue(borrowed_obj.valid(), 'other vertex shader is not valid')
self.assertFalse(bad_obj.valid(), 'bad shader is valid')
self.assertTrue(vert_obj, 'vertex shader is not valid')
self.assertFalse(bad_obj, 'bad shader is valid')
def get_objects(self, name='shader1'):
vert = ShaderObject.vertex()
frag = ShaderObject.fragment()
with open(vert_path(name), 'r') as f:
vert.source = f.read()
self.assertEqual(True, vert.compile(), 'vert compilation failed')
with open(frag_path(name), 'r') as f:
frag.source = f.read()
self.assertEqual(True, frag.compile(), 'frag compilation failed')
return vert, frag
def test_link(self):
"Test if a shader program links correctly"
prog = ShaderProgram.new_program()
vert, frag = self.get_objects('shader2')
lib = ShaderObject.fragment()
with open(frag_path('frag_lib')) as f:
lib.source = f.read()
self.assertTrue(lib.compile(), 'lib did not compile successfully')
prog.attach(vert, frag, lib)
self.assertEqual(GL_FALSE, prog.link_status, 'link status is not false')
self.assertTrue(prog.link(), 'link was not successful')
self.assertEqual(GL_TRUE, prog.link_status, 'link status is not true')
def test_fail_compile(self):
" Test fail compile and logs "
srcf = open(frag_path('shader_bad'), 'r')
src = srcf.read()
frag_obj = ShaderObject.fragment()
frag_obj.source = src
self.assertFalse(frag_obj.compile(), 'shader was compiled successfully')
self.assertFalse(frag_obj.compiled, 'compiled returned True')
self.assertNotEqual(0, frag_obj.log_length, 'Log length is 0')
logs = frag_obj.logs
self.assertIn('Undeclared identifier: x', logs, 'Error not found')
self.assertIn('Undeclared identifier: y', logs, 'Error not found')
self.assertIn('Syntax error: "}" parse error', logs, 'Error not found')
self.assertIn('3 compilation errors. No code generated', logs, 'Error not found')
srcf.close()