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from pathlib import Path
import moderngl
from headless import HeadlessTestCase
from moderngl_window.context.headless import Keys
from moderngl_window import resources
from moderngl_window.meta import ProgramDescription
from moderngl_window import geometry
resources.register_dir((Path(__file__).parent / 'fixtures' / 'resources').resolve())
class HeadlessWindowTestCase(HeadlessTestCase):
"""Basic property and method testing"""
window_size = (16, 16)
aspect_ratio = 1.0
def test_properties(self):
self.assertEqual(self.window.keys, Keys)
self.assertEqual(self.window.title, 'ModernGL Window')
self.assertIsInstance(self.window.ctx, moderngl.Context)
self.assertIsInstance(self.window.fbo, moderngl.Framebuffer)
self.assertEqual(self.window.gl_version, (4, 1))
self.assertEqual(self.window.width, self.window_size[0])
self.assertEqual(self.window.height, self.window_size[1])
self.assertEqual(self.window.size, self.window_size)
self.assertEqual(self.window.buffer_size, self.window_size)
self.assertEqual(self.window.viewport, (0, 0, self.window_size[0], self.window_size[1]))
self.assertIsInstance(self.window.frames, int)
self.assertEqual(self.window.resizable, False)
self.assertEqual(self.window.fullscreen, False)
self.assertEqual(self.window.config, None)
self.assertEqual(self.window.vsync, False)
self.assertEqual(self.window.aspect_ratio, 1.0)
self.assertEqual(self.window.samples, 0)
self.assertEqual(self.window.cursor, False)
self.assertIsNotNone(self.window.modifiers)
self.assertFalse(self.window.is_closing)
def test_swap_buffers(self):
"""Ensure frame counter increases"""
frame = self.window.frames
self.window.swap_buffers()
self.assertEqual(self.window.frames, frame + 1)
def test_functions(self):
"""Ensure the basic functions do not cause crashes"""
self.window.swap_buffers()
self.window.clear()
self.window.render(0, 0)
self.window.print_context_info()
self.assertFalse(self.window.is_key_pressed(self.window.keys.ESCAPE))
def test_resize(self):
"""Resize should do nothing"""
self.window.resize(16, 16)
def test_viewport(self):
"""Set default viewport"""
self.window.set_default_viewport()
self.assertEqual(self.window.viewport, (0, 0, self.window_size[0], self.window_size[1]))
def test_render(self):
"""Render something simple to the framebuffer"""
self.window.use()
self.window.clear()
prog = resources.programs.load(ProgramDescription(path="programs/white.glsl"))
quad = geometry.quad_fs()
quad.render(prog)
# Ensure all fragments (rgba) values are white
data = self.window.fbo.read(components=4)
self.assertEqual(data, b'\xff' * (self.window_size[0] * self.window_size[1] * 4))
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