Framework for testing loading of images

kitty_tests/graphics.py

@@ -5,6 +5,9 @@
 import os
 
 from . import BaseTest
+from base64 import standard_b64encode
+
+from kitty.fast_data_types import parse_bytes
 
 
 def img_path(name):
@@ -12,10 +15,47 @@ def img_path(name):
     return os.path.join(base, name)
 
 
+def send_command(screen, cmd, payload=b''):
+    cmd = '\033_G' + cmd
+    if payload:
+        if isinstance(payload, str):
+            payload = payload.encode('utf-8')
+        payload = standard_b64encode(payload).decode('ascii')
+        cmd += ';' + payload
+    cmd += '\033\\'
+    c = screen.callbacks
+    c.clear()
+    parse_bytes(screen, cmd.encode('ascii'))
+    return c.wtcbuf
+
+
 class TestGraphics(BaseTest):
 
     def test_load_images(self):
         s = self.create_screen()
-        # c = s.callbacks
         g = s.grman
-        print(g)
+
+        def l(payload, **kw):
+            kw.setdefault('i', 1)
+            cmd = ','.join('%s=%s' % (k, v) for k, v in kw.items())
+            res = send_command(s, cmd, payload)
+            if not res:
+                return
+            return res.decode('ascii').partition(';')[2].partition(':')[0].partition('\033')[0]
+
+        def sl(payload, **kw):
+            if isinstance(payload, str):
+                payload = payload.encode('utf-8')
+            cid = kw.setdefault('i', 1)
+            self.ae('OK', l(payload, **kw))
+            img = g.image_for_client_id(cid)
+            self.ae(img['client_id'], cid)
+            self.ae(img['data'], payload)
+            if 's' in kw:
+                self.ae((kw['s'], kw['v']), (img['width'], img['height']))
+            return img
+
+        for f in 32, 24:
+            p = 'abc' + ('d' if f == 32 else '')
+            img = sl(p, s=1, v=1, f=f)
+            self.ae(bool(img['is_4byte_aligned']), f == 32)