Add Lenna to the test dir so the gr.py script becomes self-sufficient

kitty_tests/gr.py

@@ -3,7 +3,6 @@
 # License: GPL v3 Copyright: 2017, Kovid Goyal <kovid at kovidgoyal.net>
 
 import os
-import subprocess
 import sys
 import zlib
 from base64 import standard_b64encode
@@ -40,6 +39,15 @@ def display(data, width, height, x, y, z, ncols=0, nrows=0):
         cmd.clear()
 
 
+def display_png_file(path):
+    cmd = {'a': 'T', 't': 'f', 'f': '100'}
+    path = os.path.abspath(path)
+    if not isinstance(path, bytes):
+        path = path.encode(sys.getfilesystemencoding() or 'utf-8')
+    data = standard_b64encode(path)
+    write_gr_cmd(cmd, data)
+
+
 def main():
     clear_screen()
     display(b'\xdd\xdd\xdd\xff', 1, 1, 0, 0, -10, 40, 20)
@@ -48,14 +56,17 @@ def main():
     move_cursor(5, 8)
     print('kitty is \033[3m\033[32mawesome\033[m!')
     move_cursor(0, 21)
-    if os.path.exists('/t/Lenna.png'):
-        print('Lenna...')
-        subprocess.check_call('python3 kitty/icat.py /t/Lenna.png'.split())
+    print('Lenna...')
+    display_png_file('kitty_tests/Lenna.png')
     try:
-        raw_input()
-    except NameError:
-        input()
+        try:
+            raw_input()
+        except NameError:
+            input()
+    except (EOFError, KeyboardInterrupt):
+        pass
 
 
 if __name__ == '__main__':
+    os.chdir(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..'))
     main()