fix(pytest): do not fail if the default TEST_IMAGE cannot be found

Target in our pytest module expects the image specified in the TEST_IMAGE
environment variable (or its default value) to exist. No longer fail if
an image is not specified in the environment and if the default one could
not be found: this may be intented.

Signed-off-by: Cedric Hombourger <[email protected]>

Author: chombourger

mtda/pytest.py

@@ -43,12 +43,16 @@ def init():
         # Initialize boot media
         image = os.getenv("TEST_IMAGE", Consts.DEFAULT_IMAGE)
         if os.path.exists(image) is False:
-            return False
+            if image != Consts.DEFAULT_IMAGE:
+                return False
+            else:
+                image = ""
 
-        Storage.to_host()
-        Storage.write(image)
-        Storage.to_target()
-        Env.set("boot-from-usb", "1")
+        if image:
+            Storage.to_host()
+            Storage.write(image)
+            Storage.to_target()
+            Env.set("boot-from-usb", "1")
 
         return True