Path to images with spaces breaks the compare function

[DiegoSanchezE]

Describe the bug
If the images path contains spaces, the compare function fails.

To Reproduce

1. Create your robot project at a path that contains spaces, such as G:\My Drive\Web-Automation.
2. Create a test case that captures an image and then compares it against the baseline sample.

Expected behavior
The error I got was: ValueError: could not convert string to float: b'nabl', but the real issue is that compare is looking for the image in G:\\My which is obviously not equal to G:\My Drive\Web-Automation.

In my particular case, this is the whole error in the robot report:
b"compare: unable to open image 'G:\\My': No such file or directory @ error/blob.c/OpenBlob/3485.\r\ncompare: no decode delegate for this image format `' @ error/constitute.c/ReadImage/556.\r\ncompare: unable to open image 'Drive\\Web-Automation\\visual_images\\actual\\Hillshade\\img1.png': No such file or directory @ error/blob.c/OpenBlob/3485.\r\ncompare: unable to open image 'Drive\\Web-Automation\\visual_images\\actual\\Hillshade\\img1.png': No such file or directory @ error/blob.c/OpenBlob/3485.\r\ncompare: no decode delegate for this image format `' @ error/constitute.c/ReadImage/556.\r\ncompare: unable to open image 'Drive\\Web-Automation\\visual_images\\baseline\\Hillshade\\img1.png': No such file or directory @ error/blob.c/OpenBlob/3485.\r\ncompare: unable to open image 'Drive\\Web-Automation\\visual_images\\baseline\\Hillshade\\img1.png': No such file or directory @ error/blob.c/OpenBlob/3485.\r\ncompare: no decode delegate for this image format `' @ error/constitute.c/ReadImage/556.\r\n"

Notice how it's looking for the G:\\My and Drive\\foo\\bar directories.

Screenshots

Desktop (please complete the following information):

• OS: Windows 10
• Browser: Chrome
• Version: 72.0.3626.119 (Official Build) (64-bit)

Additional context
Imagmagick is installed and in the path
My code works in a different path (no spaces).

The obvious workaround is to not put the images in a path with spaces 😆 , but that's kinda silly.
I'll move my project to another folder, no problem. Just wanted to point this out.
Cheers!

[jessezach]

@DiegoSanchezE Will take a look.

[jessezach]

@DiegoSanchezE When running the tests do you provide the absolute path to results? Or maybe Imagemagick expands the path.

[jessezach]

@DiegoSanchezE I have raised a potential fix. #26
However I did not get the time to test this out. Can you please run you test using this branch and check if it does fix your issue?

[DiegoSanchezE]

@jz-jess Definitely. I'll do that in a bit. Thanks!

[DiegoSanchezE]

It's working:

The comparison happened (and one of the failed). This implies that the library was able to find the images in the same, space-containing path that used to break the compare function.

[jessezach]

Fix released in version 0.64. Closing this