Signed-off-by: Till Riedel <[email protected]>

Signed-off-by: Till Riedel <[email protected]>

Signed-off-by: Nicolas De Loof <[email protected]>

Signed-off-by: Renlong Tu <[email protected]>

Signed-off-by: Christopher Crone <[email protected]>

The ImageCollectionTest.test_pull_multiple test performs a `docker pull` without
a `:tag` specified) to pull all tags of the given repository (image).

After pulling the image, the image(s) pulled are checked to verify if the list
of images contains the `:latest` tag.

However, the test assumes that all tags of the image are tags for the same
version of the image (same digest), and thus a *single* image is returned, which
is not always the case.

Currently, the `hello-world:latest` and `hello-world:linux` tags point to a
different digest, therefore the `client.images.pull()` returns multiple images:
one image for digest, making the test fail:

    =================================== FAILURES ===================================
    ____________________ ImageCollectionTest.test_pull_multiple ____________________
    tests/integration/models_images_test.py:90: in test_pull_multiple
        assert len(images) == 1
    E   AssertionError: assert 2 == 1
    E    +  where 2 = len([<Image: 'hello-world:linux'>, <Image: 'hello-world:latest'>])

This patch updates the test to not assume a single image is returned, and instead
loop through the list of images and check if any of the images contains the
`:latest` tag.

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Signed-off-by: Anca Iordache <[email protected]>

Signed-off-by: Ulysses Souza <[email protected]>