Turn the OSTree preconditions into a list

If a test case requires multiple repositories it can now use a list of
objects as the OSTree preconditions to check them all out.

Signed-off-by: Baghmar Tarun <tarun.baghmar@in.bosch.com>

atc_renderer/renderer.py

@@ -187,6 +187,8 @@ def get_template_values(testcase_data):
     if ostree_preconditions:
         if isinstance(ostree_preconditions, str):
             ostree_preconditions = { 'reponame': ostree_preconditions, 'branch': 'master' }
+        if type(ostree_preconditions) is dict:
+            ostree_preconditions = [ostree_preconditions]
         template_values.update({ 'ostree_preconditions' : ostree_preconditions })
 
     packages_list = metadata.get('macro_install_packages_preconditions')

atc_renderer/templates/macros.html

@@ -9,6 +9,7 @@
 {% endmacro %}
 
 {% macro ostree_preconditions(precondition) %}
+{% for reponame, branch in precondition %}
   <li class="mb-sm-2">From a PC, download and unpack the test data tarball from the gitlab test repository:</li>
   <p><kbd>$ wget https://gitlab.apertis.org/tests/{{ precondition.reponame }}/-/archive/{{ precondition.branch }}/{{ precondition.reponame }}.tar.gz</kbd></p>
   <p><kbd>$ tar -xvf {{ precondition.reponame }}.tar.gz</kbd></p>
@@ -20,6 +21,7 @@
   <li class="mb-sm-2">After log into the DUT, enter the test directory</li>
   <p><kbd>$ cd {{ precondition.reponame }}-*</kbd></p>
   <li class="mb-sm-2">Note that the tarball may change depending on the release/branch being tested, please make sure to download the correct tarball for the release in question.</li>
+{% endfor %}
 {% endmacro %}
 
 {% macro install_packages(packages_list) %}