add test to check order of layers in bblayers

Add a test to check the correct ordering of layers added to BBLAYERS
which come from multiple repositories.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

tests/test_layers.py

@@ -66,3 +66,14 @@ def test_layers_strip_dot(dokas):
         lines = f.readlines()
         assert any(f'{LAYERBASE}/kas3 ' in x for x in lines)
         assert any(f'{LAYERBASE}/kas3/meta-bar' in x for x in lines)
+
+
+def test_layers_order(dokas):
+    with open('build/conf/bblayers.conf', 'r') as f:
+        layers = [x.strip(' \\"\n').replace(LAYERBASE, '')
+                  for x in f.readlines() if x.lstrip().startswith(LAYERBASE)]
+        # layers of a repo are sorted alphabetically
+        assert layers[1] == '/kas1/meta-bar'
+        assert layers[2] == '/kas1/meta-foo'
+        # repos are sorted alphabetically (aa-kas from kas4 is last)
+        assert layers[-1] == '/aa-kas/meta'

tests/test_layers/test.yml

@@ -27,3 +27,11 @@ repos:
     layers:
       .:
       meta-bar:
+
+  kas4:
+    url: https://github.com/siemens/kas.git
+    path: aa-kas
+    name: zz-last
+    branch: master
+    layers:
+      meta: