tests: Check patches can still be applied after switching refspec

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

tests/test_patch.py

@@ -39,3 +39,21 @@ def test_patch(tmpdir):
         assert os.stat(f)[stat.ST_MODE] & stat.S_IXUSR
     kas.kas(['shell', 'test.yml', '-c', 'true'])
     os.chdir(prev_dir)
+
+def test_patch_update(tmpdir):
+    """
+        Test that patches are applied correctly after switching refspec from
+        a branch to a commit hash and vice-versa with both git and mercurial
+        repositories.
+    """
+    tdir = str(tmpdir.mkdir('test_patch_update'))
+    shutil.rmtree(tdir, ignore_errors=True)
+    print(os.getcwd())
+    shutil.copytree('tests/test_patch', tdir)
+    prev_dir = os.path.realpath(os.getcwd())
+    os.chdir(tdir)
+    kas.kas(['shell', 'test.yml', '-c', 'true'])
+    kas.kas(['shell', 'test2.yml', '-c', 'true'])
+    for f in ['kas/tests/test_patch/hello.sh', 'hello/hello.sh']:
+        assert os.stat(f)[stat.ST_MODE] & stat.S_IXUSR
+    os.chdir(prev_dir)

tests/test_patch/test2.yml

@@ -0,0 +1,45 @@
+header:
+  version: 8
+
+repos:
+  this:
+
+  kas:
+    url: https://github.com/siemens/kas.git
+    refspec: master
+    patches:
+      plain:
+        repo: this
+        path: patches/kas-branch/003.patch
+
+  kas-branch:
+    url: https://github.com/siemens/kas.git
+    refspec: 907816a5c4094b59a36aec12226e71c461c05b77
+    patches:
+      plain:
+        repo: this
+        path: patches/kas/001.patch
+      quilt:
+        repo: this
+        path: patches/kas/quilt/
+
+  hello:
+    url: https://www.mercurial-scm.org/repo/hello/
+    refspec: default
+    type: hg
+    patches:
+      plain:
+        repo: this
+        path: patches/hello/001.patch
+      quilt:
+        repo: this
+        path: patches/hello/quilt/
+
+  hello-branch:
+    url: https://www.mercurial-scm.org/repo/hello/
+    refspec: 0a04b987be5a
+    type: hg
+    patches:
+      plain:
+        repo: this
+        path: patches/hello-branch/003.patch