repos: add tests for common errors

This patch adds tests for common errors when working with patches.

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

tests/test_patch.py

@@ -23,7 +23,9 @@
 import os
 import stat
 import shutil
+import pytest
 from kas import kas
+from kas.repos import PatchApplyError, PatchFileNotFound, PatchMappingError
 
 
 def test_patch(changedir, tmpdir):
@@ -53,3 +55,23 @@ def test_patch_update(changedir, tmpdir):
     for f in ['kas/tests/test_patch/hello.sh', 'hello/hello.sh']:
         assert os.stat(f)[stat.ST_MODE] & stat.S_IXUSR
     os.chdir(cwd)
+
+
+def test_invalid_patch(changedir, tmpdir):
+    """
+        Test on common errors when applying patches
+    """
+    tdir = str(tmpdir / 'test_patch_invalid')
+    shutil.copytree('tests/test_patch', tdir)
+    cwd = os.getcwd()
+    os.chdir(tdir)
+
+    with pytest.raises(PatchFileNotFound):
+        kas.kas(['shell', 'test-invalid.yml', '-c', 'true'])
+
+    with pytest.raises(PatchMappingError):
+        kas.kas(['shell', 'test-invalid2.yml', '-c', 'true'])
+
+    with pytest.raises(PatchApplyError):
+        kas.kas(['shell', 'test-invalid3.yml', '-c', 'true'])
+    os.chdir(cwd)

tests/test_patch/test-invalid.yml

@@ -0,0 +1,13 @@
+header:
+  version: 8
+
+repos:
+  this:
+
+  kas:
+    url: https://github.com/siemens/kas.git
+    refspec: 907816a5c4094b59a36aec12226e71c461c05b77
+    patches:
+      plain:
+        repo: this
+        path: patches/kas/001-non-existent.patch

tests/test_patch/test-invalid2.yml

@@ -0,0 +1,11 @@
+header:
+  version: 8
+
+repos:
+  kas:
+    url: https://github.com/siemens/kas.git
+    refspec: 907816a5c4094b59a36aec12226e71c461c05b77
+    patches:
+      plain:
+        repo: non-existent
+        path: patches/kas/001.patch

tests/test_patch/test-invalid3.yml

@@ -0,0 +1,13 @@
+header:
+  version: 8
+
+repos:
+  this:
+
+  kas:
+    url: https://github.com/ilbers/isar.git
+    refspec: 47aaeedecd0ea6f754da36be1d10717b04eb8275
+    patches:
+      plain:
+        repo: this
+        path: patches/kas/001.patch