[PATCH 2/2] oeqa/selftest/devtool: cover update-recipe --initial-rev

[Babanpreet Singh <bbnpreetsingh@gmail.com>]

The --initial-rev option had no selftest coverage, which let the
regression fixed by the previous commit go unnoticed since 2023.
Extend test_devtool_update_recipe to run update-recipe twice more with
--initial-rev: once with the recorded initial revision, which must
produce the same result as not passing the option, and once with a
revision in the middle of the local commits, which must export only
the commits after it.

Without the fix in the previous commit, the first --initial-rev
invocation fails with "Unable to find initial revision - please
specify it with --initial-rev".

AI-Generated: Uses Claude (claude-fable-5)
Signed-off-by: Babanpreet Singh <bbnpreetsingh@gmail.com>
---
 meta/lib/oeqa/selftest/cases/devtool.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/meta/lib/oeqa/selftest/cases/devtool.py b/meta/lib/oeqa/selftest/cases/devtool.py
index b2cd13e9a5..1bad223278 100644
--- a/meta/lib/oeqa/selftest/cases/devtool.py
+++ b/meta/lib/oeqa/selftest/cases/devtool.py
@@ -1286,6 +1286,28 @@ class DevtoolUpdateTests(DevtoolBase):
         self._check_repo_status(os.path.dirname(recipefile), expected_status)
         result = runCmd(cleanup_cmd)
         self._check_repo_status(os.path.dirname(recipefile), [])
+        # Now try the same passing --initial-rev: the recorded initial
+        # revision must give the same result as not passing the option, and a
+        # later revision must export only the commits after it
+        result = runCmd('git rev-parse devtool-base', cwd=tempdir)
+        initial_rev = result.output.strip()
+        result = runCmd('devtool update-recipe --initial-rev %s %s' % (initial_rev, testrecipe))
+        result = runCmd('git add minicom', cwd=os.path.dirname(recipefile))
+        expected_status = [(' M', '.*/%s$' % os.path.basename(recipefile)),
+                           ('A ', '.*/0001-Change-the-README.patch$'),
+                           ('A ', '.*/0002-Add-a-new-file.patch$')]
+        self._check_repo_status(os.path.dirname(recipefile), expected_status)
+        result = runCmd(cleanup_cmd)
+        self._check_repo_status(os.path.dirname(recipefile), [])
+        result = runCmd('git rev-parse HEAD~1', cwd=tempdir)
+        midpoint_rev = result.output.strip()
+        result = runCmd('devtool update-recipe --initial-rev %s %s' % (midpoint_rev, testrecipe))
+        result = runCmd('git add minicom', cwd=os.path.dirname(recipefile))
+        expected_status = [(' M', '.*/%s$' % os.path.basename(recipefile)),
+                           ('A ', '.*/0001-Add-a-new-file.patch$')]
+        self._check_repo_status(os.path.dirname(recipefile), expected_status)
+        result = runCmd(cleanup_cmd)
+        self._check_repo_status(os.path.dirname(recipefile), [])
 
     def test_devtool_update_recipe_git(self):
         # Check preconditions
-- 
2.43.0