Add a testcase for the safety of pull-policy='pull'.

This testcase demonstrates a long-standing problem with the handling
of conflicts on a rewinding branch, when "stg pull" calls git-pull.

Signed-off-by: Yann Dirson <ydirson@altern.org>

diff --git a/t/t2101-pull-policy-pull.sh b/t/t2101-pull-policy-pull.sh
new file mode 100755 (executable)
index 0000000..793491c
--- /dev/null
+++ b/t/t2101-pull-policy-pull.sh
@@ -0,0 +1,58 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Yann Dirson
+#
+
+test_description='Excercise pull-policy "fetch-rebase".'
+
+. ./test-lib.sh
+
+# don't need this repo, but better not drop it, see t1100
+#rm -rf .git
+
+# Need a repo to clone
+test_create_repo upstream
+
+test_expect_success \
+    'Setup upstream repo, clone it, and add patches to the clone' \
+    '
+    (cd upstream && stg init) &&
+    stg clone upstream clone &&
+    (cd clone &&
+     git repo-config branch.master.stgit.pull-policy pull &&
+     git repo-config --list &&
+     stg new c1 -m c1 &&
+     echo a > file && stg add file && stg refresh
+    )
+    '
+
+test_expect_success \
+    'Add non-rewinding commit upstream and pull it from clone' \
+    '
+    (cd upstream && stg new u1 -m u1 &&
+     echo a > file2 && stg add file2 && stg refresh) &&
+    (cd clone && stg pull) &&
+     test -e clone/file2
+    '
+
+# note: with pre-1.5 Git the clone is not automatically recorded
+# as rewinding, and thus heads/origin is not moved, but the stack
+# is still correctly rebased
+
+test_expect_failure \
+    'Rewind/rewrite upstream commit and pull it from clone, without --merged' \
+    '
+    (cd upstream && echo b >> file2 && stg refresh) &&
+    (cd clone && stg pull)
+    '
+
+test_expect_success \
+    '"Solve" the conflict (pretend there is none)' \
+    '(cd clone &&
+      git add file2 && EDITOR=cat git commit)'
+
+test_expect_success \
+    'Push the stack back' \
+    '(cd clone && stg push -a)'
+
+test_done

diff --git a/t/t2102-pull-policy-rebase.sh b/t/t2102-pull-policy-rebase.sh
new file mode 100755 (executable)
index 0000000..e1398a3
--- /dev/null
+++ b/t/t2102-pull-policy-rebase.sh
@@ -0,0 +1,72 @@
+#!/bin/sh
+#
+# Copyright (c) 2007 Yann Dirson
+#
+
+test_description='Excercise pull-policy "fetch-rebase".'
+
+. ./test-lib.sh
+
+# don't need this repo, but better not drop it, see t1100
+#rm -rf .git
+
+# Need a repo to clone
+test_create_repo upstream
+
+test_expect_success \
+    'Setup upstream repo, clone it, and add patches to the clone' \
+    '
+    (cd upstream && stg init) &&
+    stg clone upstream clone &&
+    (cd clone &&
+     git repo-config branch.master.stgit.pull-policy fetch-rebase &&
+     git repo-config --list &&
+     stg new c1 -m c1 &&
+     echo a > file && stg add file && stg refresh
+    )
+    '
+
+test_expect_success \
+    'Add non-rewinding commit upstream and pull it from clone' \
+    '
+    (cd upstream && stg new u1 -m u1 &&
+     echo a > file2 && stg add file2 && stg refresh) &&
+    (cd clone && stg pull) &&
+    test -e clone/file2
+    '
+
+# note: with pre-1.5 Git the clone is not automatically recorded
+# as rewinding, and thus heads/origin is not moved, but the stack
+# is still correctly rebased
+test_expect_success \
+    'Rewind/rewrite upstream commit and pull it from clone' \
+    '
+    (cd upstream && echo b >> file2 && stg refresh) &&
+    (cd clone && stg pull) &&
+    test `wc -l <clone/file2` = 2
+    '
+
+# this one ensures the guard against commits does not unduly trigger
+test_expect_success \
+    'Rewind/rewrite upstream commit and fetch it from clone before pulling' \
+    '
+    (cd upstream && echo c >> file2 && stg refresh) &&
+    (cd clone && git fetch && stg pull) &&
+    test `wc -l <clone/file2` = 3
+    '
+
+# this one exercises the guard against commits
+# (use a new file to avoid mistaking a conflict for a success)
+test_expect_success \
+    'New upstream commit and commit a patch in clone' \
+    '
+    (cd upstream && stg new u2 -m u2 &&
+     echo a > file3 && stg add file3 && stg refresh) &&
+    (cd clone && stg commit && stg new c2 -m c2 &&
+     echo a >> file && stg refresh)
+    '
+test_expect_failure \
+    'Try to  and commit a patch in clone' \
+    '(cd clone && stg pull)'
+
+test_done