Helped-by: Johannes Sixt <j6t@xxxxxxxx>
---
t/lib-rebase.sh | 15 ++++++++
t/t3420-rebase-topology-linear.sh | 78 +++++++++++++++++++++++++++++++++++++++
2 files changed, 93 insertions(+)
create mode 100755 t/t3420-rebase-topology-linear.sh
diff --git a/t/lib-rebase.sh b/t/lib-rebase.sh
index 6ccf797..62b3887 100644
--- a/t/lib-rebase.sh
+++ b/t/lib-rebase.sh
@@ -65,3 +65,18 @@ EOF
test_set_editor "$(pwd)/fake-editor.sh"
chmod a+x fake-editor.sh
}
+
+# checks that the revisions in "$2" represent a linear range with the
+# subjects in "$1"
+test_linear_range () {
+ ! { git log --format=%p "$2" | sane_grep " " ;} &&
+ expected=$1
+ set -- $(git log --reverse --format=%s "$2")
+ test "$expected" = "$*"
+}
+
+reset_rebase () {
+ git rebase --abort # may fail; ignore exit code
+ git reset --hard &&
+ git clean -f
+}
diff --git a/t/t3420-rebase-topology-linear.sh b/t/t3420-rebase-topology-linear.sh
new file mode 100755
index 0000000..c4b32db
--- /dev/null
+++ b/t/t3420-rebase-topology-linear.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+test_description='basic rebase topology tests'
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-rebase.sh
+
+# a---b---c
+# \
+# d---e
+test_expect_success 'setup' '
+ test_commit a &&
+ test_commit b &&
+ test_commit c &&
+ git checkout b &&
+ test_commit d &&
+ test_commit e
+'
+
+test_run_rebase () {
+ result=$1
+ shift
+ test_expect_$result "simple rebase $*" "
+ reset_rebase &&
+ git rebase $* c e &&
+ test_cmp_rev c HEAD~2 &&
+ test_linear_range 'd e' c..
+ "
+}
+test_run_rebase success ''
+test_run_rebase success -m
+test_run_rebase success -i
+test_run_rebase success -p
+
+test_run_rebase () {
+ result=$1
+ shift
+ test_expect_$result "rebase $* is no-op if upstream is an ancestor" "
+ reset_rebase &&
+ git rebase $* b e &&
+ test_cmp_rev e HEAD
+ "
+}
+test_run_rebase success ''
+test_run_rebase success -m
+test_run_rebase success -i
+test_run_rebase success -p
+
+test_run_rebase () {
+ result=$1
+ shift
+ test_expect_$result "rebase $* -f rewrites even if upstream is an ancestor" "
+ reset_rebase &&
+ git rebase $* -f b e &&
+ ! test_cmp_rev e HEAD &&
+ test_cmp_rev b HEAD~2 &&
+ test_linear_range 'd e' b..
+ "
+}
+test_run_rebase success ''
+test_run_rebase success -m
+test_run_rebase success -i
+test_run_rebase failure -p
+
+test_run_rebase () {
+ result=$1
+ shift
+ test_expect_$result "rebase $* fast-forwards if an ancestor of upstream" "
+ reset_rebase &&
+ git rebase $* e b &&
+ test_cmp_rev e HEAD
+ "
+}
+test_run_rebase success ''
+test_run_rebase success -m
+test_run_rebase success -i
+test_run_rebase success -p
+
+test_done
--
1.8.2.674.gd17d3d2
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