'
+test_expect_success 'bisect refuses to start if branch bisect exists' '
+ git bisect reset &&
+ git branch bisect &&
+ test_must_fail git bisect start &&
+ git branch -d bisect &&
+ git checkout -b bisect &&
+ test_must_fail git bisect start &&
+ git checkout master &&
+ git branch -d bisect
+'
+
+test_expect_success 'bisect refuses to start if branch new-bisect exists' '
+ git bisect reset &&
+ git branch new-bisect &&
+ test_must_fail git bisect start &&
+ git branch -d new-bisect
+'
+
+test_expect_success 'bisect errors out if bad and good are mistaken' '
+ git bisect reset &&
+ test_must_fail git bisect start $HASH2 $HASH4 2> rev_list_error &&
+ grep "mistake good and bad" rev_list_error &&
+ git bisect reset
+'
+
#
#
test_done