+test_expect_success 'bisect does not start with only one bad' '
+ git bisect reset &&
+ git bisect start &&
+ git bisect bad $HASH4 || return 1
+
+ if git bisect next
+ then
+ echo Oops, should have failed.
+ false
+ else
+ :
+ fi
+'
+
+test_expect_success 'bisect does not start with only one good' '
+ git bisect reset &&
+ git bisect start &&
+ git bisect good $HASH1 || return 1
+
+ if git bisect next
+ then
+ echo Oops, should have failed.
+ false
+ else
+ :
+ fi
+'
+
+test_expect_success 'bisect start with one bad and good' '
+ git bisect reset &&
+ git bisect start &&
+ git bisect good $HASH1 &&
+ git bisect bad $HASH4 &&
+ git bisect next
+'
+