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c2883e62f5
You can have quite a many reflog entries, but you typically won't recall which branch you were on after switching branches for more than several times. Instead of reading the reflog twice, this reads the branch switching event and keeps as many entries as the user asked from the latest such entries, which is the minimum required to be able to switch back to the branch we were recently on. [jc: improvements from Dscho squashed in] Signed-off-by: Junio C Hamano <gitster@pobox.com>
95 lines
2 KiB
Bash
Executable file
95 lines
2 KiB
Bash
Executable file
#!/bin/sh
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test_description='checkout can switch to last branch'
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. ./test-lib.sh
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test_expect_success 'setup' '
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echo hello >world &&
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git add world &&
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git commit -m initial &&
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git branch other &&
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echo "hello again" >>world &&
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git add world &&
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git commit -m second
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'
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test_expect_success '"checkout -" does not work initially' '
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test_must_fail git checkout -
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'
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test_expect_success 'first branch switch' '
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git checkout other
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'
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test_expect_success '"checkout -" switches back' '
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git checkout - &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/master"
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'
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test_expect_success '"checkout -" switches forth' '
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git checkout - &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/other"
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'
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test_expect_success 'detach HEAD' '
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git checkout $(git rev-parse HEAD)
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'
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test_expect_success '"checkout -" attaches again' '
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git checkout - &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/other"
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'
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test_expect_success '"checkout -" detaches again' '
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git checkout - &&
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test "z$(git rev-parse HEAD)" = "z$(git rev-parse other)" &&
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test_must_fail git symbolic-ref HEAD
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'
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test_expect_success 'more switches' '
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for i in 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
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do
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git checkout -b branch$i
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done
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'
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more_switches () {
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for i in 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
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do
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git checkout branch$i
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done
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}
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test_expect_success 'switch to the last' '
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more_switches &&
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git checkout @{-1} &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch2"
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'
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test_expect_success 'switch to second from the last' '
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more_switches &&
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git checkout @{-2} &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch3"
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'
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test_expect_success 'switch to third from the last' '
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more_switches &&
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git checkout @{-3} &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch4"
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'
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test_expect_success 'switch to fourth from the last' '
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more_switches &&
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git checkout @{-4} &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch5"
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'
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test_expect_success 'switch to twelfth from the last' '
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more_switches &&
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git checkout @{-12} &&
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test "z$(git symbolic-ref HEAD)" = "zrefs/heads/branch13"
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'
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test_done
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