#!/bin/sh

test_description='checkout and pathspecs/refspecs ambiguities'

. ./test-lib.sh

test_expect_success 'setup' '
        echo hello >world &&
        echo hello >all &&
        git add all world &&
        git commit -m initial &&
        git branch world
'

test_expect_success 'reference must be a tree' '
        test_must_fail git checkout $(git hash-object ./all) --
'

test_expect_success 'branch switching' '
        test "refs/heads/master" = "$(git symbolic-ref HEAD)" &&
        git checkout world -- &&
        test "refs/heads/world" = "$(git symbolic-ref HEAD)"
'

test_expect_success 'checkout world from the index' '
        echo bye > world &&
        git checkout -- world &&
        git diff --exit-code --quiet
'

test_expect_success 'non ambiguous call' '
        git checkout all
'

test_expect_success 'allow the most common case' '
        git checkout world &&
        test "refs/heads/world" = "$(git symbolic-ref HEAD)"
'

test_expect_success 'check ambiguity' '
        test_must_fail git checkout world all
'

test_expect_success 'check ambiguity in subdir' '
        mkdir sub &&
        # not ambiguous because sub/world does not exist
        git -C sub checkout world ../all &&
        echo hello >sub/world &&
        # ambiguous because sub/world does exist
        test_must_fail git -C sub checkout world ../all
'

test_expect_success 'disambiguate checking out from a tree-ish' '
        echo bye > world &&
        git checkout world -- world &&
        git diff --exit-code --quiet
'

test_expect_success 'accurate error message with more than one ref' '
        test_must_fail git checkout HEAD master -- 2>actual &&
        test_i18ngrep 2 actual &&
        test_i18ngrep "one reference expected, 2 given" actual
'

test_done