git/t/t2027-checkout-track.sh
René Scharfe bb2198fb91 checkout: improve error messages for -b with extra argument
When we try to create a branch "foo" based on "origin/master" and give
git commit -b an extra unsupported argument "bar", it confusingly
reports:

   $ git checkout -b foo origin/master bar
   fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it

   $ git checkout --track -b foo origin/master bar
   fatal: 'bar' is not a commit and a branch 'foo' cannot be created from it

That's wrong, because it very well understands that "origin/master" is
supposed to be the start point for the new branch and not "bar".  Check
if we got a commit and show more fitting messages in that case instead:

   $ git checkout -b foo origin/master bar
   fatal: Cannot update paths and switch to branch 'foo' at the same time.

   $ git checkout --track -b foo origin/master bar
   fatal: '--track' cannot be used with updating paths

Original-patch-by: Jeff King <peff@peff.net>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-24 16:21:30 -07:00

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#!/bin/sh
test_description='tests for git branch --track'
. ./test-lib.sh
test_expect_success 'setup' '
test_commit one &&
test_commit two
'
test_expect_success 'checkout --track -b creates a new tracking branch' '
git checkout --track -b branch1 master &&
test $(git rev-parse --abbrev-ref HEAD) = branch1 &&
test $(git config --get branch.branch1.remote) = . &&
test $(git config --get branch.branch1.merge) = refs/heads/master
'
test_expect_success 'checkout --track -b rejects an extra path argument' '
test_must_fail git checkout --track -b branch2 master one.t 2>err &&
test_i18ngrep "cannot be used with updating paths" err
'
test_done