3 test_description='checkout'
7 # Arguments: [!] <branch> <oid> [<checkout options>]
9 # Runs "git checkout" to switch to <branch>, testing that
11 # 1) we are on the specified branch, <branch>;
12 # 2) HEAD is <oid>; if <oid> is not specified, the old HEAD is used.
14 # If <checkout options> is not specified, "git checkout" is run with -b.
16 # If the first argument is `!`, "git checkout" is expected to fail when
26 exp_ref="refs/heads/$exp_branch" &&
28 # if <oid> is not specified, use HEAD.
29 exp_oid=${2:-$(git rev-parse --verify HEAD)} &&
31 # default options for git checkout: -b
39 if test -n "$should_fail"
41 test_must_fail git checkout $opts $exp_branch $exp_oid
43 git checkout $opts $exp_branch $exp_oid &&
44 echo "$exp_ref" >ref.expect &&
45 git rev-parse --symbolic-full-name HEAD >ref.actual &&
46 test_cmp ref.expect ref.actual &&
47 echo "$exp_oid" >oid.expect &&
48 git rev-parse --verify HEAD >oid.actual &&
49 test_cmp oid.expect oid.actual
53 test_dirty_unmergeable () {
54 test_expect_code 1 git diff --exit-code
57 test_dirty_unmergeable_discards_changes () {
61 setup_dirty_unmergeable () {
65 test_dirty_mergeable () {
66 test_expect_code 1 git diff --cached --exit-code
69 test_dirty_mergeable_discards_changes () {
70 git diff --cached --exit-code
73 setup_dirty_mergeable () {
78 test_expect_success 'setup' '
79 test_commit initial file1 &&
80 HEAD1=$(git rev-parse --verify HEAD) &&
82 test_commit change1 file1 &&
83 HEAD2=$(git rev-parse --verify HEAD) &&
88 test_expect_success 'checkout -b to a new branch, set to HEAD' '
90 git checkout branch1 &&
91 test_might_fail git branch -D branch2" &&
95 test_expect_success 'checkout -b to a merge base' '
97 git checkout branch1 &&
98 test_might_fail git branch -D branch2" &&
99 git checkout -b branch2 branch1...
102 test_expect_success 'checkout -b to a new branch, set to an explicit ref' '
104 git checkout branch1 &&
105 test_might_fail git branch -D branch2" &&
106 do_checkout branch2 $HEAD1
109 test_expect_success 'checkout -b to a new branch with unmergeable changes fails' '
110 setup_dirty_unmergeable &&
111 do_checkout ! branch2 $HEAD1 &&
112 test_dirty_unmergeable
115 test_expect_success 'checkout -f -b to a new branch with unmergeable changes discards changes' '
117 git checkout branch1 &&
118 test_might_fail git branch -D branch2" &&
120 # still dirty and on branch1
121 do_checkout branch2 $HEAD1 "-f -b" &&
122 test_dirty_unmergeable_discards_changes
125 test_expect_success 'checkout -b to a new branch preserves mergeable changes' '
128 git checkout branch1 &&
129 test_might_fail git branch -D branch2" &&
131 setup_dirty_mergeable &&
132 do_checkout branch2 $HEAD1 &&
136 test_expect_success 'checkout -f -b to a new branch with mergeable changes discards changes' '
137 test_when_finished git reset --hard HEAD &&
138 setup_dirty_mergeable &&
139 do_checkout branch2 $HEAD1 "-f -b" &&
140 test_dirty_mergeable_discards_changes
143 test_expect_success 'checkout -b to an existing branch fails' '
144 test_when_finished git reset --hard HEAD &&
145 do_checkout ! branch2 $HEAD2
148 test_expect_success 'checkout -b to @{-1} fails with the right branch name' '
149 git checkout branch1 &&
150 git checkout branch2 &&
151 echo >expect "fatal: A branch named '\''branch1'\'' already exists." &&
152 test_must_fail git checkout -b @{-1} 2>actual &&
153 test_i18ncmp expect actual
156 test_expect_success 'checkout -B to an existing branch resets branch to HEAD' '
157 git checkout branch1 &&
159 do_checkout branch2 "" -B
162 test_expect_success 'checkout -B to a merge base' '
163 git checkout branch1 &&
165 git checkout -B branch2 branch1...
168 test_expect_success 'checkout -B to an existing branch from detached HEAD resets branch to HEAD' '
169 head=$(git rev-parse --verify HEAD) &&
170 git checkout "$head" &&
172 do_checkout branch2 "" -B
175 test_expect_success 'checkout -B to an existing branch with an explicit ref resets branch to that ref' '
176 git checkout branch1 &&
178 do_checkout branch2 $HEAD1 -B
181 test_expect_success 'checkout -B to an existing branch with unmergeable changes fails' '
182 git checkout branch1 &&
184 setup_dirty_unmergeable &&
185 do_checkout ! branch2 $HEAD1 -B &&
186 test_dirty_unmergeable
189 test_expect_success 'checkout -f -B to an existing branch with unmergeable changes discards changes' '
190 # still dirty and on branch1
191 do_checkout branch2 $HEAD1 "-f -B" &&
192 test_dirty_unmergeable_discards_changes
195 test_expect_success 'checkout -B to an existing branch preserves mergeable changes' '
196 test_when_finished git reset --hard &&
197 git checkout branch1 &&
199 setup_dirty_mergeable &&
200 do_checkout branch2 $HEAD1 -B &&
204 test_expect_success 'checkout -f -B to an existing branch with mergeable changes discards changes' '
205 git checkout branch1 &&
207 setup_dirty_mergeable &&
208 do_checkout branch2 $HEAD1 "-f -B" &&
209 test_dirty_mergeable_discards_changes
212 test_expect_success 'checkout -b <describe>' '
213 git tag -f -m "First commit" initial initial &&
214 git checkout -f change1 &&
215 name=$(git describe) &&
216 git checkout -b $name &&
217 git diff --exit-code change1 &&
218 echo "refs/heads/$name" >expect &&
219 git symbolic-ref HEAD >actual &&
220 test_cmp expect actual
223 test_expect_success 'checkout -B to the current branch works' '
224 git checkout branch1 &&
225 git checkout -B branch1-scratch &&
227 setup_dirty_mergeable &&
228 git checkout -B branch1-scratch initial &&
232 test_expect_success 'checkout -b after clone --no-checkout does a checkout of HEAD' '
234 test_commit -C src a &&
235 rev="$(git -C src rev-parse HEAD)" &&
236 git clone --no-checkout src dest &&
237 git -C dest checkout "$rev" -b branch &&
238 test_path_is_file dest/a.t