Add tests for "git diff --check" with core.whitespace options

diff --git a/t/t7201-co.sh b/t/t7201-co.sh
index 5fa6a45577894e05446351fc5076a27accb1fa9f..73d8a00e2cca907e562c50c70a10c02e3c0e02ca 100755 (executable)
--- a/t/t7201-co.sh
+++ b/t/t7201-co.sh
@@ -20,6 +20,8 @@ Test switching across them.
 
 . ./test-lib.sh
 
+test_tick
+
 fill () {
        for i
        do
@@ -30,9 +32,10 @@ fill () {
 
 test_expect_success setup '
 
+       fill x y z > same &&
        fill 1 2 3 4 5 6 7 8 >one &&
        fill a b c d e >two &&
-       git add one two &&
+       git add same one two &&
        git commit -m "Initial A one, A two" &&
 
        git checkout -b renamer &&
@@ -74,16 +77,44 @@ test_expect_success "checkout with dirty tree without -m" '
 
 '
 
+test_expect_success "checkout with unrelated dirty tree without -m" '
+
+       git checkout -f master &&
+       fill 0 1 2 3 4 5 6 7 8 >same &&
+       cp same kept
+       git checkout side >messages &&
+       git diff same kept
+       (cat > messages.expect <<EOF
+M      same
+EOF
+) &&
+       touch messages.expect &&
+       git diff messages.expect messages
+'
+
 test_expect_success "checkout -m with dirty tree" '
 
        git checkout -f master &&
-       git clean &&
+       git clean -f &&
 
        fill 0 1 2 3 4 5 6 7 8 >one &&
-       git checkout -m side &&
+       git checkout -m side > messages &&
 
        test "$(git symbolic-ref HEAD)" = "refs/heads/side" &&
 
+       (cat >expect.messages <<EOF
+Merging side with local
+Merging:
+ab76817 Side M one, D two, A three
+virtual local
+found 1 common ancestor(s):
+7329388 Initial A one, A two
+Auto-merged one
+M      one
+EOF
+) &&
+       git diff expect.messages messages &&
+
        fill "M one" "A three" "D       two" >expect.master &&
        git diff --name-status master >current.master &&
        diff expect.master current.master &&
@@ -99,7 +130,7 @@ test_expect_success "checkout -m with dirty tree" '
 
 test_expect_success "checkout -m with dirty tree, renamed" '
 
-       git checkout -f master && git clean &&
+       git checkout -f master && git clean -f &&
 
        fill 1 2 3 4 5 7 8 >one &&
        if git checkout renamer
@@ -121,7 +152,7 @@ test_expect_success "checkout -m with dirty tree, renamed" '
 
 test_expect_success 'checkout -m with merge conflict' '
 
-       git checkout -f master && git clean &&
+       git checkout -f master && git clean -f &&
 
        fill 1 T 3 4 5 6 S 8 >one &&
        if git checkout renamer
@@ -144,8 +175,17 @@ test_expect_success 'checkout -m with merge conflict' '
 
 test_expect_success 'checkout to detach HEAD' '
 
-       git checkout -f renamer && git clean &&
-       git checkout renamer^ &&
+       git checkout -f renamer && git clean -f &&
+       git checkout renamer^ 2>messages &&
+       (cat >messages.expect <<EOF
+Note: moving to "renamer^" which isn'"'"'t a local branch
+If you want to create a new branch from this checkout, you may do so
+(now or later) by using -b with the checkout command again. Example:
+  git checkout -b <new_branch_name>
+HEAD is now at 7329388... Initial A one, A two
+EOF
+) &&
+       git diff messages.expect messages &&
        H=$(git rev-parse --verify HEAD) &&
        M=$(git show-ref -s --verify refs/heads/master) &&
        test "z$H" = "z$M" &&
@@ -160,7 +200,7 @@ test_expect_success 'checkout to detach HEAD' '
 
 test_expect_success 'checkout to detach HEAD with branchname^' '
 
-       git checkout -f master && git clean &&
+       git checkout -f master && git clean -f &&
        git checkout renamer^ &&
        H=$(git rev-parse --verify HEAD) &&
        M=$(git show-ref -s --verify refs/heads/master) &&
@@ -176,7 +216,7 @@ test_expect_success 'checkout to detach HEAD with branchname^' '
 
 test_expect_success 'checkout to detach HEAD with HEAD^0' '
 
-       git checkout -f master && git clean &&
+       git checkout -f master && git clean -f &&
        git checkout HEAD^0 &&
        H=$(git rev-parse --verify HEAD) &&
        M=$(git show-ref -s --verify refs/heads/master) &&
@@ -190,4 +230,44 @@ test_expect_success 'checkout to detach HEAD with HEAD^0' '
        fi
 '
 
+test_expect_success 'checkout with ambiguous tag/branch names' '
+
+       git tag both side &&
+       git branch both master &&
+       git reset --hard &&
+       git checkout master &&
+
+       git checkout both &&
+       H=$(git rev-parse --verify HEAD) &&
+       M=$(git show-ref -s --verify refs/heads/master) &&
+       test "z$H" = "z$M" &&
+       name=$(git symbolic-ref HEAD 2>/dev/null) &&
+       test "z$name" = zrefs/heads/both
+
+'
+
+test_expect_success 'checkout with ambiguous tag/branch names' '
+
+       git reset --hard &&
+       git checkout master &&
+
+       git tag frotz side &&
+       git branch frotz master &&
+       git reset --hard &&
+       git checkout master &&
+
+       git checkout tags/frotz &&
+       H=$(git rev-parse --verify HEAD) &&
+       S=$(git show-ref -s --verify refs/heads/side) &&
+       test "z$H" = "z$S" &&
+       if name=$(git symbolic-ref HEAD 2>/dev/null)
+       then
+               echo "Bad -- should have detached"
+               false
+       else
+               : happy
+       fi
+
+'
+
 test_done