don't ever allow SHA1 collisions to exist by fetching a pack

diff --git a/t/t1004-read-tree-m-u-wf.sh b/t/t1004-read-tree-m-u-wf.sh
index 018fbea450b3481bea2586769de7418dea929e29..c11420a8b6ce9104f1c2ca3b4b2a23aef4f265ff 100755 (executable)
--- a/t/t1004-read-tree-m-u-wf.sh
+++ b/t/t1004-read-tree-m-u-wf.sh
@@ -8,23 +8,27 @@ test_description='read-tree -m -u checks working tree files'
 
 test_expect_success 'two-way setup' '
 
+       mkdir subdir &&
        echo >file1 file one &&
        echo >file2 file two &&
-       git update-index --add file1 file2 &&
+       echo >subdir/file1 file one in subdirectory &&
+       echo >subdir/file2 file two in subdirectory &&
+       git update-index --add file1 file2 subdir/file1 subdir/file2 &&
        git commit -m initial &&
 
        git branch side &&
        git tag -f branch-point &&
 
        echo file2 is not tracked on the master anymore &&
-       rm -f file2 &&
-       git update-index --remove file2 &&
-       git commit -a -m "master removes file2"
+       rm -f file2 subdir/file2 &&
+       git update-index --remove file2 subdir/file2 &&
+       git commit -a -m "master removes file2 and subdir/file2"
 '
 
 test_expect_success 'two-way not clobbering' '
 
        echo >file2 master creates untracked file2 &&
+       echo >subdir/file2 master creates untracked subdir/file2 &&
        if err=`git read-tree -m -u master side 2>&1`
        then
                echo should have complained
@@ -34,20 +38,82 @@ test_expect_success 'two-way not clobbering' '
        fi
 '
 
+echo file2 >.gitignore
+
+test_expect_success 'two-way with incorrect --exclude-per-directory (1)' '
+
+       if err=`git read-tree -m --exclude-per-directory=.gitignore master side 2>&1`
+       then
+               echo should have complained
+               false
+       else
+               echo "happy to see $err"
+       fi
+'
+
+test_expect_success 'two-way with incorrect --exclude-per-directory (2)' '
+
+       if err=`git read-tree -m -u --exclude-per-directory=foo --exclude-per-directory=.gitignore master side 2>&1`
+       then
+               echo should have complained
+               false
+       else
+               echo "happy to see $err"
+       fi
+'
+
+test_expect_success 'two-way clobbering a ignored file' '
+
+       git read-tree -m -u --exclude-per-directory=.gitignore master side
+'
+
+rm -f .gitignore
+
 # three-tree test
 
-test_expect_success 'three-way not complaining' '
+test_expect_success 'three-way not complaining on an untracked path in both' '
 
-       rm -f file2 &&
+       rm -f file2 subdir/file2 &&
        git checkout side &&
        echo >file3 file three &&
-       git update-index --add file3 &&
-       git commit -a -m "side adds file3" &&
+       echo >subdir/file3 file three &&
+       git update-index --add file3 subdir/file3 &&
+       git commit -a -m "side adds file3 and removes file2" &&
 
        git checkout master &&
        echo >file2 file two is untracked on the master side &&
+       echo >subdir/file2 file two is untracked on the master side &&
 
        git-read-tree -m -u branch-point master side
 '
 
+test_expect_success 'three-way not clobbering a working tree file' '
+
+       git reset --hard &&
+       rm -f file2 subdir/file2 file3 subdir/file3 &&
+       git checkout master &&
+       echo >file3 file three created in master, untracked &&
+       echo >subdir/file3 file three created in master, untracked &&
+       if err=`git read-tree -m -u branch-point master side 2>&1`
+       then
+               echo should have complained
+               false
+       else
+               echo "happy to see $err"
+       fi
+'
+
+echo >.gitignore file3
+
+test_expect_success 'three-way not complaining on an untracked file' '
+
+       git reset --hard &&
+       rm -f file2 subdir/file2 file3 subdir/file3 &&
+       git checkout master &&
+       echo >file3 file three created in master, untracked &&
+       echo >subdir/file3 file three created in master, untracked &&
+
+       git read-tree -m -u --exclude-per-directory=.gitignore branch-point master side
+'
+
 test_done