[PATCH 4/4] reset: add test cases for "--merge-dirty" option

@@ -3,7 +3,7 @@
 # Copyright (c) 2009 Christian Couder
 #
 
-test_description='Tests for "git reset --merge"'
+test_description='Tests for "git reset" with --merge and --merge-dirty'
 
 exec </dev/null
 

@@ -19,7 +19,7 @@ test_expect_success 'creating initial files' '
      git commit -m "Initial commit"
 '
 
-test_expect_success 'ok with changes in file not changed by reset' '
+test_expect_success '--merge: ok if changes in file not touched by reset' '
      echo "line 4" >> file1 &&
      echo "line 4" >> file2 &&
      test_tick &&

@@ -32,7 +32,21 @@ test_expect_success 'ok with changes in file not changed by reset' '
      grep 4 file2
 '
 
-test_expect_success 'discard changes added to index 1' '
+test_expect_success '--merge-dirty: ok if changes in file untouched by reset' '
+     git reset --hard HEAD^ &&
+     echo "line 4" >> file1 &&
+     echo "line 4" >> file2 &&
+     test_tick &&
+     git commit -m "add line 4" file1 &&
+     git reset --merge-dirty HEAD^ &&
+     ! grep 4 file1 &&
+     grep 4 file2 &&
+     git reset --merge-dirty HEAD@{1} &&
+     grep 4 file1 &&
+     grep 4 file2
+'
+
+test_expect_success '--merge: discard changes added to index 1' '
      echo "line 5" >> file1 &&
      git add file1 &&
      git reset --merge HEAD^ &&

@@ -47,7 +61,7 @@ test_expect_success 'discard changes added to index 1' '
      grep 4 file1
 '
 
-test_expect_success 'discard changes added to index 2' '
+test_expect_success '--merge: discard changes added to index 2' '
      echo "line 4" >> file2 &&
      git add file2 &&
      git reset --merge HEAD^ &&

@@ -57,7 +71,37 @@ test_expect_success 'discard changes added to index 2' '
      grep 4 file1
 '
 
-test_expect_success 'not ok with changes in file changed by reset' '
+test_expect_success '--merge-dirty: not ok with touched changes in index' '
+     echo "line 4" >> file2 &&
+     echo "line 5" >> file1 &&
+     git add file1 &&
+     test_must_fail git reset --merge-dirty HEAD^ &&
+     git reset --hard HEAD
+'
+
+test_expect_success '--merge-dirty: keep untouched changes' '
+     echo "line 4" >> file2 &&
+     git add file2 &&
+     git reset --merge-dirty HEAD^ &&
+     grep 4 file2 &&
+     git reset --merge HEAD@{1} &&
+     grep 4 file2 &&
+     grep 4 file1 &&
+     git reset --hard HEAD
+'
+
+test_expect_success '--merge: not ok with changes in file changed by reset' '
+     echo "line 6" >> file1 &&
+     test_tick &&
+     git commit -m "add line 6" file1 &&
+     sed -e "s/line 1/changed line 1/" <file1 >file3 &&
+     mv file3 file1 &&
+     test_must_fail git reset --merge HEAD^ 2>err.log &&
+     grep file1 err.log | grep "not uptodate"
+'
+
+test_expect_success '--merge-dirty: not ok with changes in file changed by reset' '
+     git reset --hard HEAD^ &&
      echo "line 6" >> file1 &&
      test_tick &&
      git commit -m "add line 6" file1 &&