expose a helper function peel_to_type().

diff --git a/t/t0030-stripspace.sh b/t/t0030-stripspace.sh
index fdc9fdce6fd334205d991d0a43161a8678c45962..818c8621f239dd7f61a2d79e9c65779dbbf9f6ef 100755 (executable)
--- a/t/t0030-stripspace.sh
+++ b/t/t0030-stripspace.sh
@@ -81,43 +81,64 @@ test_expect_success \
 
     printf "$ttt\n\n$ttt$ttt$ttt\n" > expect &&
     printf "$ttt\n\n\n\n\n$ttt$ttt$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n\n$ttt\n" > expect &&
+    printf "$ttt\n\t\n \n\n  \t\t\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt$ttt\n\n$ttt\n" > expect &&
+    printf "$ttt$ttt\n\t\n \n\n  \t\t\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt$ttt$ttt\n\n$ttt\n" > expect &&
+    printf "$ttt$ttt$ttt\n\t\n \n\n  \t\t\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n\n$ttt\n" > expect &&
+    printf "$ttt\n\t\n \n\n  \t\t\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n\n$ttt$ttt\n" > expect &&
+    printf "$ttt\n\t\n \n\n  \t\t\n$ttt$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n\n$ttt$ttt$ttt\n" > expect &&
+    printf "$ttt\n\t\n \n\n  \t\t\n$ttt$ttt$ttt\n" | git stripspace >actual &&
     git diff expect actual
 '
 
 test_expect_success \
-    'consecutive blank lines at the beginning should be removed' '
-    printf "" > expect &&
+    'only consecutive blank lines should be completely removed' '
+    > expect &&
+
     printf "\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "\n\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "$sss\n$sss\n$sss\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "$sss$sss\n$sss\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "\n$sss\n$sss$sss\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "$sss$sss$sss$sss\n\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "\n$sss$sss$sss$sss\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "" > expect &&
     printf "\n\n$sss$sss$sss$sss\n" | git stripspace >actual &&
-    git diff expect actual &&
+    git diff expect actual
+'
 
+test_expect_success \
+    'consecutive blank lines at the beginning should be removed' '
     printf "$ttt\n" > expect &&
     printf "\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
@@ -139,26 +160,22 @@ test_expect_success \
     git diff expect actual &&
 
     printf "$ttt\n" > expect &&
+
     printf "$sss\n$sss\n$sss\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "\n$sss\n$sss$sss\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$sss$sss\n$sss\n\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$sss$sss$sss\n\n\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "\n$sss$sss$sss\n\n$ttt\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "\n\n$sss$sss$sss\n$ttt\n" | git stripspace >actual &&
     git diff expect actual
 '
@@ -186,26 +203,22 @@ test_expect_success \
     git diff expect actual &&
 
     printf "$ttt\n" > expect &&
+
     printf "$ttt\n$sss\n$sss\n$sss\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$ttt\n\n$sss\n$sss$sss\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$ttt\n$sss$sss\n$sss\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$ttt\n$sss$sss$sss\n\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$ttt\n\n$sss$sss$sss\n\n" | git stripspace >actual &&
     git diff expect actual &&
 
-    printf "$ttt\n" > expect &&
     printf "$ttt\n\n\n$sss$sss$sss\n" | git stripspace >actual &&
     git diff expect actual
 '
@@ -224,20 +237,20 @@ test_expect_success \
     'text plus spaces without newline at end should end with newline' '
     test `printf "$ttt$sss" | git stripspace | wc -l` -gt 0 &&
     test `printf "$ttt$ttt$sss" | git stripspace | wc -l` -gt 0 &&
-    test `printf "$ttt$ttt$ttt$sss" | git stripspace | wc -l` -gt 0
+    test `printf "$ttt$ttt$ttt$sss" | git stripspace | wc -l` -gt 0 &&
     test `printf "$ttt$sss$sss" | git stripspace | wc -l` -gt 0 &&
     test `printf "$ttt$ttt$sss$sss" | git stripspace | wc -l` -gt 0 &&
     test `printf "$ttt$sss$sss$sss" | git stripspace | wc -l` -gt 0
 '
 
-test_expect_failure \
+test_expect_success \
     'text plus spaces without newline at end should not show spaces' '
-    printf "$ttt$sss" | git stripspace | grep -q "  " ||
-    printf "$ttt$ttt$sss" | git stripspace | grep -q "  " ||
-    printf "$ttt$ttt$ttt$sss" | git stripspace | grep -q "  " ||
-    printf "$ttt$sss$sss" | git stripspace | grep -q "  " ||
-    printf "$ttt$ttt$sss$sss" | git stripspace | grep -q "  " ||
-    printf "$ttt$sss$sss$sss" | git stripspace | grep -q "  "
+    ! (printf "$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (printf "$ttt$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (printf "$ttt$ttt$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (printf "$ttt$sss$sss" | git stripspace | grep -q "  ") &&
+    ! (printf "$ttt$ttt$sss$sss" | git stripspace | grep -q "  ") &&
+    ! (printf "$ttt$sss$sss$sss" | git stripspace | grep -q "  ")
 '
 
 test_expect_success \
@@ -267,14 +280,14 @@ test_expect_success \
     git diff expect actual
 '
 
-test_expect_failure \
+test_expect_success \
     'text plus spaces at end should not show spaces' '
-    echo "$ttt$sss" | git stripspace | grep -q "  " ||
-    echo "$ttt$ttt$sss" | git stripspace | grep -q "  " ||
-    echo "$ttt$ttt$ttt$sss" | git stripspace | grep -q "  " ||
-    echo "$ttt$sss$sss" | git stripspace | grep -q "  " ||
-    echo "$ttt$ttt$sss$sss" | git stripspace | grep -q "  " ||
-    echo "$ttt$sss$sss$sss" | git stripspace | grep -q "  "
+    ! (echo "$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (echo "$ttt$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (echo "$ttt$ttt$ttt$sss" | git stripspace | grep -q "  ") &&
+    ! (echo "$ttt$sss$sss" | git stripspace | grep -q "  ") &&
+    ! (echo "$ttt$ttt$sss$sss" | git stripspace | grep -q "  ") &&
+    ! (echo "$ttt$sss$sss$sss" | git stripspace | grep -q "  ")
 '
 
 test_expect_success \
@@ -326,13 +339,13 @@ test_expect_success \
     git diff expect actual
 '
 
-test_expect_failure \
+test_expect_success \
     'spaces without newline at end should not show spaces' '
-    printf "" | git stripspace | grep -q " " ||
-    printf "$sss" | git stripspace | grep -q " " ||
-    printf "$sss$sss" | git stripspace | grep -q " " ||
-    printf "$sss$sss$sss" | git stripspace | grep -q " " ||
-    printf "$sss$sss$sss$sss" | git stripspace | grep -q " "
+    ! (printf "" | git stripspace | grep -q " ") &&
+    ! (printf "$sss" | git stripspace | grep -q " ") &&
+    ! (printf "$sss$sss" | git stripspace | grep -q " ") &&
+    ! (printf "$sss$sss$sss" | git stripspace | grep -q " ") &&
+    ! (printf "$sss$sss$sss$sss" | git stripspace | grep -q " ")
 '
 
 test_expect_success \
@@ -340,16 +353,48 @@ test_expect_success \
     printf "" >expect &&
 
     printf "" | git stripspace >actual &&
-    git diff expect actual
+    git diff expect actual &&
 
     printf "$sss$sss" | git stripspace >actual &&
-    git diff expect actual
+    git diff expect actual &&
 
     printf "$sss$sss$sss" | git stripspace >actual &&
-    git diff expect actual
+    git diff expect actual &&
 
     printf "$sss$sss$sss$sss" | git stripspace >actual &&
     git diff expect actual
 '
 
+test_expect_success \
+    'consecutive text lines should be unchanged' '
+    printf "$ttt$ttt\n$ttt\n" >expect &&
+    printf "$ttt$ttt\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n$ttt$ttt\n$ttt\n" >expect &&
+    printf "$ttt\n$ttt$ttt\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n$ttt\n$ttt\n$ttt$ttt\n" >expect &&
+    printf "$ttt\n$ttt\n$ttt\n$ttt$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n$ttt\n\n$ttt$ttt\n$ttt\n" >expect &&
+    printf "$ttt\n$ttt\n\n$ttt$ttt\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt$ttt\n\n$ttt\n$ttt$ttt\n" >expect &&
+    printf "$ttt$ttt\n\n$ttt\n$ttt$ttt\n" | git stripspace >actual &&
+    git diff expect actual &&
+
+    printf "$ttt\n$ttt$ttt\n\n$ttt\n" >expect &&
+    printf "$ttt\n$ttt$ttt\n\n$ttt\n" | git stripspace >actual &&
+    git diff expect actual
+'
+
+test_expect_success 'strip comments, too' '
+       test ! -z "$(echo "# comment" | git stripspace)" &&
+       test -z "$(echo "# comment" | git stripspace -s)"
+'
+
 test_done