t3404 (rebase -i): introduce helper to check position of HEAD

diff --git a/t/t4124-apply-ws-rule.sh b/t/t4124-apply-ws-rule.sh
index 451d75e3fb2ea3efb17825f6af92fa3213c620aa..414b09b2b3d820852c86d0fa80d648417ca76f21 100755 (executable)
--- a/t/t4124-apply-ws-rule.sh
+++ b/t/t4124-apply-ws-rule.sh
@@ -11,21 +11,22 @@ prepare_test_file () {
        #       !  trailing-space
        #       @  space-before-tab
        #       #  indent-with-non-tab
+       #       %  tab-in-indent
        sed -e "s/_/ /g" -e "s/>/       /" <<-\EOF
                An_SP in an ordinary line>and a HT.
-               >A HT.
-               _>A SP and a HT (@).
-               _>_A SP, a HT and a SP (@).
+               >A HT (%).
+               _>A SP and a HT (@%).
+               _>_A SP, a HT and a SP (@%).
                _______Seven SP.
                ________Eight SP (#).
-               _______>Seven SP and a HT (@).
-               ________>Eight SP and a HT (@#).
-               _______>_Seven SP, a HT and a SP (@).
-               ________>_Eight SP, a HT and a SP (@#).
+               _______>Seven SP and a HT (@%).
+               ________>Eight SP and a HT (@#%).
+               _______>_Seven SP, a HT and a SP (@%).
+               ________>_Eight SP, a HT and a SP (@#%).
                _______________Fifteen SP (#).
-               _______________>Fifteen SP and a HT (@#).
+               _______________>Fifteen SP and a HT (@#%).
                ________________Sixteen SP (#).
-               ________________>Sixteen SP and a HT (@#).
+               ________________>Sixteen SP and a HT (@#%).
                _____a__Five SP, a non WS, two SP.
                A line with a (!) trailing SP_
                A line with a (!) trailing HT>
@@ -39,12 +40,11 @@ apply_patch () {
 }
 
 test_fix () {
-
        # fix should not barf
        apply_patch --whitespace=fix || return 1
 
        # find touched lines
-       diff file target | sed -n -e "s/^> //p" >fixed
+       $DIFF file target | sed -n -e "s/^> //p" >fixed
 
        # the changed lines are all expeced to change
        fixed_cnt=$(wc -l <fixed)
@@ -85,14 +85,14 @@ test_expect_success setup '
 test_expect_success 'whitespace=nowarn, default rule' '
 
        apply_patch --whitespace=nowarn &&
-       diff file target
+       test_cmp file target
 
 '
 
 test_expect_success 'whitespace=warn, default rule' '
 
        apply_patch --whitespace=warn &&
-       diff file target
+       test_cmp file target
 
 '
 
@@ -108,7 +108,7 @@ test_expect_success 'whitespace=error-all, no rule' '
 
        git config core.whitespace -trailing,-space-before,-indent &&
        apply_patch --whitespace=error-all &&
-       diff file target
+       test_cmp file target
 
 '
 
@@ -117,7 +117,7 @@ test_expect_success 'whitespace=error-all, no rule (attribute)' '
        git config --unset core.whitespace &&
        echo "target -whitespace" >.gitattributes &&
        apply_patch --whitespace=error-all &&
-       diff file target
+       test_cmp file target
 
 '
 
@@ -130,20 +130,25 @@ do
                for i in - ''
                do
                        case "$i" in '') ti='#' ;; *) ti= ;; esac
-                       rule=${t}trailing,${s}space,${i}indent
-
-                       rm -f .gitattributes
-                       test_expect_success "rule=$rule" '
-                               git config core.whitespace "$rule" &&
-                               test_fix "$tt$ts$ti"
-                       '
-
-                       test_expect_success "rule=$rule (attributes)" '
-                               git config --unset core.whitespace &&
-                               echo "target whitespace=$rule" >.gitattributes &&
-                               test_fix "$tt$ts$ti"
-                       '
-
+                       for h in - ''
+                       do
+                               [ -z "$h$i" ] && continue
+                               case "$h" in '') th='%' ;; *) th= ;; esac
+                               rule=${t}trailing,${s}space,${i}indent,${h}tab
+
+                               rm -f .gitattributes
+                               test_expect_success "rule=$rule" '
+                                       git config core.whitespace "$rule" &&
+                                       test_fix "$tt$ts$ti$th"
+                               '
+
+                               test_expect_success "rule=$rule (attributes)" '
+                                       git config --unset core.whitespace &&
+                                       echo "target whitespace=$rule" >.gitattributes &&
+                                       test_fix "$tt$ts$ti$th"
+                               '
+
+                       done
                done
        done
 done
@@ -363,7 +368,7 @@ test_expect_success 'missing blanks at EOF must only match blank lines' '
        git diff -- one >patch &&
 
        echo a >one &&
-       test_must_fail git apply patch
+       test_must_fail git apply patch &&
        test_must_fail git apply --whitespace=fix patch &&
        test_must_fail git apply --ignore-space-change --whitespace=fix patch
 '
@@ -414,7 +419,7 @@ test_expect_success 'same, but with CR-LF line endings && cr-at-eol set' '
        printf "b\r\n" >>one &&
        printf "c\r\n" >>one &&
        cp one save-one &&
-       printf "                 \r\n" >>one
+       printf "                 \r\n" >>one &&
        git add one &&
        printf "d\r\n" >>one &&
        cp one expect &&
@@ -431,7 +436,7 @@ test_expect_success 'same, but with CR-LF line endings && cr-at-eol unset' '
        printf "b\r\n" >>one &&
        printf "c\r\n" >>one &&
        cp one save-one &&
-       printf "                 \r\n" >>one
+       printf "                 \r\n" >>one &&
        git add one &&
        cp one expect &&
        printf "d\r\n" >>one &&