t8003: avoid suppressing git's exit code

Update t8003-blame-corner-cases.sh to redirect git-blame output
to a temporary file instead of piping it directly to not hide
the exit code of git commands behind pipes, as a crash in git
might go unnoticed.

Signed-off-by: Trieu Huynh <vikingtc4@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t8003-blame-corner-cases.sh b/t/t8003-blame-corner-cases.sh
index 731265541acf9fb0ed4dcc216b662daa897f814d..17ed5af12176e772be3b7f0a134024def15605b3 100755 (executable)
--- a/t/t8003-blame-corner-cases.sh
+++ b/t/t8003-blame-corner-cases.sh
@@ -50,67 +50,78 @@ test_expect_success setup '
 
 test_expect_success 'straight copy without -C' '
 
-       git blame uno | grep Second
+       git blame uno >actual &&
+       test_grep Second actual
 
 '
 
 test_expect_success 'straight move without -C' '
 
-       git blame dos | grep Initial
+       git blame dos >actual &&
+       test_grep Initial actual
 
 '
 
 test_expect_success 'straight copy with -C' '
 
-       git blame -C1 uno | grep Second
+       git blame -C1 uno >actual &&
+       test_grep Second actual
 
 '
 
 test_expect_success 'straight move with -C' '
 
-       git blame -C1 dos | grep Initial
+       git blame -C1 dos >actual &&
+       test_grep Initial actual
 
 '
 
 test_expect_success 'straight copy with -C -C' '
 
-       git blame -C -C1 uno | grep Initial
+       git blame -C -C1 uno >actual &&
+       test_grep Initial actual
 
 '
 
 test_expect_success 'straight move with -C -C' '
 
-       git blame -C -C1 dos | grep Initial
+       git blame -C -C1 dos >actual &&
+       test_grep Initial actual
 
 '
 
 test_expect_success 'append without -C' '
 
-       git blame -L2 tres | grep Second
+       git blame -L2 tres >actual &&
+       test_grep Second actual
 
 '
 
 test_expect_success 'append with -C' '
 
-       git blame -L2 -C1 tres | grep Second
+       git blame -L2 -C1 tres >actual &&
+       test_grep Second actual
 
 '
 
 test_expect_success 'append with -C -C' '
 
-       git blame -L2 -C -C1 tres | grep Second
+       git blame -L2 -C -C1 tres >actual &&
+       test_grep Second actual
 
 '
 
 test_expect_success 'append with -C -C -C' '
 
-       git blame -L2 -C -C -C1 tres | grep Initial
+       git blame -L2 -C -C -C1 tres >actual &&
+       test_grep Initial actual
 
 '
 
 test_expect_success 'blame wholesale copy' '
 
-       git blame -f -C -C1 HEAD^ -- cow | sed -e "$pick_fc" >current &&
+       git blame -f -C -C1 HEAD^ -- cow >actual &&
+       sed -e "$pick_fc" actual >current &&
        cat >expected <<-\EOF &&
        mouse-Initial
        mouse-Second
@@ -122,7 +133,8 @@ test_expect_success 'blame wholesale copy' '
 
 test_expect_success 'blame wholesale copy and more' '
 
-       git blame -f -C -C1 HEAD -- cow | sed -e "$pick_fc" >current &&
+       git blame -f -C -C1 HEAD -- cow >actual &&
+       sed -e "$pick_fc" actual >current &&
        cat >expected <<-\EOF &&
        mouse-Initial
        mouse-Second
@@ -144,7 +156,8 @@ test_expect_success 'blame wholesale copy and more in the index' '
        EOF
        git add horse &&
        test_when_finished "git rm -f horse" &&
-       git blame -f -C -C1 -- horse | sed -e "$pick_fc" >current &&
+       git blame -f -C -C1 -- horse >actual &&
+       sed -e "$pick_fc" actual >current &&
        cat >expected <<-\EOF &&
        mouse-Initial
        mouse-Second
@@ -168,7 +181,8 @@ test_expect_success 'blame during cherry-pick with file rename conflict' '
        (git cherry-pick HEAD@{1} || test $? -eq 1) &&
        git show HEAD@{1}:rodent > rodent &&
        git add rodent &&
-       git blame -f -C -C1 rodent | sed -e "$pick_fc" >current &&
+       git blame -f -C -C1 rodent >actual &&
+       sed -e "$pick_fc" actual >current &&
        cat >expected <<-\EOF &&
        mouse-Initial
        mouse-Second
@@ -246,14 +260,14 @@ test_expect_success 'setup file with CRLF newlines' '
 test_expect_success 'blame file with CRLF core.autocrlf true' '
        git config core.autocrlf true &&
        git blame crlffile >actual &&
-       grep "A U Thor" actual
+       test_grep "A U Thor" actual
 '
 
 test_expect_success 'blame file with CRLF attributes text' '
        git config core.autocrlf false &&
        echo "crlffile text" >.gitattributes &&
        git blame crlffile >actual &&
-       grep "A U Thor" actual
+       test_grep "A U Thor" actual
 '
 
 test_expect_success 'blame file with CRLF core.autocrlf=true' '
@@ -267,7 +281,7 @@ test_expect_success 'blame file with CRLF core.autocrlf=true' '
        git checkout crlfinrepo &&
        rm tmp &&
        git blame crlfinrepo >actual &&
-       grep "A U Thor" actual
+       test_grep "A U Thor" actual
 '
 
 test_expect_success 'setup coalesce tests' '