test_expect_success 'another test, without options' 'test_cmp expect out'
cat << EOF > expect
-diff --git a/x b/x
-index d99af23..8b32fb5 100644
EOF
git diff -w > out
test_expect_success 'another test, with -w' 'test_cmp expect out'
git diff -w -b --ignore-space-at-eol > out
test_expect_success 'another test, with -w -b --ignore-space-at-eol' 'test_cmp expect out'
-tr 'Q' '\015' << EOF > expect
+tr 'Q_' '\015 ' << EOF > expect
diff --git a/x b/x
index d99af23..8b32fb5 100644
--- a/x
@@ -1,6 +1,6 @@
-whitespace at beginning
+ whitespace at beginning
- whitespace change
+ whitespace change
-whitespace in the middle
+white space in the middle
- whitespace at end
+ whitespace at end__
unchanged line
- CR at endQ
+ CR at end
EOF
git diff -b > out
test_expect_success 'another test, with -b' 'test_cmp expect out'
git diff -b --ignore-space-at-eol > out
test_expect_success 'another test, with -b --ignore-space-at-eol' 'test_cmp expect out'
-tr 'Q' '\015' << EOF > expect
+tr 'Q_' '\015 ' << EOF > expect
diff --git a/x b/x
index d99af23..8b32fb5 100644
--- a/x
+ whitespace at beginning
+whitespace change
+white space in the middle
- whitespace at end
+ whitespace at end__
unchanged line
- CR at endQ
+ CR at end
EOF
git diff --ignore-space-at-eol > out
test_expect_success 'another test, with --ignore-space-at-eol' 'test_cmp expect out'
+test_expect_success 'ignore-blank-lines: only new lines' '
+ test_seq 5 >x &&
+ git update-index x &&
+ test_seq 5 | sed "/3/i \\
+" >x &&
+ git diff --ignore-blank-lines >out &&
+ >expect &&
+ test_cmp out expect
+'
+
+test_expect_success 'ignore-blank-lines: only new lines with space' '
+ test_seq 5 >x &&
+ git update-index x &&
+ test_seq 5 | sed "/3/i \ " >x &&
+ git diff -w --ignore-blank-lines >out &&
+ >expect &&
+ test_cmp out expect
+'
+
+test_expect_success 'ignore-blank-lines: after change' '
+ cat <<-\EOF >x &&
+ 1
+ 2
+
+ 3
+ 4
+ 5
+
+ 6
+ 7
+ EOF
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+
+ 1
+ 2
+ 3
+ 4
+ 5
+ 6
+
+ 7
+ EOF
+ git diff --inter-hunk-context=100 --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,6 +1,7 @@
+ +change
+ +
+ 1
+ 2
+ -
+ 3
+ 4
+ 5
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: before change' '
+ cat <<-\EOF >x &&
+ 1
+ 2
+
+ 3
+ 4
+ 5
+ 6
+ 7
+ EOF
+ git update-index x &&
+ cat <<-\EOF >x &&
+
+ 1
+ 2
+ 3
+ 4
+ 5
+
+ 6
+ 7
+ change
+ EOF
+ git diff --inter-hunk-context=100 --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -4,5 +4,7 @@
+ 3
+ 4
+ 5
+ +
+ 6
+ 7
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: between changes' '
+ cat <<-\EOF >x &&
+ 1
+ 2
+ 3
+ 4
+ 5
+
+
+ 6
+ 7
+ 8
+ 9
+ 10
+ EOF
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+ 1
+ 2
+
+ 3
+ 4
+ 5
+ 6
+ 7
+ 8
+
+ 9
+ 10
+ change
+ EOF
+ git diff --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,5 +1,7 @@
+ +change
+ 1
+ 2
+ +
+ 3
+ 4
+ 5
+ @@ -8,5 +8,7 @@
+ 6
+ 7
+ 8
+ +
+ 9
+ 10
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: between changes (with interhunkctx)' '
+ test_seq 10 >x &&
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+ 1
+ 2
+
+ 3
+ 4
+ 5
+
+ 6
+ 7
+ 8
+ 9
+
+ 10
+ change
+ EOF
+ git diff --inter-hunk-context=2 --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,10 +1,15 @@
+ +change
+ 1
+ 2
+ +
+ 3
+ 4
+ 5
+ +
+ 6
+ 7
+ 8
+ 9
+ +
+ 10
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: scattered spaces' '
+ test_seq 10 >x &&
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+ 1
+ 2
+ 3
+
+ 4
+
+ 5
+
+ 6
+
+
+ 7
+
+ 8
+ 9
+ 10
+ change
+ EOF
+ git diff --inter-hunk-context=4 --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,3 +1,4 @@
+ +change
+ 1
+ 2
+ 3
+ @@ -8,3 +15,4 @@
+ 8
+ 9
+ 10
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: spaces coalesce' '
+ test_seq 6 >x &&
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+ 1
+ 2
+ 3
+
+ 4
+
+ 5
+
+ 6
+ change
+ EOF
+ git diff --inter-hunk-context=4 --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,6 +1,11 @@
+ +change
+ 1
+ 2
+ 3
+ +
+ 4
+ +
+ 5
+ +
+ 6
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
+test_expect_success 'ignore-blank-lines: mix changes and blank lines' '
+ test_seq 16 >x &&
+ git update-index x &&
+ cat <<-\EOF >x &&
+ change
+ 1
+ 2
+
+ 3
+ 4
+ 5
+ change
+ 6
+ 7
+ 8
+
+ 9
+ 10
+ 11
+ change
+ 12
+ 13
+ 14
+
+ 15
+ 16
+ change
+ EOF
+ git diff --ignore-blank-lines >out.tmp &&
+ cat <<-\EOF >expected &&
+ diff --git a/x b/x
+ --- a/x
+ +++ b/x
+ @@ -1,8 +1,11 @@
+ +change
+ 1
+ 2
+ +
+ 3
+ 4
+ 5
+ +change
+ 6
+ 7
+ 8
+ @@ -9,8 +13,11 @@
+ 9
+ 10
+ 11
+ +change
+ 12
+ 13
+ 14
+ +
+ 15
+ 16
+ +change
+ EOF
+ compare_diff_patch expected out.tmp
+'
+
test_expect_success 'check mixed spaces and tabs in indent' '
# This is indented with SP HT SP.
test_expect_success 'check spaces as indentation (indent-with-non-tab: off)' '
- git config core.whitespace "-indent-with-non-tab"
+ git config core.whitespace "-indent-with-non-tab" &&
echo " foo ();" > x &&
git diff --check
'
+test_expect_success 'ditto, but tabwidth=9' '
+
+ git config core.whitespace "indent-with-non-tab,tabwidth=9" &&
+ git diff --check
+
+'
+
test_expect_success 'check tabs and spaces as indentation (indent-with-non-tab: on)' '
git config core.whitespace "indent-with-non-tab" &&
'
+test_expect_success 'ditto, but tabwidth=10' '
+
+ git config core.whitespace "indent-with-non-tab,tabwidth=10" &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'ditto, but tabwidth=20' '
+
+ git config core.whitespace "indent-with-non-tab,tabwidth=20" &&
+ git diff --check
+
+'
+
+test_expect_success 'check tabs as indentation (tab-in-indent: off)' '
+
+ git config core.whitespace "-tab-in-indent" &&
+ echo " foo ();" > x &&
+ git diff --check
+
+'
+
+test_expect_success 'check tabs as indentation (tab-in-indent: on)' '
+
+ git config core.whitespace "tab-in-indent" &&
+ echo " foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tabs and spaces as indentation (tab-in-indent: on)' '
+
+ git config core.whitespace "tab-in-indent" &&
+ echo " foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'ditto, but tabwidth=1 (must be irrelevant)' '
+
+ git config core.whitespace "tab-in-indent,tabwidth=1" &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tab-in-indent and indent-with-non-tab conflict' '
+
+ git config core.whitespace "tab-in-indent,indent-with-non-tab" &&
+ echo "foo ();" > x &&
+ test_must_fail git diff --check
+
+'
+
+test_expect_success 'check tab-in-indent excluded from wildcard whitespace attribute' '
+
+ git config --unset core.whitespace &&
+ echo "x whitespace" > .gitattributes &&
+ echo " foo ();" > x &&
+ git diff --check &&
+ rm -f .gitattributes
+
+'
+
test_expect_success 'line numbers in --check output are correct' '
echo "" > x &&
'
-test_expect_success 'checkdiff detects trailing blank lines' '
+test_expect_success 'checkdiff detects new trailing blank lines (1)' '
echo "foo();" >x &&
echo "" >>x &&
- git diff --check | grep "ends with blank"
+ git diff --check | grep "new blank line"
+'
+
+test_expect_success 'checkdiff detects new trailing blank lines (2)' '
+ { echo a; echo b; echo; echo; } >x &&
+ git add x &&
+ { echo a; echo; echo; echo; echo; } >x &&
+ git diff --check | grep "new blank line"
'
test_expect_success 'checkdiff allows new blank lines' '
git diff --check
'
+cat <<EOF >expect
+EOF
+test_expect_success 'whitespace-only changes not reported' '
+ git reset --hard &&
+ echo >x "hello world" &&
+ git add x &&
+ git commit -m "hello 1" &&
+ echo >x "hello world" &&
+ git diff -b >actual &&
+ test_cmp expect actual
+'
+
+cat <<EOF >expect
+diff --git a/x b/z
+similarity index NUM%
+rename from x
+rename to z
+index 380c32a..a97b785 100644
+EOF
+test_expect_success 'whitespace-only changes reported across renames' '
+ git reset --hard &&
+ for i in 1 2 3 4 5 6 7 8 9; do echo "$i$i$i$i$i$i"; done >x &&
+ git add x &&
+ git commit -m "base" &&
+ sed -e "5s/^/ /" x >z &&
+ git rm x &&
+ git add z &&
+ git diff -w -M --cached |
+ sed -e "/^similarity index /s/[0-9][0-9]*/NUM/" >actual &&
+ test_cmp expect actual
+'
+
+cat >expected <<\EOF
+diff --git a/empty b/void
+similarity index 100%
+rename from empty
+rename to void
+EOF
+
+test_expect_success 'rename empty' '
+ git reset --hard &&
+ >empty &&
+ git add empty &&
+ git commit -m empty &&
+ git mv empty void &&
+ git diff -w --cached -M >current &&
+ test_cmp expected current
+'
+
test_expect_success 'combined diff with autocrlf conversion' '
git reset --hard &&
'
+# Start testing the colored format for whitespace checks
+
+test_expect_success 'setup diff colors' '
+ git config color.diff always &&
+ git config color.diff.plain normal &&
+ git config color.diff.meta bold &&
+ git config color.diff.frag cyan &&
+ git config color.diff.func normal &&
+ git config color.diff.old red &&
+ git config color.diff.new green &&
+ git config color.diff.commit yellow &&
+ git config color.diff.whitespace "normal red" &&
+
+ git config core.autocrlf false
+'
+cat >expected <<\EOF
+<BOLD>diff --git a/x b/x<RESET>
+<BOLD>index 9daeafb..2874b91 100644<RESET>
+<BOLD>--- a/x<RESET>
+<BOLD>+++ b/x<RESET>
+<CYAN>@@ -1 +1,4 @@<RESET>
+ test<RESET>
+<GREEN>+<RESET><GREEN>{<RESET>
+<GREEN>+<RESET><BRED> <RESET>
+<GREEN>+<RESET><GREEN>}<RESET>
+EOF
+
+test_expect_success 'diff that introduces a line with only tabs' '
+ git config core.whitespace blank-at-eol &&
+ git reset --hard &&
+ echo "test" > x &&
+ git commit -m "initial" x &&
+ echo "{NTN}" | tr "NT" "\n\t" >> x &&
+ git -c color.diff=always diff | test_decode_color >current &&
+ test_cmp expected current
+'
+
test_done