test-*-cache-tree: setup git dir

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 2434157aa7632551e8f7b9db59b34405f8fbefa3..289806d0c7eb02e0acc5244df5e3999d45b4e085 100755 (executable)
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -869,7 +869,8 @@ test_expect_success 'diff that introduces and removes ws breakages' '
        test_cmp expected current
 '
 
-test_expect_success 'the same with --ws-error-highlight' '
+test_expect_success 'ws-error-highlight test setup' '
+
        git reset --hard &&
        {
                echo "0. blank-at-eol " &&
@@ -882,10 +883,7 @@ test_expect_success 'the same with --ws-error-highlight' '
                echo "2. and a new line "
        } >x &&
 
-       git -c color.diff=always diff --ws-error-highlight=default,old |
-       test_decode_color >current &&
-
-       cat >expected <<-\EOF &&
+       cat >expect.default-old <<-\EOF &&
        <BOLD>diff --git a/x b/x<RESET>
        <BOLD>index d0233a2..700886e 100644<RESET>
        <BOLD>--- a/x<RESET>
@@ -897,12 +895,7 @@ test_expect_success 'the same with --ws-error-highlight' '
        <GREEN>+<RESET><GREEN>2. and a new line<RESET><BLUE> <RESET>
        EOF
 
-       test_cmp expected current &&
-
-       git -c color.diff=always diff --ws-error-highlight=all |
-       test_decode_color >current &&
-
-       cat >expected <<-\EOF &&
+       cat >expect.all <<-\EOF &&
        <BOLD>diff --git a/x b/x<RESET>
        <BOLD>index d0233a2..700886e 100644<RESET>
        <BOLD>--- a/x<RESET>
@@ -914,12 +907,7 @@ test_expect_success 'the same with --ws-error-highlight' '
        <GREEN>+<RESET><GREEN>2. and a new line<RESET><BLUE> <RESET>
        EOF
 
-       test_cmp expected current &&
-
-       git -c color.diff=always diff --ws-error-highlight=none |
-       test_decode_color >current &&
-
-       cat >expected <<-\EOF &&
+       cat >expect.none <<-\EOF
        <BOLD>diff --git a/x b/x<RESET>
        <BOLD>index d0233a2..700886e 100644<RESET>
        <BOLD>--- a/x<RESET>
@@ -931,7 +919,57 @@ test_expect_success 'the same with --ws-error-highlight' '
        <GREEN>+2. and a new line <RESET>
        EOF
 
-       test_cmp expected current
+'
+
+test_expect_success 'test --ws-error-highlight option' '
+
+       git -c color.diff=always diff --ws-error-highlight=default,old |
+       test_decode_color >current &&
+       test_cmp expect.default-old current &&
+
+       git -c color.diff=always diff --ws-error-highlight=all |
+       test_decode_color >current &&
+       test_cmp expect.all current &&
+
+       git -c color.diff=always diff --ws-error-highlight=none |
+       test_decode_color >current &&
+       test_cmp expect.none current
+
+'
+
+test_expect_success 'test diff.wsErrorHighlight config' '
+
+       git -c color.diff=always -c diff.wsErrorHighlight=default,old diff |
+       test_decode_color >current &&
+       test_cmp expect.default-old current &&
+
+       git -c color.diff=always -c diff.wsErrorHighlight=all diff |
+       test_decode_color >current &&
+       test_cmp expect.all current &&
+
+       git -c color.diff=always -c diff.wsErrorHighlight=none diff |
+       test_decode_color >current &&
+       test_cmp expect.none current
+
+'
+
+test_expect_success 'option overrides diff.wsErrorHighlight' '
+
+       git -c color.diff=always -c diff.wsErrorHighlight=none \
+               diff --ws-error-highlight=default,old |
+       test_decode_color >current &&
+       test_cmp expect.default-old current &&
+
+       git -c color.diff=always -c diff.wsErrorHighlight=default \
+               diff --ws-error-highlight=all |
+       test_decode_color >current &&
+       test_cmp expect.all current &&
+
+       git -c color.diff=always -c diff.wsErrorHighlight=all \
+               diff --ws-error-highlight=none |
+       test_decode_color >current &&
+       test_cmp expect.none current
+
 '
 
 test_done