summaryrefslogtreecommitdiff
path: root/t
diff options
context:
space:
mode:
Diffstat (limited to 't')
-rwxr-xr-xt/t4015-diff-whitespace.sh434
1 files changed, 434 insertions, 0 deletions
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 289806d0c7..c3b697411a 100755
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -972,4 +972,438 @@ test_expect_success 'option overrides diff.wsErrorHighlight' '
'
+test_expect_success 'detect moved code, complete file' '
+ git reset --hard &&
+ cat <<-\EOF >test.c &&
+ #include<stdio.h>
+ main()
+ {
+ printf("Hello World");
+ }
+ EOF
+ git add test.c &&
+ git commit -m "add main function" &&
+ git mv test.c main.c &&
+ test_config color.diff.oldMoved "normal red" &&
+ test_config color.diff.newMoved "normal green" &&
+ git diff HEAD --color-moved=zebra --no-renames | test_decode_color >actual &&
+ cat >expected <<-\EOF &&
+ <BOLD>diff --git a/main.c b/main.c<RESET>
+ <BOLD>new file mode 100644<RESET>
+ <BOLD>index 0000000..a986c57<RESET>
+ <BOLD>--- /dev/null<RESET>
+ <BOLD>+++ b/main.c<RESET>
+ <CYAN>@@ -0,0 +1,5 @@<RESET>
+ <BGREEN>+<RESET><BGREEN>#include<stdio.h><RESET>
+ <BGREEN>+<RESET><BGREEN>main()<RESET>
+ <BGREEN>+<RESET><BGREEN>{<RESET>
+ <BGREEN>+<RESET><BGREEN>printf("Hello World");<RESET>
+ <BGREEN>+<RESET><BGREEN>}<RESET>
+ <BOLD>diff --git a/test.c b/test.c<RESET>
+ <BOLD>deleted file mode 100644<RESET>
+ <BOLD>index a986c57..0000000<RESET>
+ <BOLD>--- a/test.c<RESET>
+ <BOLD>+++ /dev/null<RESET>
+ <CYAN>@@ -1,5 +0,0 @@<RESET>
+ <BRED>-#include<stdio.h><RESET>
+ <BRED>-main()<RESET>
+ <BRED>-{<RESET>
+ <BRED>-printf("Hello World");<RESET>
+ <BRED>-}<RESET>
+ EOF
+
+ test_cmp expected actual
+'
+
+test_expect_success 'detect malicious moved code, inside file' '
+ test_config color.diff.oldMoved "normal red" &&
+ test_config color.diff.newMoved "normal green" &&
+ test_config color.diff.oldMovedAlternative "blue" &&
+ test_config color.diff.newMovedAlternative "yellow" &&
+ git reset --hard &&
+ cat <<-\EOF >main.c &&
+ #include<stdio.h>
+ int stuff()
+ {
+ printf("Hello ");
+ printf("World\n");
+ }
+
+ int secure_foo(struct user *u)
+ {
+ if (!u->is_allowed_foo)
+ return;
+ foo(u);
+ }
+
+ int main()
+ {
+ foo();
+ }
+ EOF
+ cat <<-\EOF >test.c &&
+ #include<stdio.h>
+ int bar()
+ {
+ printf("Hello World, but different\n");
+ }
+
+ int another_function()
+ {
+ bar();
+ }
+ EOF
+ git add main.c test.c &&
+ git commit -m "add main and test file" &&
+ cat <<-\EOF >main.c &&
+ #include<stdio.h>
+ int stuff()
+ {
+ printf("Hello ");
+ printf("World\n");
+ }
+
+ int main()
+ {
+ foo();
+ }
+ EOF
+ cat <<-\EOF >test.c &&
+ #include<stdio.h>
+ int bar()
+ {
+ printf("Hello World, but different\n");
+ }
+
+ int secure_foo(struct user *u)
+ {
+ foo(u);
+ if (!u->is_allowed_foo)
+ return;
+ }
+
+ int another_function()
+ {
+ bar();
+ }
+ EOF
+ git diff HEAD --no-renames --color-moved=zebra| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/main.c b/main.c<RESET>
+ <BOLD>index 27a619c..7cf9336 100644<RESET>
+ <BOLD>--- a/main.c<RESET>
+ <BOLD>+++ b/main.c<RESET>
+ <CYAN>@@ -5,13 +5,6 @@<RESET> <RESET>printf("Hello ");<RESET>
+ printf("World\n");<RESET>
+ }<RESET>
+ <RESET>
+ <BRED>-int secure_foo(struct user *u)<RESET>
+ <BRED>-{<RESET>
+ <BLUE>-if (!u->is_allowed_foo)<RESET>
+ <BLUE>-return;<RESET>
+ <BRED>-foo(u);<RESET>
+ <BLUE>-}<RESET>
+ <BLUE>-<RESET>
+ int main()<RESET>
+ {<RESET>
+ foo();<RESET>
+ <BOLD>diff --git a/test.c b/test.c<RESET>
+ <BOLD>index 1dc1d85..2bedec9 100644<RESET>
+ <BOLD>--- a/test.c<RESET>
+ <BOLD>+++ b/test.c<RESET>
+ <CYAN>@@ -4,6 +4,13 @@<RESET> <RESET>int bar()<RESET>
+ printf("Hello World, but different\n");<RESET>
+ }<RESET>
+ <RESET>
+ <BGREEN>+<RESET><BGREEN>int secure_foo(struct user *u)<RESET>
+ <BGREEN>+<RESET><BGREEN>{<RESET>
+ <YELLOW>+<RESET><YELLOW>foo(u);<RESET>
+ <BGREEN>+<RESET><BGREEN>if (!u->is_allowed_foo)<RESET>
+ <BGREEN>+<RESET><BGREEN>return;<RESET>
+ <YELLOW>+<RESET><YELLOW>}<RESET>
+ <YELLOW>+<RESET>
+ int another_function()<RESET>
+ {<RESET>
+ bar();<RESET>
+ EOF
+
+ test_cmp expected actual
+'
+
+test_expect_success 'plain moved code, inside file' '
+ test_config color.diff.oldMoved "normal red" &&
+ test_config color.diff.newMoved "normal green" &&
+ test_config color.diff.oldMovedAlternative "blue" &&
+ test_config color.diff.newMovedAlternative "yellow" &&
+ # needs previous test as setup
+ git diff HEAD --no-renames --color-moved=plain| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/main.c b/main.c<RESET>
+ <BOLD>index 27a619c..7cf9336 100644<RESET>
+ <BOLD>--- a/main.c<RESET>
+ <BOLD>+++ b/main.c<RESET>
+ <CYAN>@@ -5,13 +5,6 @@<RESET> <RESET>printf("Hello ");<RESET>
+ printf("World\n");<RESET>
+ }<RESET>
+ <RESET>
+ <BRED>-int secure_foo(struct user *u)<RESET>
+ <BRED>-{<RESET>
+ <BRED>-if (!u->is_allowed_foo)<RESET>
+ <BRED>-return;<RESET>
+ <BRED>-foo(u);<RESET>
+ <BRED>-}<RESET>
+ <BRED>-<RESET>
+ int main()<RESET>
+ {<RESET>
+ foo();<RESET>
+ <BOLD>diff --git a/test.c b/test.c<RESET>
+ <BOLD>index 1dc1d85..2bedec9 100644<RESET>
+ <BOLD>--- a/test.c<RESET>
+ <BOLD>+++ b/test.c<RESET>
+ <CYAN>@@ -4,6 +4,13 @@<RESET> <RESET>int bar()<RESET>
+ printf("Hello World, but different\n");<RESET>
+ }<RESET>
+ <RESET>
+ <BGREEN>+<RESET><BGREEN>int secure_foo(struct user *u)<RESET>
+ <BGREEN>+<RESET><BGREEN>{<RESET>
+ <BGREEN>+<RESET><BGREEN>foo(u);<RESET>
+ <BGREEN>+<RESET><BGREEN>if (!u->is_allowed_foo)<RESET>
+ <BGREEN>+<RESET><BGREEN>return;<RESET>
+ <BGREEN>+<RESET><BGREEN>}<RESET>
+ <BGREEN>+<RESET>
+ int another_function()<RESET>
+ {<RESET>
+ bar();<RESET>
+ EOF
+
+ test_cmp expected actual
+'
+
+test_expect_success 'detect permutations inside moved code -- dimmed_zebra' '
+ git reset --hard &&
+ cat <<-\EOF >lines.txt &&
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ line 6
+ line 7
+ line 8
+ line 9
+ line 10
+ line 11
+ line 12
+ line 13
+ line 14
+ line 15
+ line 16
+ EOF
+ git add lines.txt &&
+ git commit -m "add poetry" &&
+ cat <<-\EOF >lines.txt &&
+ line 4
+ line 5
+ line 6
+ line 7
+ line 8
+ line 9
+ line 1
+ line 2
+ line 3
+ line 14
+ line 15
+ line 16
+ line 10
+ line 11
+ line 12
+ line 13
+ EOF
+ test_config color.diff.oldMoved "magenta" &&
+ test_config color.diff.newMoved "cyan" &&
+ test_config color.diff.oldMovedAlternative "blue" &&
+ test_config color.diff.newMovedAlternative "yellow" &&
+ test_config color.diff.oldMovedDimmed "normal magenta" &&
+ test_config color.diff.newMovedDimmed "normal cyan" &&
+ test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
+ test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
+ git diff HEAD --no-renames --color-moved=dimmed_zebra| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
+ <BOLD>index 47ea9c3..ba96a38 100644<RESET>
+ <BOLD>--- a/lines.txt<RESET>
+ <BOLD>+++ b/lines.txt<RESET>
+ <CYAN>@@ -1,16 +1,16 @@<RESET>
+ <BMAGENTA>-line 1<RESET>
+ <BMAGENTA>-line 2<RESET>
+ <BMAGENTA>-line 3<RESET>
+ line 4<RESET>
+ line 5<RESET>
+ line 6<RESET>
+ line 7<RESET>
+ line 8<RESET>
+ line 9<RESET>
+ <BCYAN>+<RESET><BCYAN>line 1<RESET>
+ <BCYAN>+<RESET><BCYAN>line 2<RESET>
+ <CYAN>+<RESET><CYAN>line 3<RESET>
+ <YELLOW>+<RESET><YELLOW>line 14<RESET>
+ <BYELLOW>+<RESET><BYELLOW>line 15<RESET>
+ <BYELLOW>+<RESET><BYELLOW>line 16<RESET>
+ line 10<RESET>
+ line 11<RESET>
+ line 12<RESET>
+ line 13<RESET>
+ <BMAGENTA>-line 14<RESET>
+ <BMAGENTA>-line 15<RESET>
+ <BMAGENTA>-line 16<RESET>
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'cmd option assumes configured colored-moved' '
+ test_config color.diff.oldMoved "magenta" &&
+ test_config color.diff.newMoved "cyan" &&
+ test_config color.diff.oldMovedAlternative "blue" &&
+ test_config color.diff.newMovedAlternative "yellow" &&
+ test_config color.diff.oldMovedDimmed "normal magenta" &&
+ test_config color.diff.newMovedDimmed "normal cyan" &&
+ test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
+ test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
+ test_config diff.colorMoved zebra &&
+ git diff HEAD --no-renames --color-moved| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
+ <BOLD>index 47ea9c3..ba96a38 100644<RESET>
+ <BOLD>--- a/lines.txt<RESET>
+ <BOLD>+++ b/lines.txt<RESET>
+ <CYAN>@@ -1,16 +1,16 @@<RESET>
+ <MAGENTA>-line 1<RESET>
+ <MAGENTA>-line 2<RESET>
+ <MAGENTA>-line 3<RESET>
+ line 4<RESET>
+ line 5<RESET>
+ line 6<RESET>
+ line 7<RESET>
+ line 8<RESET>
+ line 9<RESET>
+ <CYAN>+<RESET><CYAN>line 1<RESET>
+ <CYAN>+<RESET><CYAN>line 2<RESET>
+ <CYAN>+<RESET><CYAN>line 3<RESET>
+ <YELLOW>+<RESET><YELLOW>line 14<RESET>
+ <YELLOW>+<RESET><YELLOW>line 15<RESET>
+ <YELLOW>+<RESET><YELLOW>line 16<RESET>
+ line 10<RESET>
+ line 11<RESET>
+ line 12<RESET>
+ line 13<RESET>
+ <MAGENTA>-line 14<RESET>
+ <MAGENTA>-line 15<RESET>
+ <MAGENTA>-line 16<RESET>
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'no effect from --color-moved with --word-diff' '
+ cat <<-\EOF >text.txt &&
+ Lorem Ipsum is simply dummy text of the printing and typesetting industry.
+ EOF
+ git add text.txt &&
+ git commit -a -m "clean state" &&
+ cat <<-\EOF >text.txt &&
+ simply Lorem Ipsum dummy is text of the typesetting and printing industry.
+ EOF
+ git diff --color-moved --word-diff >actual &&
+ git diff --word-diff >expect &&
+ test_cmp expect actual
+'
+
+test_expect_success 'move detection ignoring whitespace ' '
+ git reset --hard &&
+ cat <<\EOF >lines.txt &&
+line 1
+line 2
+line 3
+line 4
+line 5
+line 6
+line 7
+EOF
+ git add lines.txt &&
+ git commit -m "add poetry" &&
+ cat <<\EOF >lines.txt &&
+ line 5
+ line 6
+ line 7
+line 1
+line 2
+line 3
+line 4
+EOF
+ test_config color.diff.oldMoved "magenta" &&
+ test_config color.diff.newMoved "cyan" &&
+ git diff HEAD --no-renames --color-moved| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
+ <BOLD>index 734156d..eb89ead 100644<RESET>
+ <BOLD>--- a/lines.txt<RESET>
+ <BOLD>+++ b/lines.txt<RESET>
+ <CYAN>@@ -1,7 +1,7 @@<RESET>
+ <GREEN>+<RESET> <GREEN>line 5<RESET>
+ <GREEN>+<RESET> <GREEN>line 6<RESET>
+ <GREEN>+<RESET> <GREEN>line 7<RESET>
+ line 1<RESET>
+ line 2<RESET>
+ line 3<RESET>
+ line 4<RESET>
+ <RED>-line 5<RESET>
+ <RED>-line 6<RESET>
+ <RED>-line 7<RESET>
+ EOF
+ test_cmp expected actual &&
+
+ git diff HEAD --no-renames -w --color-moved| test_decode_color >actual &&
+ cat <<-\EOF >expected &&
+ <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
+ <BOLD>index 734156d..eb89ead 100644<RESET>
+ <BOLD>--- a/lines.txt<RESET>
+ <BOLD>+++ b/lines.txt<RESET>
+ <CYAN>@@ -1,7 +1,7 @@<RESET>
+ <CYAN>+<RESET> <CYAN>line 5<RESET>
+ <CYAN>+<RESET> <CYAN>line 6<RESET>
+ <CYAN>+<RESET> <CYAN>line 7<RESET>
+ line 1<RESET>
+ line 2<RESET>
+ line 3<RESET>
+ line 4<RESET>
+ <MAGENTA>-line 5<RESET>
+ <MAGENTA>-line 6<RESET>
+ <MAGENTA>-line 7<RESET>
+ EOF
+ test_cmp expected actual
+'
+
+test_expect_success 'move detection with submodules' '
+ test_create_repo bananas &&
+ echo ripe >bananas/recipe &&
+ git -C bananas add recipe &&
+ test_commit fruit &&
+ test_commit -C bananas recipe &&
+ git submodule add ./bananas &&
+ git add bananas &&
+ git commit -a -m "bananas are like a heavy library?" &&
+ echo foul >bananas/recipe &&
+ echo ripe >fruit.t &&
+
+ git diff --submodule=diff --color-moved >actual &&
+
+ # no move detection as the moved line is across repository boundaries.
+ test_decode_color <actual >decoded_actual &&
+ ! grep BGREEN decoded_actual &&
+ ! grep BRED decoded_actual &&
+
+ # nor did we mess with it another way
+ git diff --submodule=diff | test_decode_color >expect &&
+ test_cmp expect decoded_actual
+'
+
test_done
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 13:35:14 +0000