diff options
Diffstat (limited to 't/t4015-diff-whitespace.sh')
| -rwxr-xr-x | t/t4015-diff-whitespace.sh | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh index 289806d0c7..29704ae14e 100755 --- a/t/t4015-diff-whitespace.sh +++ b/t/t4015-diff-whitespace.sh @@ -972,4 +972,265 @@ 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 --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 '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 |