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t4018: an infrastructure to test hunk headers
Add an infrastructure that simplifies adding new tests of the hunk
header regular expressions.
To add new tests, a file with the syntax to test can be dropped in the
directory t4018. The README file explains how a test file must contain;
the README itself tests the default behavior.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
authored by
Johannes Sixt
and committed by
Junio C Hamano
bfa7d014
abf8f986
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t/t4018-diff-funcname.sh
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t/t4018-diff-funcname.sh
···
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grep "^@@.*@@ $1" diff
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}
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for p in ada bibtex cpp csharp fortran html java matlab objc pascal perl php python ruby tex
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diffpatterns="
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ada
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bibtex
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cpp
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csharp
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fortran
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html
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java
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matlab
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objc
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pascal
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perl
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php
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python
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ruby
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tex
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"
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for p in $diffpatterns
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do
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test_expect_success "builtin $p pattern compiles" '
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echo "*.java diff=$p" >.gitattributes &&
···
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! grep error msg
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'
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done
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test_expect_success 'default behaviour' '
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rm -f .gitattributes &&
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test_expect_funcname "public class Beer\$"
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'
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test_expect_success 'set up .gitattributes declaring drivers to test' '
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cat >.gitattributes <<-\EOF
···
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test_config diff.java.xfuncname "^[ ]*((public|static).*)$" &&
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test_expect_funcname "public static void main("
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'
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test_expect_success 'setup hunk header tests' '
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for i in $diffpatterns
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do
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echo "$i-* diff=$i"
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done > .gitattributes &&
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# add all test files to the index
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(
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cd "$TEST_DIRECTORY"/t4018 &&
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git --git-dir="$TRASH_DIRECTORY/.git" add .
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) &&
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# place modified files in the worktree
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for i in $(git ls-files)
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do
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sed -e "s/ChangeMe/IWasChanged/" <"$TEST_DIRECTORY/t4018/$i" >"$i" || return 1
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done
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'
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# check each individual file
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for i in $(git ls-files)
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do
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if grep broken "$i" >/dev/null 2>&1
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then
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result=failure
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else
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result=success
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fi
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test_expect_$result "hunk header: $i" "
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test_when_finished 'cat actual' && # for debugging only
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git diff -U1 $i >actual &&
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grep '@@ .* @@.*RIGHT' actual
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"
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done
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test_done
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t/t4018/README
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t/t4018/README
···
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How to write RIGHT test cases
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=============================
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Insert the word "ChangeMe" (exactly this form) at a distance of
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at least two lines from the line that must appear in the hunk header.
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The text that must appear in the hunk header must contain the word
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"right", but in all upper-case, like in the title above.
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To mark a test case that highlights a malfunction, insert the word
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BROKEN in all lower-case somewhere in the file.
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This text is a bit twisted and out of order, but it is itself a
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test case for the default hunk header pattern. Know what you are doing
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if you change it.
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BTW, this tests that the head line goes to the hunk header, not the line
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of equal signs.