Signed-off-by: Brian Henderson <henderson.bj@xxxxxxxxx>
---
contrib/diff-highlight/t/t9400-diff-highlight.sh | 13 +++++++
contrib/diff-highlight/t/test-diff-highlight.sh | 43 ++++++++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/contrib/diff-highlight/t/t9400-diff-highlight.sh b/contrib/diff-highlight/t/t9400-diff-highlight.sh
index 8eff178..39707c6 100755
--- a/contrib/diff-highlight/t/t9400-diff-highlight.sh
+++ b/contrib/diff-highlight/t/t9400-diff-highlight.sh
@@ -59,4 +59,17 @@ test_expect_success 'diff-highlight does not highlight mismatched hunk size' '
# TODO add multi-byte test
+test_expect_success 'diff-highlight highlights the beginning of a line' '
+ dh_graph_test \
+ "aaa\nbbb\nccc\n" \
+ "aaa\n0bb\nccc\n" \
+ "aaa\nb0b\nccc\n" \
+"
+ aaa
+-${CW}b${CR}bb
++${CW}0${CR}bb
+ ccc
+"
+'
+
test_done
diff --git a/contrib/diff-highlight/t/test-diff-highlight.sh b/contrib/diff-highlight/t/test-diff-highlight.sh
index 38323e8..67f742c 100644
--- a/contrib/diff-highlight/t/test-diff-highlight.sh
+++ b/contrib/diff-highlight/t/test-diff-highlight.sh
@@ -64,6 +64,49 @@ dh_commit_test() {
test_cmp commit.exp commit.act
}
+dh_graph_test() {
+ a="$1" b="$2" c="$3"
+
+ {
+ printf "$a" >file
+ git add file
+ git commit -m"Add a file"
+
+ printf "$b" >file
+ git commit -am"Update a file"
+
+ git checkout -b branch
+ printf "$c" >file
+ git commit -am"Update a file on branch"
+
+ git checkout master
+ printf "$a" >file
+ git commit -am"Update a file again"
+
+ git checkout branch
+ printf "$b" >file
+ git commit -am"Update a file similar to master"
+
+ git merge master
+ git checkout master
+ git merge branch --no-ff
+ } >/dev/null 2>&1
+
+ git log -p --graph --no-merges >graph.raw
+
+ # git log --graph orders the commits different than git log so we hack it by
+ # using sed to remove the graph part. We know from other tests, that DIFF_HIGHLIGHT
+ # works without the graph, so there should be no diff when running it with
+ # and without.
+ <graph.raw sed -e 's"^\(*\|| \||/\)\+""' -e 's"^ ""' | "$DIFF_HIGHLIGHT" >graph.exp
+ <graph.raw "$DIFF_HIGHLIGHT" | sed -e 's"^\(*\|| \||/\)\+""' -e 's"^ ""' >graph.act &&
+
+ test -s graph.act &&
+ # ignore whitespace since we're using a hacky sed command to remove the graph
+ # parts.
+ git diff -b --no-index graph.exp graph.act
+}
+
test_chomp_eof() {
perl -pe 'chomp if eof'
}
--
2.9.0
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