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git/t/t3206-range-diff.sh
Thomas Gummerer 499352c2ad range-diff: add headers to the outer hunk header 
Add the section headers/hunk headers we introduced in the previous
commits to the outer diff's hunk headers.  This makes it easier to
understand which change we are actually looking at.  For example an
outer hunk header might now look like:

    @@  Documentation/config/interactive.txt

while previously it would have only been

    @@

which doesn't give a lot of context for the change that follows.

For completeness also add section headers for the commit metadata and
the commit message, although they are arguably less important.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-11 14:29:27 -07:00

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#!/bin/sh
test_description='range-diff tests'
. ./test-lib.sh
# Note that because of the range-diff's heuristics, test_commit does more
# harm than good. We need some real history.
test_expect_success 'setup' '
git fast-import < "$TEST_DIRECTORY"/t3206/history.export
'
test_expect_success 'simple A..B A..C (unmodified)' '
git range-diff --no-color master..topic master..unmodified \
>actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: 35b9b25 s/5/A/
2: fccce22 = 2: de345ab s/4/A/
3: 147e64e = 3: 9af6654 s/11/B/
4: a63e992 = 4: 2901f77 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'simple B...C (unmodified)' '
git range-diff --no-color topic...unmodified >actual &&
# same "expected" as above
test_cmp expected actual
'
test_expect_success 'simple A B C (unmodified)' '
git range-diff --no-color master topic unmodified >actual &&
# same "expected" as above
test_cmp expected actual
'
test_expect_success 'trivial reordering' '
git range-diff --no-color master topic reordered >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: aca177a s/5/A/
3: 147e64e = 2: 14ad629 s/11/B/
4: a63e992 = 3: ee58208 s/12/B/
2: fccce22 = 4: 307b27a s/4/A/
EOF
test_cmp expected actual
'
test_expect_success 'removed a commit' '
git range-diff --no-color master topic removed >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: 7657159 s/5/A/
2: fccce22 < -: ------- s/4/A/
3: 147e64e = 2: 43d84d3 s/11/B/
4: a63e992 = 3: a740396 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'added a commit' '
git range-diff --no-color master topic added >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: 2716022 s/5/A/
2: fccce22 = 2: b62accd s/4/A/
-: ------- > 3: df46cfa s/6/A/
3: 147e64e = 4: 3e64548 s/11/B/
4: a63e992 = 5: 12b4063 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'new base, A B C' '
git range-diff --no-color master topic rebased >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: cc9c443 s/5/A/
2: fccce22 = 2: c5d9641 s/4/A/
3: 147e64e = 3: 28cc2b6 s/11/B/
4: a63e992 = 4: 5628ab7 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'new base, B...C' '
# this syntax includes the commits from master!
git range-diff --no-color topic...rebased >actual &&
cat >expected <<-EOF &&
-: ------- > 1: a31b12e unrelated
1: 4de457d = 2: cc9c443 s/5/A/
2: fccce22 = 3: c5d9641 s/4/A/
3: 147e64e = 4: 28cc2b6 s/11/B/
4: a63e992 = 5: 5628ab7 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'changed commit' '
git range-diff --no-color topic...changed >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: a4b3333 s/5/A/
2: fccce22 = 2: f51d370 s/4/A/
3: 147e64e ! 3: 0559556 s/11/B/
@@ file: A
9
10
-11
-+B
++BB
12
13
14
4: a63e992 ! 4: d966c5c s/12/B/
@@ file
@@ file: A
9
10
- B
+ BB
-12
+B
13
EOF
test_cmp expected actual
'
test_expect_success 'changed commit with --no-patch diff option' '
git range-diff --no-color --no-patch topic...changed >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: a4b3333 s/5/A/
2: fccce22 = 2: f51d370 s/4/A/
3: 147e64e ! 3: 0559556 s/11/B/
4: a63e992 ! 4: d966c5c s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'changed commit with --stat diff option' '
git range-diff --no-color --stat topic...changed >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: a4b3333 s/5/A/
a => b | 0
1 file changed, 0 insertions(+), 0 deletions(-)
2: fccce22 = 2: f51d370 s/4/A/
a => b | 0
1 file changed, 0 insertions(+), 0 deletions(-)
3: 147e64e ! 3: 0559556 s/11/B/
a => b | 0
1 file changed, 0 insertions(+), 0 deletions(-)
4: a63e992 ! 4: d966c5c s/12/B/
a => b | 0
1 file changed, 0 insertions(+), 0 deletions(-)
EOF
test_cmp expected actual
'
test_expect_success 'changed commit with sm config' '
git range-diff --no-color --submodule=log topic...changed >actual &&
cat >expected <<-EOF &&
1: 4de457d = 1: a4b3333 s/5/A/
2: fccce22 = 2: f51d370 s/4/A/
3: 147e64e ! 3: 0559556 s/11/B/
@@ file: A
9
10
-11
-+B
++BB
12
13
14
4: a63e992 ! 4: d966c5c s/12/B/
@@ file
@@ file: A
9
10
- B
+ BB
-12
+B
13
EOF
test_cmp expected actual
'
test_expect_success 'renamed file' '
git range-diff --no-color --submodule=log topic...renamed-file >actual &&
sed s/Z/\ /g >expected <<-EOF &&
1: 4de457d = 1: f258d75 s/5/A/
2: fccce22 ! 2: 017b62d s/4/A/
@@ Metadata
ZAuthor: Thomas Rast <trast@inf.ethz.ch>
Z
Z ## Commit message ##
- s/4/A/
+ s/4/A/ + rename file
Z
- ## file ##
+ ## file => renamed-file ##
Z@@
Z 1
Z 2
3: 147e64e ! 3: 3ce7af6 s/11/B/
@@ Metadata
Z ## Commit message ##
Z s/11/B/
Z
- ## file ##
-@@ file: A
+ ## renamed-file ##
+@@ renamed-file: A
Z 8
Z 9
Z 10
4: a63e992 ! 4: 1e6226b s/12/B/
@@ Metadata
Z ## Commit message ##
Z s/12/B/
Z
- ## file ##
-@@ file: A
+ ## renamed-file ##
+@@ renamed-file: A
Z 9
Z 10
Z B
EOF
test_cmp expected actual
'
test_expect_success 'file added and later removed' '
git range-diff --no-color --submodule=log topic...added-removed >actual &&
sed s/Z/\ /g >expected <<-EOF &&
1: 4de457d = 1: 096b1ba s/5/A/
2: fccce22 ! 2: d92e698 s/4/A/
@@ Metadata
ZAuthor: Thomas Rast <trast@inf.ethz.ch>
Z
Z ## Commit message ##
- s/4/A/
+ s/4/A/ + new-file
Z
Z ## file ##
Z@@
@@ file
Z A
Z 6
Z 7
+
+ ## new-file (new) ##
3: 147e64e ! 3: 9a1db4d s/11/B/
@@ Metadata
ZAuthor: Thomas Rast <trast@inf.ethz.ch>
Z
Z ## Commit message ##
- s/11/B/
+ s/11/B/ + remove file
Z
Z ## file ##
Z@@ file: A
@@ file: A
Z 12
Z 13
Z 14
+
+ ## new-file (deleted) ##
4: a63e992 = 4: fea3b5c s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'no commits on one side' '
git commit --amend -m "new message" &&
git range-diff master HEAD@{1} HEAD
'
test_expect_success 'changed message' '
git range-diff --no-color topic...changed-message >actual &&
sed s/Z/\ /g >expected <<-EOF &&
1: 4de457d = 1: f686024 s/5/A/
2: fccce22 ! 2: 4ab067d s/4/A/
@@ Metadata
Z ## Commit message ##
Z s/4/A/
Z
+ Also a silly comment here!
+
Z ## file ##
Z@@
Z 1
3: 147e64e = 3: b9cb956 s/11/B/
4: a63e992 = 4: 8add5f1 s/12/B/
EOF
test_cmp expected actual
'
test_expect_success 'dual-coloring' '
sed -e "s|^:||" >expect <<-\EOF &&
:<YELLOW>1: a4b3333 = 1: f686024 s/5/A/<RESET>
:<RED>2: f51d370 <RESET><YELLOW>!<RESET><GREEN> 2: 4ab067d<RESET><YELLOW> s/4/A/<RESET>
: <REVERSE><CYAN>@@<RESET> <RESET>Metadata<RESET>
: ## Commit message ##<RESET>
: s/4/A/<RESET>
: <RESET>
: <REVERSE><GREEN>+<RESET><BOLD> Also a silly comment here!<RESET>
: <REVERSE><GREEN>+<RESET>
: ## file ##<RESET>
: <CYAN> @@<RESET>
: 1<RESET>
:<RED>3: 0559556 <RESET><YELLOW>!<RESET><GREEN> 3: b9cb956<RESET><YELLOW> s/11/B/<RESET>
: <REVERSE><CYAN>@@<RESET> <RESET>file: A<RESET>
: 9<RESET>
: 10<RESET>
: <RED> -11<RESET>
: <REVERSE><RED>-<RESET><FAINT;GREEN>+BB<RESET>
: <REVERSE><GREEN>+<RESET><BOLD;GREEN>+B<RESET>
: 12<RESET>
: 13<RESET>
: 14<RESET>
:<RED>4: d966c5c <RESET><YELLOW>!<RESET><GREEN> 4: 8add5f1<RESET><YELLOW> s/12/B/<RESET>
: <REVERSE><CYAN>@@<RESET> <RESET>file<RESET>
: <CYAN> @@ file: A<RESET>
: 9<RESET>
: 10<RESET>
: <REVERSE><RED>-<RESET><FAINT> BB<RESET>
: <REVERSE><GREEN>+<RESET><BOLD> B<RESET>
: <RED> -12<RESET>
: <GREEN> +B<RESET>
: 13<RESET>
EOF
git range-diff changed...changed-message --color --dual-color >actual.raw &&
test_decode_color >actual <actual.raw &&
test_cmp expect actual
'
for prev in topic master..topic
do
test_expect_success "format-patch --range-diff=$prev" '
git format-patch --cover-letter --range-diff=$prev \
master..unmodified >actual &&
test_when_finished "rm 000?-*" &&
test_line_count = 5 actual &&
test_i18ngrep "^Range-diff:$" 0000-* &&
grep "= 1: .* s/5/A" 0000-* &&
grep "= 2: .* s/4/A" 0000-* &&
grep "= 3: .* s/11/B" 0000-* &&
grep "= 4: .* s/12/B" 0000-*
'
done
test_expect_success 'format-patch --range-diff as commentary' '
git format-patch --range-diff=HEAD~1 HEAD~1 >actual &&
test_when_finished "rm 0001-*" &&
test_line_count = 1 actual &&
test_i18ngrep "^Range-diff:$" 0001-* &&
grep "> 1: .* new message" 0001-*
'
test_done
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