git/t/t3206-range-diff.sh
Thomas Rast 8884cf15fb range-diff: add tests
These are essentially lifted from https://github.com/trast/tbdiff, with
light touch-ups to account for the command now being named `git
range-diff`.

Apart from renaming `tbdiff` to `range-diff`, only one test case needed
to be adjusted: 11 - 'changed message'.

The underlying reason it had to be adjusted is that diff generation is
sometimes ambiguous. In this case, a comment line and an empty line are
added, but it is ambiguous whether they were added after the existing
empty line, or whether an empty line and the comment line are added
*before* the existing empty line. And apparently xdiff picks a different
option here than Python's difflib.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-13 10:44:51 -07:00

146 lines
3.4 KiB
Bash
Executable File

#!/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/
@@ -10,7 +10,7 @@
9
10
-11
-+B
++BB
12
13
14
4: a63e992 ! 4: d966c5c s/12/B/
@@ -8,7 +8,7 @@
@@
9
10
- B
+ BB
-12
+B
13
EOF
test_cmp expected actual
'
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/
@@ -2,6 +2,8 @@
Z
Z s/4/A/
Z
+ Also a silly comment here!
+
Zdiff --git a/file b/file
Z--- a/file
Z+++ b/file
3: 147e64e = 3: b9cb956 s/11/B/
4: a63e992 = 4: 8add5f1 s/12/B/
EOF
test_cmp expected actual
'
test_done