From: Thomas Rast <tr@xxxxxxxxxxxxx> These are essentially lifted from https://github.com/trast/tbdiff, with light touch-ups to account for the new command name. Apart from renaming `tbdiff` to `branch-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@xxxxxx> --- t/.gitattributes | 1 + t/t7910-branch-diff.sh | 144 ++++++++++ t/t7910/history.export | 604 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 749 insertions(+) create mode 100755 t/t7910-branch-diff.sh create mode 100644 t/t7910/history.export diff --git a/t/.gitattributes b/t/.gitattributes index 3bd959ae523..af15d5aeedd 100644 --- a/t/.gitattributes +++ b/t/.gitattributes @@ -18,5 +18,6 @@ t[0-9][0-9][0-9][0-9]/* -whitespace /t5515/* eol=lf /t556x_common eol=lf /t7500/* eol=lf +/t7910/* eol=lf /t8005/*.txt eol=lf /t9*/*.dump eol=lf diff --git a/t/t7910-branch-diff.sh b/t/t7910-branch-diff.sh new file mode 100755 index 00000000000..a7fece88045 --- /dev/null +++ b/t/t7910-branch-diff.sh @@ -0,0 +1,144 @@ +#!/bin/sh + +test_description='branch-diff tests' + +. ./test-lib.sh + +# Note that because of git-branch-diff's heuristics, test_commit does more +# harm than good. We need some real history. + +test_expect_success 'setup' ' + git fast-import < "$TEST_DIRECTORY"/t7910/history.export +' + +test_expect_success 'simple A..B A..C (unmodified)' ' + git branch-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 branch-diff --no-color topic...unmodified >actual && + # same "expected" as above + test_cmp expected actual +' + +test_expect_success 'simple A B C (unmodified)' ' + git branch-diff --no-color master topic unmodified >actual && + # same "expected" as above + test_cmp expected actual +' + +test_expect_success 'trivial reordering' ' + git branch-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 branch-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 branch-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 branch-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 branch-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 branch-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 branch-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 diff --git a/t/t7910/history.export b/t/t7910/history.export new file mode 100644 index 00000000000..b8ffff0940d --- /dev/null +++ b/t/t7910/history.export @@ -0,0 +1,604 @@ +blob +mark :1 +data 51 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 + +reset refs/heads/removed +commit refs/heads/removed +mark :2 +author Thomas Rast <trast@xxxxxxxxxxx> 1374424921 +0200 +committer Thomas Rast <trast@xxxxxxxxxxx> 1374484724 +0200 +data 8 +initial +M 100644 :1 file + +blob +mark :3 +data 51 +1 +2 +3 +4 +A +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 + +commit refs/heads/topic +mark :4 +author Thomas Rast <trast@xxxxxxxxxxx> 1374485014 +0200 +committer Thomas Rast 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