Currently, t4013 is the only selftest that exercises the --dirstat machinery,
but it only does a superficial verification of --dirstat's output.
This patch adds a new selftest - t4046-diff-dirstat.sh - which prepares a
commit containing:
- unchanged files, changed files and files with rearranged lines
- copied files, moved files, and unmoved files
It then verifies the correct dirstat output for that commit in the following
dirstat modes:
- --dirstat
- --dirstat=0
- --cumulative
- --dirstat-by-file
- (plus combinations of the above)
Each of the above tests are also run with:
- no rename detection
- rename detection (-M)
- expensive copy detection (-C -C)
Signed-off-by: Johan Herland <johan@xxxxxxxxxxx>
---
t/t4046-diff-dirstat.sh | 562 +++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 562 insertions(+), 0 deletions(-)
create mode 100755 t/t4046-diff-dirstat.sh
diff --git a/t/t4046-diff-dirstat.sh b/t/t4046-diff-dirstat.sh
new file mode 100755
index 0000000..1690468
--- /dev/null
+++ b/t/t4046-diff-dirstat.sh
@@ -0,0 +1,562 @@
+#!/bin/sh
+
+test_description='diff --dirstat tests'
+. ./test-lib.sh
+
+# set up two commits where the second commit has these files
+# (10 lines in each file):
+#
+# unchanged/text (unchanged from 1st commit)
+# changed/text (changed 1st line)
+# rearranged/text (swapped 1st and 2nd line)
+# dst/copy/unchanged/text (copied from src/copy/unchanged/text, unchanged)
+# dst/copy/changed/text (copied from src/copy/changed/text, changed)
+# dst/copy/rearranged/text (copied from src/copy/rearranged/text, rearranged)
+# dst/move/unchanged/text (moved from src/move/unchanged/text, unchanged)
+# dst/move/changed/text (moved from src/move/changed/text, changed)
+# dst/move/rearranged/text (moved from src/move/rearranged/text, rearranged)
+
+test_expect_success 'setup' '
+ mkdir unchanged &&
+ mkdir changed &&
+ mkdir rearranged &&
+ mkdir src &&
+ mkdir src/copy &&
+ mkdir src/copy/unchanged &&
+ mkdir src/copy/changed &&
+ mkdir src/copy/rearranged &&
+ mkdir src/move &&
+ mkdir src/move/unchanged &&
+ mkdir src/move/changed &&
+ mkdir src/move/rearranged &&
+ cat <<EOF >unchanged/text &&
+unchanged line #0
+unchanged line #1
+unchanged line #2
+unchanged line #3
+unchanged line #4
+unchanged line #5
+unchanged line #6
+unchanged line #7
+unchanged line #8
+unchanged line #9
+EOF
+ cat <<EOF >changed/text &&
+changed line #0
+changed line #1
+changed line #2
+changed line #3
+changed line #4
+changed line #5
+changed line #6
+changed line #7
+changed line #8
+changed line #9
+EOF
+ cat <<EOF >rearranged/text &&
+rearranged line #0
+rearranged line #1
+rearranged line #2
+rearranged line #3
+rearranged line #4
+rearranged line #5
+rearranged line #6
+rearranged line #7
+rearranged line #8
+rearranged line #9
+EOF
+ cat <<EOF >src/copy/unchanged/text &&
+copy unchanged line #0
+copy unchanged line #1
+copy unchanged line #2
+copy unchanged line #3
+copy unchanged line #4
+copy unchanged line #5
+copy unchanged line #6
+copy unchanged line #7
+copy unchanged line #8
+copy unchanged line #9
+EOF
+ cat <<EOF >src/copy/changed/text &&
+copy changed line #0
+copy changed line #1
+copy changed line #2
+copy changed line #3
+copy changed line #4
+copy changed line #5
+copy changed line #6
+copy changed line #7
+copy changed line #8
+copy changed line #9
+EOF
+ cat <<EOF >src/copy/rearranged/text &&
+copy rearranged line #0
+copy rearranged line #1
+copy rearranged line #2
+copy rearranged line #3
+copy rearranged line #4
+copy rearranged line #5
+copy rearranged line #6
+copy rearranged line #7
+copy rearranged line #8
+copy rearranged line #9
+EOF
+ cat <<EOF >src/move/unchanged/text &&
+move unchanged line #0
+move unchanged line #1
+move unchanged line #2
+move unchanged line #3
+move unchanged line #4
+move unchanged line #5
+move unchanged line #6
+move unchanged line #7
+move unchanged line #8
+move unchanged line #9
+EOF
+ cat <<EOF >src/move/changed/text &&
+move changed line #0
+move changed line #1
+move changed line #2
+move changed line #3
+move changed line #4
+move changed line #5
+move changed line #6
+move changed line #7
+move changed line #8
+move changed line #9
+EOF
+ cat <<EOF >src/move/rearranged/text &&
+move rearranged line #0
+move rearranged line #1
+move rearranged line #2
+move rearranged line #3
+move rearranged line #4
+move rearranged line #5
+move rearranged line #6
+move rearranged line #7
+move rearranged line #8
+move rearranged line #9
+EOF
+ git add . &&
+ git commit -m "initial" &&
+ mkdir dst &&
+ mkdir dst/copy &&
+ mkdir dst/copy/unchanged &&
+ mkdir dst/copy/changed &&
+ mkdir dst/copy/rearranged &&
+ mkdir dst/move &&
+ mkdir dst/move/unchanged &&
+ mkdir dst/move/changed &&
+ mkdir dst/move/rearranged &&
+ cat <<EOF >changed/text &&
+CHANGED XXXXXXX line #0
+changed line #1
+changed line #2
+changed line #3
+changed line #4
+changed line #5
+changed line #6
+changed line #7
+changed line #8
+changed line #9
+EOF
+ cat <<EOF >rearranged/text &&
+rearranged line #1
+rearranged line #0
+rearranged line #2
+rearranged line #3
+rearranged line #4
+rearranged line #5
+rearranged line #6
+rearranged line #7
+rearranged line #8
+rearranged line #9
+EOF
+ cat <<EOF >dst/copy/unchanged/text &&
+copy unchanged line #0
+copy unchanged line #1
+copy unchanged line #2
+copy unchanged line #3
+copy unchanged line #4
+copy unchanged line #5
+copy unchanged line #6
+copy unchanged line #7
+copy unchanged line #8
+copy unchanged line #9
+EOF
+ cat <<EOF >dst/copy/changed/text &&
+copy XXXCHANGED line #0
+copy changed line #1
+copy changed line #2
+copy changed line #3
+copy changed line #4
+copy changed line #5
+copy changed line #6
+copy changed line #7
+copy changed line #8
+copy changed line #9
+EOF
+ cat <<EOF >dst/copy/rearranged/text &&
+copy rearranged line #1
+copy rearranged line #0
+copy rearranged line #2
+copy rearranged line #3
+copy rearranged line #4
+copy rearranged line #5
+copy rearranged line #6
+copy rearranged line #7
+copy rearranged line #8
+copy rearranged line #9
+EOF
+ cat <<EOF >dst/move/unchanged/text &&
+move unchanged line #0
+move unchanged line #1
+move unchanged line #2
+move unchanged line #3
+move unchanged line #4
+move unchanged line #5
+move unchanged line #6
+move unchanged line #7
+move unchanged line #8
+move unchanged line #9
+EOF
+ cat <<EOF >dst/move/changed/text &&
+move XXXCHANGED line #0
+move changed line #1
+move changed line #2
+move changed line #3
+move changed line #4
+move changed line #5
+move changed line #6
+move changed line #7
+move changed line #8
+move changed line #9
+EOF
+ cat <<EOF >dst/move/rearranged/text &&
+move rearranged line #1
+move rearranged line #0
+move rearranged line #2
+move rearranged line #3
+move rearranged line #4
+move rearranged line #5
+move rearranged line #6
+move rearranged line #7
+move rearranged line #8
+move rearranged line #9
+EOF
+ git add . &&
+ git rm -r src/move/unchanged &&
+ git rm -r src/move/changed &&
+ git rm -r src/move/rearranged &&
+ git commit -m "changes"
+'
+
+cat <<EOF >expect_diff_stat
+ changed/text | 2 +-
+ dst/copy/changed/text | 10 ++++++++++
+ dst/copy/rearranged/text | 10 ++++++++++
+ dst/copy/unchanged/text | 10 ++++++++++
+ dst/move/changed/text | 10 ++++++++++
+ dst/move/rearranged/text | 10 ++++++++++
+ dst/move/unchanged/text | 10 ++++++++++
+ rearranged/text | 2 +-
+ src/move/changed/text | 10 ----------
+ src/move/rearranged/text | 10 ----------
+ src/move/unchanged/text | 10 ----------
+ 11 files changed, 62 insertions(+), 32 deletions(-)
+EOF
+
+cat <<EOF >expect_diff_stat_M
+ changed/text | 2 +-
+ dst/copy/changed/text | 10 ++++++++++
+ dst/copy/rearranged/text | 10 ++++++++++
+ dst/copy/unchanged/text | 10 ++++++++++
+ {src => dst}/move/changed/text | 2 +-
+ {src => dst}/move/rearranged/text | 2 +-
+ {src => dst}/move/unchanged/text | 0
+ rearranged/text | 2 +-
+ 8 files changed, 34 insertions(+), 4 deletions(-)
+EOF
+
+cat <<EOF >expect_diff_stat_CC
+ changed/text | 2 +-
+ {src => dst}/copy/changed/text | 2 +-
+ {src => dst}/copy/rearranged/text | 2 +-
+ {src => dst}/copy/unchanged/text | 0
+ {src => dst}/move/changed/text | 2 +-
+ {src => dst}/move/rearranged/text | 2 +-
+ {src => dst}/move/unchanged/text | 0
+ rearranged/text | 2 +-
+ 8 files changed, 6 insertions(+), 6 deletions(-)
+EOF
+
+test_expect_success 'sanity check setup (--stat)' '
+ git diff --stat HEAD^..HEAD >actual_diff_stat &&
+ test_cmp expect_diff_stat actual_diff_stat &&
+ git diff --stat -M HEAD^..HEAD >actual_diff_stat_M &&
+ test_cmp expect_diff_stat_M actual_diff_stat_M &&
+ git diff --stat -C -C HEAD^..HEAD >actual_diff_stat_CC &&
+ test_cmp expect_diff_stat_CC actual_diff_stat_CC
+'
+
+# changed/text and rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+EOF
+
+# rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 5.8% dst/move/changed/
+EOF
+
+# rearranged/text falls below default 3% threshold
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 32.6% dst/move/changed/
+EOF
+
+test_expect_success 'vanilla --dirstat' '
+ git diff --dirstat HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+# rearranged/text falls below 0% threshold (1 / (240 * 9 + 48 + 1) ~= 0.045 %)
+cat <<EOF >expect_diff_dirstat
+ 2.1% changed/
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 5.8% dst/move/changed/
+ 0.1% dst/move/rearranged/
+ 0.1% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 0.6% dst/copy/rearranged/
+ 32.6% dst/move/changed/
+ 0.6% dst/move/rearranged/
+ 0.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=0' '
+ git diff --dirstat=0 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=0 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=0 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+# rearranged/text falls below 0% threshold (1 / (240 * 9 + 48 + 1) ~= 0.045 %)
+cat <<EOF >expect_diff_dirstat
+ 2.1% changed/
+ 10.8% dst/copy/changed/
+ 10.8% dst/copy/rearranged/
+ 10.8% dst/copy/unchanged/
+ 32.5% dst/copy/
+ 10.8% dst/move/changed/
+ 10.8% dst/move/rearranged/
+ 10.8% dst/move/unchanged/
+ 32.5% dst/move/
+ 65.1% dst/
+ 10.8% src/move/changed/
+ 10.8% src/move/rearranged/
+ 10.8% src/move/unchanged/
+ 32.5% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 5.8% changed/
+ 29.3% dst/copy/changed/
+ 29.3% dst/copy/rearranged/
+ 29.3% dst/copy/unchanged/
+ 88.0% dst/copy/
+ 5.8% dst/move/changed/
+ 0.1% dst/move/rearranged/
+ 5.9% dst/move/
+ 94.0% dst/
+ 0.1% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 32.6% changed/
+ 32.6% dst/copy/changed/
+ 0.6% dst/copy/rearranged/
+ 33.3% dst/copy/
+ 32.6% dst/move/changed/
+ 0.6% dst/move/rearranged/
+ 33.3% dst/move/
+ 66.6% dst/
+ 0.6% rearranged/
+EOF
+
+test_expect_success '--dirstat=0 --cumulative' '
+ git diff --dirstat=0 --cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat=0 --cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat=0 --cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 9.0% changed/
+ 9.0% dst/copy/changed/
+ 9.0% dst/copy/rearranged/
+ 9.0% dst/copy/unchanged/
+ 9.0% dst/move/changed/
+ 9.0% dst/move/rearranged/
+ 9.0% dst/move/unchanged/
+ 9.0% rearranged/
+ 9.0% src/move/changed/
+ 9.0% src/move/rearranged/
+ 9.0% src/move/unchanged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file' '
+ git diff --dirstat-by-file HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 27.2% dst/copy/
+ 27.2% dst/move/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file=10' '
+ git diff --dirstat-by-file=10 HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file=10 -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file=10 -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+cat <<EOF >expect_diff_dirstat
+ 9.0% changed/
+ 9.0% dst/copy/changed/
+ 9.0% dst/copy/rearranged/
+ 9.0% dst/copy/unchanged/
+ 27.2% dst/copy/
+ 9.0% dst/move/changed/
+ 9.0% dst/move/rearranged/
+ 9.0% dst/move/unchanged/
+ 27.2% dst/move/
+ 54.5% dst/
+ 9.0% rearranged/
+ 9.0% src/move/changed/
+ 9.0% src/move/rearranged/
+ 9.0% src/move/unchanged/
+ 27.2% src/move/
+EOF
+
+cat <<EOF >expect_diff_dirstat_M
+ 14.2% changed/
+ 14.2% dst/copy/changed/
+ 14.2% dst/copy/rearranged/
+ 14.2% dst/copy/unchanged/
+ 42.8% dst/copy/
+ 14.2% dst/move/changed/
+ 14.2% dst/move/rearranged/
+ 28.5% dst/move/
+ 71.4% dst/
+ 14.2% rearranged/
+EOF
+
+cat <<EOF >expect_diff_dirstat_CC
+ 16.6% changed/
+ 16.6% dst/copy/changed/
+ 16.6% dst/copy/rearranged/
+ 33.3% dst/copy/
+ 16.6% dst/move/changed/
+ 16.6% dst/move/rearranged/
+ 33.3% dst/move/
+ 66.6% dst/
+ 16.6% rearranged/
+EOF
+
+test_expect_success '--dirstat-by-file --cumulative' '
+ git diff --dirstat-by-file --cumulative HEAD^..HEAD >actual_diff_dirstat &&
+ test_cmp expect_diff_dirstat actual_diff_dirstat &&
+ git diff --dirstat-by-file --cumulative -M HEAD^..HEAD >actual_diff_dirstat_M &&
+ test_cmp expect_diff_dirstat_M actual_diff_dirstat_M &&
+ git diff --dirstat-by-file --cumulative -C -C HEAD^..HEAD >actual_diff_dirstat_CC &&
+ test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC
+'
+
+test_done
--
1.7.5.rc1.3.g4d7b
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