diff --color-moved: add perf tests
Add some tests so we can monitor changes to the performance of the move detection code. The tests record the performance --color-moved and --color-moved-ws=allow-indentation-change for a large diff and a sequence of smaller diffs. The range of commits used for the large diff can be customized by exporting TEST_REV_A and TEST_REV_B when running the test. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Phillip Wood committed
Dec 9, 2021 at 10:29 UTC
f73613ac33aad6f08aa1bc07e596202f19e760d1
1 file changed
+57
t/perf/p4002-diff-color-moved.sh
new
+57
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+#!/bin/sh
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+
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+test_description='Tests diff --color-moved performance'
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+. ./perf-lib.sh
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+
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+test_perf_default_repo
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+
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+# The endpoints of the diff can be customized by setting TEST_REV_A
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+# and TEST_REV_B in the environment when running this test.
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+
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+rev="${TEST_REV_A:-v2.28.0}"
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+if ! rev_a="$(git rev-parse --quiet --verify "$rev")"
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+then
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+ skip_all="skipping because '$rev' was not found. \
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+ Use TEST_REV_A and TEST_REV_B to set the revs to use"
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+ test_done
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+fi
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+rev="${TEST_REV_B:-v2.29.0}"
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+if ! rev_b="$(git rev-parse --quiet --verify "$rev")"
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+then
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+ skip_all="skipping because '$rev' was not found. \
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+ Use TEST_REV_A and TEST_REV_B to set the revs to use"
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+ test_done
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+fi
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+
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+GIT_PAGER_IN_USE=1
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+test_export GIT_PAGER_IN_USE rev_a rev_b
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+
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+test_perf 'diff --no-color-moved --no-color-moved-ws large change' '
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+ git diff --no-color-moved --no-color-moved-ws $rev_a $rev_b
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+'
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+
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+test_perf 'diff --color-moved --no-color-moved-ws large change' '
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+ git diff --color-moved=zebra --no-color-moved-ws $rev_a $rev_b
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+'
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+
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+test_perf 'diff --color-moved-ws=allow-indentation-change large change' '
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+ git diff --color-moved=zebra --color-moved-ws=allow-indentation-change \
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+ $rev_a $rev_b
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+'
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+
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+test_perf 'log --no-color-moved --no-color-moved-ws' '
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+ git log --no-color-moved --no-color-moved-ws --no-merges --patch \
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+ -n1000 $rev_b
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+'
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+
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+test_perf 'log --color-moved --no-color-moved-ws' '
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+ git log --color-moved=zebra --no-color-moved-ws --no-merges --patch \
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+ -n1000 $rev_b
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+'
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+
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+test_perf 'log --color-moved-ws=allow-indentation-change' '
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+ git log --color-moved=zebra --color-moved-ws=allow-indentation-change \
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+ --no-merges --patch -n1000 $rev_b
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+'
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+
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+test_done