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-rwxr-xr-xt/t6004-rev-list-path-optim.sh99
1 files changed, 99 insertions, 0 deletions
diff --git a/t/t6004-rev-list-path-optim.sh b/t/t6004-rev-list-path-optim.sh
new file mode 100755
index 0000000..cd4f420
--- /dev/null
+++ b/t/t6004-rev-list-path-optim.sh
@@ -0,0 +1,99 @@
+#!/bin/sh
+
+test_description='git rev-list trivial path optimization test
+
+ d/z1
+ b0 b1
+ o------------------------*----o main
+ / /
+ o---------o----o----o----o side
+ a0 c0 c1 a1 c2
+ d/f0 d/f1
+ d/z0
+
+'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success setup '
+ echo Hello >a &&
+ mkdir d &&
+ echo World >d/f &&
+ echo World >d/z &&
+ git add a d &&
+ test_tick &&
+ git commit -m "Initial commit" &&
+ git rev-parse --verify HEAD &&
+ git tag initial
+'
+
+test_expect_success path-optimization '
+ test_tick &&
+ commit=$(echo "Unchanged tree" | git commit-tree "HEAD^{tree}" -p HEAD) &&
+ test $(git rev-list $commit | wc -l) = 2 &&
+ test $(git rev-list $commit -- . | wc -l) = 1
+'
+
+test_expect_success 'further setup' '
+ git checkout -b side &&
+ echo Irrelevant >c &&
+ echo Irrelevant >d/f &&
+ git add c d/f &&
+ test_tick &&
+ git commit -m "Side makes an irrelevant commit" &&
+ git tag side_c0 &&
+ echo "More Irrelevancy" >c &&
+ git add c &&
+ test_tick &&
+ git commit -m "Side makes another irrelevant commit" &&
+ echo Bye >a &&
+ git add a &&
+ test_tick &&
+ git commit -m "Side touches a" &&
+ git tag side_a1 &&
+ echo "Yet more Irrelevancy" >c &&
+ git add c &&
+ test_tick &&
+ git commit -m "Side makes yet another irrelevant commit" &&
+ git checkout main &&
+ echo Another >b &&
+ echo Munged >d/z &&
+ git add b d/z &&
+ test_tick &&
+ git commit -m "Main touches b" &&
+ git tag main_b0 &&
+ git merge side &&
+ echo Touched >b &&
+ git add b &&
+ test_tick &&
+ git commit -m "Main touches b again"
+'
+
+test_expect_success 'path optimization 2' '
+ git rev-parse side_a1 initial >expected &&
+ git rev-list HEAD -- a >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'pathspec with leading path' '
+ git rev-parse main^ main_b0 side_c0 initial >expected &&
+ git rev-list HEAD -- d >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'pathspec with glob (1)' '
+ git rev-parse main^ main_b0 side_c0 initial >expected &&
+ git rev-list HEAD -- "d/*" >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success 'pathspec with glob (2)' '
+ git rev-parse side_c0 initial >expected &&
+ git rev-list HEAD -- "d/[a-m]*" >actual &&
+ test_cmp expected actual
+'
+
+test_done