git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH 7/7] t5551: make EXPENSIVE test cheaper

From
Jeff King <peff@peff.net>
Date
Mar 13, 2015, 04:57 UTC
Message-ID
<20150313045705.GA18807@peff.net>
In-Reply-To
<20150313044101.GA18476@peff.net>

We create 50,000 tags to check that we don't overflow the command-line of fetch-pack. But by using run_with_cmdline_limit, we can get the same effect with a much smaller number of tags. This makes the test fast enough that we can drop the EXPENSIVE prereq, which means people will actually run it.

It was not documented to do so, but this test was also the only test of a clone-over-http that requires multiple POSTs during the conversation. We can continue to test that by dropping http.postbuffer to its minimum size, and checking that we get two POSTs.

Signed-off-by: Jeff King <peff@peff.net>
---
This is still a slightly expensive test, but it's on par with what the
push test does, so hopefully it's OK. And it bothers me that we didn't
exercise the multiple-POST code at all in the test suite, as I assume
basically nobody runs the tests with "--long".

I don't think we can shrink it any more. We enforce a hard minimum of LARGE_PACKET_MAX on http.postbuffer, and that assumption runs through the code. Lots of things break if you try to circumvent it, and I didn't bother digging further.

 t/t5551-http-fetch-smart.sh | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/t/t5551-http-fetch-smart.sh b/t/t5551-http-fetch-smart.sh
index b970773..df47851 100755
--- a/t/t5551-http-fetch-smart.sh
+++ b/t/t5551-http-fetch-smart.sh
@@ -224,10 +224,10 @@ test_expect_success 'transfer.hiderefs works over smart-http' '
 	git -C hidden.git rev-parse --verify b
 '
 
-test_expect_success EXPENSIVE 'create 50,000 tags in the repo' '
+test_expect_success 'create 2,000 tags in the repo' '
 	(
 	cd "$HTTPD_DOCUMENT_ROOT_PATH/repo.git" &&
-	for i in `test_seq 50000`
+	for i in $(test_seq 2000)
 	do
 		echo "commit refs/heads/too-many-refs"
 		echo "mark :$i"
@@ -248,13 +248,22 @@ test_expect_success EXPENSIVE 'create 50,000 tags in the repo' '
 	)
 '
 
-test_expect_success EXPENSIVE 'clone the 50,000 tag repo to check OS command line overflow' '
-	git clone $HTTPD_URL/smart/repo.git too-many-refs &&
+test_expect_success CMDLINE_LIMIT \
+	'clone the 2,000 tag repo to check OS command line overflow' '
+	run_with_limited_cmdline git clone $HTTPD_URL/smart/repo.git too-many-refs &&
 	(
 		cd too-many-refs &&
-		test $(git for-each-ref refs/tags | wc -l) = 50000
+		git for-each-ref refs/tags >actual &&
+		test_line_count = 2000 actual
 	)
 '
 
+test_expect_success 'large fetch-pack requests can be split across POSTs' '
+	GIT_CURL_VERBOSE=1 git -c http.postbuffer=65536 \
+		clone --bare "$HTTPD_URL/smart/repo.git" split.git 2>err &&
+	grep "^> POST" err >posts &&
+	test_line_count = 2 posts
+'
+
 stop_httpd
 test_done
-- 
2.3.2.472.geadab3c
Previous: Eric SunshineNext: Jeff King
Message 10 of 12 in “fix transfer.hiderefs with smart http”
  1. 0/7 fix transfer.hiderefs with smart httpJeff King, Mar 13, 2015
  2. 1/7 upload-pack: fix transfer.hiderefs over smart-httpJeff King, Mar 13, 2015
  3. Junio C HamanoMar 13, 2015
  4. 2/7 upload-pack: do not check NULL return of lookup_unknown_objectJeff King, Mar 13, 2015
  5. 3/7 t: translate SIGINT to an exitJeff King, Mar 13, 2015
  6. 4/7 t: redirect stderr GIT_TRACE to descriptor 4Jeff King, Mar 13, 2015
  7. 5/7 t: pass GIT_TRACE through ApacheJeff King, Mar 13, 2015
  8. 6/7 t5541: move run_with_cmdline_limit to test-lib.shJeff King, Mar 13, 2015
  9. Eric SunshineMar 13, 2015
  10. 7/7 t5551: make EXPENSIVE test cheaperJeff King, Mar 13, 2015
  11. Jeff KingMar 13, 2015
  12. Duy NguyenMar 13, 2015

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.