f7f37035c8
Today, with the tests inside a `tests` intermingled with the
corresponding library's source code, we have a few problems:
- We have to be careful that wildcards don't end up with tests being
built as part of Nix proper, or test headers being installed as part
of Nix proper.
- Tests in libraries but not executables is not right:
- It means each executable runs the previous unit tests again, because
it needs the libraries.
- It doesn't work right on Windows, which doesn't want you to load a
DLL just for the side global variable . It could be made to work
with the dlopen equivalent, but that's gross!
This reorg solves these problems.
There is a remaining problem which is that sibbling headers (like
`hash.hh` the test header vs `hash.hh` the main `libnixutil` header) end
up shadowing each other. This PR doesn't solve that. That is left as
future work for a future PR.
Co-authored-by: Valentin Gagarin <valentin.gagarin@tweag.io>
(cherry picked from commit 91b6833686a6a6d9eac7f3f66393ec89ef1d3b57)
(cherry picked from commit a61e42adb528b3d40ce43e07c79368d779a8b624)
124 lines
4 KiB
C++
124 lines
4 KiB
C++
#include "nar-info-disk-cache.hh"
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#include <gtest/gtest.h>
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#include <rapidcheck/gtest.h>
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#include "sqlite.hh"
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#include <sqlite3.h>
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namespace nix {
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TEST(NarInfoDiskCacheImpl, create_and_read) {
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// This is a large single test to avoid some setup overhead.
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int prio = 12345;
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bool wantMassQuery = true;
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Path tmpDir = createTempDir();
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AutoDelete delTmpDir(tmpDir);
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Path dbPath(tmpDir + "/test-narinfo-disk-cache.sqlite");
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int savedId;
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int barId;
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SQLite db;
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SQLiteStmt getIds;
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{
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auto cache = getTestNarInfoDiskCache(dbPath);
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// Set up "background noise" and check that different caches receive different ids
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{
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auto bc1 = cache->createCache("https://bar", "/nix/storedir", wantMassQuery, prio);
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auto bc2 = cache->createCache("https://xyz", "/nix/storedir", false, 12);
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ASSERT_NE(bc1, bc2);
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barId = bc1;
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}
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// Check that the fields are saved and returned correctly. This does not test
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// the select statement yet, because of in-memory caching.
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savedId = cache->createCache("http://foo", "/nix/storedir", wantMassQuery, prio);;
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{
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auto r = cache->upToDateCacheExists("http://foo");
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ASSERT_TRUE(r);
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ASSERT_EQ(r->priority, prio);
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ASSERT_EQ(r->wantMassQuery, wantMassQuery);
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ASSERT_EQ(savedId, r->id);
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}
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// We're going to pay special attention to the id field because we had a bug
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// that changed it.
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db = SQLite(dbPath);
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getIds.create(db, "select id from BinaryCaches where url = 'http://foo'");
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{
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auto q(getIds.use());
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ASSERT_TRUE(q.next());
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ASSERT_EQ(savedId, q.getInt(0));
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ASSERT_FALSE(q.next());
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}
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// Pretend that the caches are older, but keep one up to date, as "background noise"
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db.exec("update BinaryCaches set timestamp = timestamp - 1 - 7 * 24 * 3600 where url <> 'https://xyz';");
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// This shows that the in-memory cache works
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{
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auto r = cache->upToDateCacheExists("http://foo");
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ASSERT_TRUE(r);
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ASSERT_EQ(r->priority, prio);
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ASSERT_EQ(r->wantMassQuery, wantMassQuery);
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}
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}
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{
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// We can't clear the in-memory cache, so we use a new cache object. This is
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// more realistic anyway.
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auto cache2 = getTestNarInfoDiskCache(dbPath);
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{
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auto r = cache2->upToDateCacheExists("http://foo");
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ASSERT_FALSE(r);
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}
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// "Update", same data, check that the id number is reused
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cache2->createCache("http://foo", "/nix/storedir", wantMassQuery, prio);
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{
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auto r = cache2->upToDateCacheExists("http://foo");
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ASSERT_TRUE(r);
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ASSERT_EQ(r->priority, prio);
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ASSERT_EQ(r->wantMassQuery, wantMassQuery);
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ASSERT_EQ(r->id, savedId);
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}
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{
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auto q(getIds.use());
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ASSERT_TRUE(q.next());
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auto currentId = q.getInt(0);
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ASSERT_FALSE(q.next());
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ASSERT_EQ(currentId, savedId);
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}
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// Check that the fields can be modified, and the id remains the same
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{
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auto r0 = cache2->upToDateCacheExists("https://bar");
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ASSERT_FALSE(r0);
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cache2->createCache("https://bar", "/nix/storedir", !wantMassQuery, prio + 10);
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auto r = cache2->upToDateCacheExists("https://bar");
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ASSERT_EQ(r->wantMassQuery, !wantMassQuery);
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ASSERT_EQ(r->priority, prio + 10);
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ASSERT_EQ(r->id, barId);
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}
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// // Force update (no use case yet; we only retrieve cache metadata when stale based on timestamp)
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// {
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// cache2->createCache("https://bar", "/nix/storedir", wantMassQuery, prio + 20);
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// auto r = cache2->upToDateCacheExists("https://bar");
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// ASSERT_EQ(r->wantMassQuery, wantMassQuery);
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// ASSERT_EQ(r->priority, prio + 20);
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// }
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}
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}
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}
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