From 2ceece3ef384385d886f6aed5311d9b6dbbdd6dd Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Mon, 30 Jan 2023 22:15:23 +0100
Subject: NarInfoDiskCache: Prepare reproducer for #3898

---
 src/libstore/tests/nar-info-disk-cache.cc | 87 +++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/libstore/tests/nar-info-disk-cache.cc

(limited to 'src/libstore/tests')

diff --git a/src/libstore/tests/nar-info-disk-cache.cc b/src/libstore/tests/nar-info-disk-cache.cc
new file mode 100644
index 000000000..1e9cbaa78
--- /dev/null
+++ b/src/libstore/tests/nar-info-disk-cache.cc
@@ -0,0 +1,87 @@
+#include "nar-info-disk-cache.hh"
+
+#include <gtest/gtest.h>
+#include <rapidcheck/gtest.h>
+#include "sqlite.hh"
+#include <sqlite3.h>
+
+
+namespace nix {
+
+RC_GTEST_PROP(
+    NarInfoDiskCacheImpl,
+    create_and_read,
+    (int prio, bool wantMassQuery)
+    )
+{
+    Path tmpDir = createTempDir();
+    AutoDelete delTmpDir(tmpDir);
+    Path dbPath(tmpDir + "/test-narinfo-disk-cache.sqlite");
+    auto cache = getTestNarInfoDiskCache(dbPath);
+
+    cache->createCache("other://uri", "/nix/storedir", wantMassQuery, prio);
+    cache->createCache("other://uri-2", "/nix/storedir", wantMassQuery, prio);
+
+    cache->createCache("the://uri", "/nix/storedir", wantMassQuery, prio);
+
+    {
+        auto r = cache->upToDateCacheExists("the://uri");
+        ASSERT_TRUE(r);
+        ASSERT_EQ(r->priority, prio);
+        ASSERT_EQ(r->wantMassQuery, wantMassQuery);
+    }
+
+    SQLite db(dbPath);
+    SQLiteStmt getIds;
+    getIds.create(db, "SELECT id FROM BinaryCaches WHERE url = 'the://uri'");
+
+    int savedId;
+    {
+        auto q(getIds.use());
+        ASSERT_TRUE(q.next());
+        savedId = q.getInt(0);
+        ASSERT_FALSE(q.next());
+    }
+
+
+    db.exec("UPDATE BinaryCaches SET timestamp = timestamp - 1 - 7 * 24 * 3600;");
+
+    // Relies on memory cache
+    {
+        auto r = cache->upToDateCacheExists("the://uri");
+        ASSERT_TRUE(r);
+        ASSERT_EQ(r->priority, prio);
+        ASSERT_EQ(r->wantMassQuery, wantMassQuery);
+    }
+
+    auto cache2 = getTestNarInfoDiskCache(dbPath);
+
+    {
+        auto r = cache2->upToDateCacheExists("the://uri");
+        ASSERT_FALSE(r);
+    }
+
+    cache2->createCache("the://uri", "/nix/storedir", wantMassQuery, prio);
+
+    {
+        auto r = cache->upToDateCacheExists("the://uri");
+        ASSERT_TRUE(r);
+        ASSERT_EQ(r->priority, prio);
+        ASSERT_EQ(r->wantMassQuery, wantMassQuery);
+        // FIXME, reproduces #3898
+        // ASSERT_EQ(r->id, savedId);
+        (void) savedId;
+    }
+
+    {
+        auto q(getIds.use());
+        ASSERT_TRUE(q.next());
+        auto currentId = q.getInt(0);
+        ASSERT_FALSE(q.next());
+        // FIXME, reproduces #3898
+        // ASSERT_EQ(currentId, savedId);
+        (void) currentId;
+    }
+}
+
+}
-- 
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