diff options
Diffstat (limited to 'ext/wasm/tester1.c-pp.js')
| -rw-r--r-- | ext/wasm/tester1.c-pp.js | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/ext/wasm/tester1.c-pp.js b/ext/wasm/tester1.c-pp.js index d99d56fa9..b5125b0d8 100644 --- a/ext/wasm/tester1.c-pp.js +++ b/ext/wasm/tester1.c-pp.js @@ -3113,11 +3113,25 @@ globalThis.sqlite3InitModule = sqlite3InitModule; T.assert(db instanceof sqlite3.oo1.DB) .assert(1 === u1.getFileCount()); db.exec([ + 'pragma locking_mode=exclusive;', + 'pragma journal_mode=wal;' + /* WAL mode only works in this VFS if locking_mode=exclusive + is invoked prior to the first db access, as this build + does not have the shared-memory APIs needed for WAL without + exclusive-mode locking. See: + + https://sqlite.org/wal.html#use_of_wal_without_shared_memory + + Note that WAL mode here DOES NOT add any concurrency capabilities + to this VFS, but it MAY provide slightly improved performance + over the other journaling modes. + */, 'create table t(a);', 'insert into t(a) values(1),(2),(3)' ]); - T.assert(1 === u1.getFileCount()); - T.assert(3 === db.selectValue('select count(*) from t')); + T.assert(2 === u1.getFileCount() /* one is the journal file */) + .assert(3 === db.selectValue('select count(*) from t')) + .assert('wal'===db.selectValue('pragma journal_mode')); db.close(); T.assert(1 === u1.getFileCount()); db = new u2.OpfsSAHPoolDb(dbName); @@ -3137,6 +3151,7 @@ globalThis.sqlite3InitModule = sqlite3InitModule; .assert( dbytes.byteLength == nWrote ); let db2 = new u1.OpfsSAHPoolDb(dbName2); T.assert(db2 instanceof sqlite3.oo1.DB) + //.assert('wal' == db2.selectValue("pragma journal_mode=WAL")) .assert(3 === db2.selectValue('select count(*) from t')); db2.close(); T.assert(true === u1.unlink(dbName2)) |