veilid/veilid-flutter/example/integration_test/test_table_db.dart

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import 'dart:convert';
import 'package:flutter_test/flutter_test.dart';
import 'package:veilid/veilid.dart';
const testDb = "__dart_test_db";
const testNonexistentDb = "__dart_test_nonexistent_db";
Future<void> testDeleteTableDbNonExistent() async {
expect(await Veilid.instance.deleteTableDB(testNonexistentDb), isFalse);
}
Future<void> testOpenDeleteTableDb() async {
// delete test db if it exists
await Veilid.instance.deleteTableDB(testDb);
final tdb = await Veilid.instance.openTableDB(testDb, 1);
try {
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await expectLater(() async => await Veilid.instance.deleteTableDB(testDb),
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throwsA(isA<VeilidAPIException>()));
} finally {
tdb.close();
}
expect(await Veilid.instance.deleteTableDB(testDb), isTrue);
}
Future<void> testOpenTwiceTableDb() async {
// delete test db if it exists
await Veilid.instance.deleteTableDB(testDb);
final tdb = await Veilid.instance.openTableDB(testDb, 1);
final tdb2 = await Veilid.instance.openTableDB(testDb, 1);
// delete should fail because open
await expectLater(() async => await Veilid.instance.deleteTableDB(testDb),
throwsA(isA<VeilidAPIException>()));
tdb.close();
// delete should fail because open
await expectLater(() async => await Veilid.instance.deleteTableDB(testDb),
throwsA(isA<VeilidAPIException>()));
tdb2.close();
// delete should now succeed
expect(await Veilid.instance.deleteTableDB(testDb), isTrue);
}
Future<void> testOpenTwiceTableDbStoreLoad() async {
// delete test db if it exists
await Veilid.instance.deleteTableDB(testDb);
final tdb = await Veilid.instance.openTableDB(testDb, 1);
try {
final tdb2 = await Veilid.instance.openTableDB(testDb, 1);
try {
// store into first db copy
await tdb.store(0, utf8.encode("asdf"), utf8.encode("1234"));
// load from second db copy
expect(
await tdb2.load(0, utf8.encode("asdf")), equals(utf8.encode("1234")));
} finally {
tdb2.close();
}
} finally {
tdb.close();
}
// delete should now succeed
expect(await Veilid.instance.deleteTableDB(testDb), isTrue);
}
Future<void> testOpenTwiceTableDbStoreDeleteLoad() async {
// delete test db if it exists
await Veilid.instance.deleteTableDB(testDb);
final tdb = await Veilid.instance.openTableDB(testDb, 1);
try {
final tdb2 = await Veilid.instance.openTableDB(testDb, 1);
try {
// store into first db copy
await tdb.store(0, utf8.encode("asdf"), utf8.encode("1234"));
// delete from second db copy and clean up
await tdb2.delete(0, utf8.encode("asdf"));
} finally {
tdb2.close();
}
// load from first db copy
expect(await tdb.load(0, utf8.encode("asdf")), isNull);
} finally {
tdb.close();
}
// delete should now succeed
expect(await Veilid.instance.deleteTableDB(testDb), isTrue);
}
Future<void> testResizeTableDb() async {
// delete test db if it exists
await Veilid.instance.deleteTableDB(testDb);
final tdb = await Veilid.instance.openTableDB(testDb, 1);
try {
// reopen the db with more columns should fail if it is already open
await expectLater(() async => await Veilid.instance.openTableDB(testDb, 2),
throwsA(isA<VeilidAPIException>()));
} finally {
tdb.close();
}
final tdb2 = await Veilid.instance.openTableDB(testDb, 2);
try {
// write something to second column
await tdb2.store(1, utf8.encode("qwer"), utf8.encode("5678"));
// reopen the db with fewer columns
final tdb3 = await Veilid.instance.openTableDB(testDb, 1);
try {
// Should fail access to second column
await expectLater(() async => await tdb3.load(1, utf8.encode("qwer")),
throwsA(isA<VeilidAPIException>()));
// Should succeed with access to second column
expect(
await tdb2.load(1, utf8.encode("qwer")), equals(utf8.encode("5678")));
} finally {
tdb3.close();
}
} finally {
tdb2.close();
}
// delete should now succeed
expect(await Veilid.instance.deleteTableDB(testDb), isTrue);
}