|
| 1 | +using Npgsql; |
| 2 | + |
| 3 | +var user = args[0]; |
| 4 | +var port = args[1]; |
| 5 | + |
| 6 | +var connStr = $"Host=localhost;Port={port};Username={user};Password=password;Database=postgres;SSL Mode=Disable"; |
| 7 | +await using var conn = new NpgsqlConnection(connStr); |
| 8 | +await conn.OpenAsync(); |
| 9 | + |
| 10 | +// Basic SELECT |
| 11 | +await using (var cmd = new NpgsqlCommand("SELECT pk FROM test_table LIMIT 1", conn)) |
| 12 | +{ |
| 13 | + var pk = (int)(await cmd.ExecuteScalarAsync())!; |
| 14 | + if (pk != 1) |
| 15 | + throw new Exception($"expected pk=1, got {pk}"); |
| 16 | +} |
| 17 | + |
| 18 | +// INSERT |
| 19 | +await using (var cmd = new NpgsqlCommand("INSERT INTO test_table VALUES (2)", conn)) |
| 20 | + await cmd.ExecuteNonQueryAsync(); |
| 21 | + |
| 22 | +// COUNT |
| 23 | +await using (var cmd = new NpgsqlCommand("SELECT COUNT(*) FROM test_table", conn)) |
| 24 | +{ |
| 25 | + var count = (long)(await cmd.ExecuteScalarAsync())!; |
| 26 | + if (count != 2) |
| 27 | + throw new Exception($"expected count=2, got {count}"); |
| 28 | +} |
| 29 | + |
| 30 | +// Prepared SELECT |
| 31 | +await using (var cmd = new NpgsqlCommand("SELECT pk FROM test_table WHERE pk = $1", conn)) |
| 32 | +{ |
| 33 | + cmd.Parameters.AddWithValue(1); |
| 34 | + await cmd.PrepareAsync(); |
| 35 | + var pk = (int)(await cmd.ExecuteScalarAsync())!; |
| 36 | + if (pk != 1) |
| 37 | + throw new Exception($"expected pk=1 from prepared stmt, got {pk}"); |
| 38 | +} |
| 39 | + |
| 40 | +// Dolt workflow: create table, insert, commit, branch, insert, commit, merge |
| 41 | +foreach (var q in new[] |
| 42 | +{ |
| 43 | + "DROP TABLE IF EXISTS test", |
| 44 | + "CREATE TABLE test (pk int, value int, PRIMARY KEY(pk))", |
| 45 | + "INSERT INTO test (pk, value) VALUES (0, 0)", |
| 46 | + "SELECT dolt_add('-A')", |
| 47 | + "SELECT dolt_commit('-m', 'added table test')", |
| 48 | + "SELECT dolt_checkout('-b', 'mybranch')", |
| 49 | + "INSERT INTO test VALUES (1, 1)", |
| 50 | + "SELECT dolt_commit('-a', '-m', 'updated test')", |
| 51 | + "SELECT dolt_checkout('main')", |
| 52 | + "SELECT dolt_merge('mybranch')", |
| 53 | +}) |
| 54 | +{ |
| 55 | + await using var cmd = new NpgsqlCommand(q, conn); |
| 56 | + await cmd.ExecuteNonQueryAsync(); |
| 57 | +} |
| 58 | + |
| 59 | +await RunPreparedQuery( |
| 60 | + "SELECT pk, value FROM test WHERE pk = $1", |
| 61 | + [0], |
| 62 | + async r => |
| 63 | + { |
| 64 | + if (!await r.ReadAsync()) throw new Exception("no rows"); |
| 65 | + var pk = r.GetInt32(0); |
| 66 | + var value = r.GetInt32(1); |
| 67 | + if (pk != 0 || value != 0) |
| 68 | + throw new Exception($"expected pk=0 value=0, got pk={pk} value={value}"); |
| 69 | + }); |
| 70 | + |
| 71 | +await RunPreparedQuery( |
| 72 | + "SELECT COUNT(*) FROM dolt_log", |
| 73 | + [], |
| 74 | + async r => |
| 75 | + { |
| 76 | + if (!await r.ReadAsync()) throw new Exception("no rows"); |
| 77 | + var size = r.GetInt64(0); |
| 78 | + if (size != 4) |
| 79 | + throw new Exception($"expected 4 dolt_log entries, got {size}"); |
| 80 | + }); |
| 81 | + |
| 82 | +await RunPreparedQuery( |
| 83 | + "SELECT COUNT(*) FROM test", |
| 84 | + [], |
| 85 | + async r => |
| 86 | + { |
| 87 | + if (!await r.ReadAsync()) throw new Exception("no rows"); |
| 88 | + var size = r.GetInt64(0); |
| 89 | + if (size != 2) |
| 90 | + throw new Exception($"expected 2 rows in test, got {size}"); |
| 91 | + }); |
| 92 | + |
| 93 | +Console.WriteLine("Npgsql test passed"); |
| 94 | + |
| 95 | +async Task RunPreparedQuery(string query, object[] queryArgs, Func<NpgsqlDataReader, Task> check) |
| 96 | +{ |
| 97 | + await using var cmd = new NpgsqlCommand(query, conn); |
| 98 | + foreach (var arg in queryArgs) |
| 99 | + cmd.Parameters.AddWithValue(arg); |
| 100 | + await cmd.PrepareAsync(); |
| 101 | + await using var reader = await cmd.ExecuteReaderAsync(); |
| 102 | + await check(reader); |
| 103 | +} |
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