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| 1 | +using static Microsoft.VisualStudio.TestTools.UnitTesting.Assert; |
| 2 | + |
| 3 | +namespace SqlServerSimulator; |
| 4 | + |
| 5 | +/// <summary> |
| 6 | +/// Exercises the parse-and-discard surface for the database-scope |
| 7 | +/// <c>ALTER DATABASE name SET …</c> options the bacpac loader will emit on |
| 8 | +/// import. The semantic effect of these toggles isn't modeled (the simulator |
| 9 | +/// has no recovery model, no query store, no torn-page detector); the test |
| 10 | +/// goal is that each canonical T-SQL shape SqlPackage may emit parses |
| 11 | +/// without throwing. Shapes are probe-confirmed against SQL Server 2025 |
| 12 | +/// (2026-05-14). Load-bearing options (COMPATIBILITY_LEVEL, ALLOW_SNAPSHOT_ISOLATION, |
| 13 | +/// READ_COMMITTED_SNAPSHOT) have separate behavior coverage in |
| 14 | +/// <see cref="CompatibilityLevelTests"/> and <see cref="SnapshotIsolationTests"/>. |
| 15 | +/// </summary> |
| 16 | +[TestClass] |
| 17 | +public class AlterDatabaseOptionsTests |
| 18 | +{ |
| 19 | + [TestMethod] |
| 20 | + // ON/OFF (no `=`) |
| 21 | + [DataRow("ALTER DATABASE claude SET ANSI_NULLS ON")] |
| 22 | + [DataRow("ALTER DATABASE claude SET ANSI_NULLS OFF")] |
| 23 | + [DataRow("ALTER DATABASE claude SET ANSI_PADDING ON")] |
| 24 | + [DataRow("ALTER DATABASE claude SET ANSI_WARNINGS ON")] |
| 25 | + [DataRow("ALTER DATABASE claude SET ARITHABORT ON")] |
| 26 | + [DataRow("ALTER DATABASE claude SET CONCAT_NULL_YIELDS_NULL ON")] |
| 27 | + [DataRow("ALTER DATABASE claude SET NUMERIC_ROUNDABORT OFF")] |
| 28 | + [DataRow("ALTER DATABASE claude SET QUOTED_IDENTIFIER ON")] |
| 29 | + [DataRow("ALTER DATABASE claude SET TORN_PAGE_DETECTION OFF")] |
| 30 | + [DataRow("ALTER DATABASE claude SET TEMPORAL_HISTORY_RETENTION ON")] |
| 31 | + // Enum (bare identifier value) |
| 32 | + [DataRow("ALTER DATABASE claude SET RECOVERY FULL")] |
| 33 | + [DataRow("ALTER DATABASE claude SET RECOVERY BULK_LOGGED")] |
| 34 | + [DataRow("ALTER DATABASE claude SET RECOVERY SIMPLE")] |
| 35 | + [DataRow("ALTER DATABASE claude SET PAGE_VERIFY CHECKSUM")] |
| 36 | + [DataRow("ALTER DATABASE claude SET PAGE_VERIFY NONE")] |
| 37 | + [DataRow("ALTER DATABASE claude SET PAGE_VERIFY TORN_PAGE_DETECTION")] |
| 38 | + [DataRow("ALTER DATABASE claude SET CURSOR_DEFAULT GLOBAL")] |
| 39 | + [DataRow("ALTER DATABASE claude SET CURSOR_DEFAULT LOCAL")] |
| 40 | + // `= ON|OFF` (`=` required) |
| 41 | + [DataRow("ALTER DATABASE claude SET ACCELERATED_DATABASE_RECOVERY = ON")] |
| 42 | + [DataRow("ALTER DATABASE claude SET ACCELERATED_DATABASE_RECOVERY = OFF")] |
| 43 | + [DataRow("ALTER DATABASE claude SET OPTIMIZED_LOCKING = ON")] |
| 44 | + [DataRow("ALTER DATABASE claude SET OPTIMIZED_LOCKING = OFF")] |
| 45 | + // Integer with unit |
| 46 | + [DataRow("ALTER DATABASE claude SET TARGET_RECOVERY_TIME = 60 SECONDS")] |
| 47 | + [DataRow("ALTER DATABASE claude SET TARGET_RECOVERY_TIME = 1 MINUTES")] |
| 48 | + // CURRENT name |
| 49 | + [DataRow("ALTER DATABASE CURRENT SET ANSI_NULLS ON")] |
| 50 | + public void Option_ParsesAndDiscards(string sql) |
| 51 | + => AreEqual(-1, new Simulation().ExecuteNonQuery(sql)); |
| 52 | + |
| 53 | + [TestMethod] |
| 54 | + // Bare ON/OFF — the simplest QUERY_STORE shape |
| 55 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON")] |
| 56 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = OFF")] |
| 57 | + // CLEAR / CLEAR ALL — no `=` |
| 58 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE CLEAR")] |
| 59 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE CLEAR ALL")] |
| 60 | + // Single sub-option |
| 61 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (OPERATION_MODE = READ_WRITE)")] |
| 62 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (OPERATION_MODE = READ_ONLY)")] |
| 63 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (DATA_FLUSH_INTERVAL_SECONDS = 900)")] |
| 64 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (MAX_STORAGE_SIZE_MB = 1000)")] |
| 65 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (INTERVAL_LENGTH_MINUTES = 30)")] |
| 66 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (SIZE_BASED_CLEANUP_MODE = AUTO)")] |
| 67 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (SIZE_BASED_CLEANUP_MODE = OFF)")] |
| 68 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_MODE = ALL)")] |
| 69 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_MODE = AUTO)")] |
| 70 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_MODE = NONE)")] |
| 71 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_MODE = CUSTOM)")] |
| 72 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (MAX_PLANS_PER_QUERY = 200)")] |
| 73 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (WAIT_STATS_CAPTURE_MODE = ON)")] |
| 74 | + // Nested sub-blocks |
| 75 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (CLEANUP_POLICY = (STALE_QUERY_THRESHOLD_DAYS = 30))")] |
| 76 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_POLICY = (EXECUTION_COUNT = 10))")] |
| 77 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (QUERY_CAPTURE_POLICY = (STALE_CAPTURE_POLICY_THRESHOLD = 24 HOURS, EXECUTION_COUNT = 30, TOTAL_COMPILE_CPU_TIME_MS = 1000, TOTAL_EXECUTION_CPU_TIME_MS = 100))")] |
| 78 | + // Multi-sub-option |
| 79 | + [DataRow("ALTER DATABASE claude SET QUERY_STORE = ON (OPERATION_MODE = READ_WRITE, INTERVAL_LENGTH_MINUTES = 30, MAX_STORAGE_SIZE_MB = 1000, QUERY_CAPTURE_MODE = AUTO)")] |
| 80 | + public void QueryStore_ParsesAndDiscards(string sql) |
| 81 | + => AreEqual(-1, new Simulation().ExecuteNonQuery(sql)); |
| 82 | + |
| 83 | + [TestMethod] |
| 84 | + public void QueryStore_UnknownSubOption_RaisesSyntaxError() |
| 85 | + { |
| 86 | + // Probe-confirmed verbatim: SQL Server 2025 raises Msg 102 near the |
| 87 | + // first unknown sub-option name; the simulator's parse-and-discard |
| 88 | + // walks each sub-option through the closed accept-list and the first |
| 89 | + // unknown name surfaces as Msg 102. |
| 90 | + var ex = new Simulation().AssertSqlError( |
| 91 | + "ALTER DATABASE claude SET QUERY_STORE = ON (BOGUS_OPTION = 1)", |
| 92 | + 102); |
| 93 | + Contains("BOGUS_OPTION", ex.Message); |
| 94 | + } |
| 95 | + |
| 96 | + [TestMethod] |
| 97 | + public void Collate_Default_Accepts() |
| 98 | + => AreEqual(-1, new Simulation().ExecuteNonQuery( |
| 99 | + "ALTER DATABASE claude COLLATE SQL_Latin1_General_CP1_CI_AS")); |
| 100 | + |
| 101 | + [TestMethod] |
| 102 | + public void Collate_NonDefault_RaisesNotSupported() |
| 103 | + { |
| 104 | + var ex = Throws<NotSupportedException>(() => |
| 105 | + new Simulation().ExecuteNonQuery("ALTER DATABASE claude COLLATE Japanese_CI_AS")); |
| 106 | + Contains("Japanese_CI_AS", ex.Message); |
| 107 | + Contains("SQL_Latin1_General_CP1_CI_AS", ex.Message); |
| 108 | + } |
| 109 | + |
| 110 | + [TestMethod] |
| 111 | + public void Recovery_WithEqualsSign_RaisesSyntaxError() |
| 112 | + { |
| 113 | + // Probe-confirmed: SQL Server 2025 rejects `SET RECOVERY = FULL` |
| 114 | + // (the documented grammar is bare enum value, no `=`). Simulator |
| 115 | + // falls through to Msg 102 the same way. |
| 116 | + _ = new Simulation().AssertSqlError( |
| 117 | + "ALTER DATABASE claude SET RECOVERY = FULL", 102); |
| 118 | + } |
| 119 | + |
| 120 | + [TestMethod] |
| 121 | + public void AcceleratedDatabaseRecovery_BareForm_RaisesSyntaxError() |
| 122 | + { |
| 123 | + // Probe-confirmed: SQL Server 2025 requires `= ON|OFF` for this option. |
| 124 | + _ = new Simulation().AssertSqlError( |
| 125 | + "ALTER DATABASE claude SET ACCELERATED_DATABASE_RECOVERY ON", 102); |
| 126 | + } |
| 127 | + |
| 128 | + [TestMethod] |
| 129 | + public void TargetRecoveryTime_MissingUnit_RaisesSyntaxError() |
| 130 | + { |
| 131 | + // Probe-confirmed: the unit (SECONDS|MINUTES) is required. |
| 132 | + _ = new Simulation().AssertSqlError( |
| 133 | + "ALTER DATABASE claude SET TARGET_RECOVERY_TIME = 60", 102); |
| 134 | + } |
| 135 | + |
| 136 | + [TestMethod] |
| 137 | + public void ReadCommittedSnapshot_StillWiredThrough() |
| 138 | + { |
| 139 | + // Regression: the dispatcher refactor must preserve the load-bearing |
| 140 | + // semantic effect for the three historically-shipped options. |
| 141 | + // RCSI is the easiest to observe externally. |
| 142 | + var sim = new Simulation(); |
| 143 | + _ = sim.ExecuteNonQuery("ALTER DATABASE claude SET READ_COMMITTED_SNAPSHOT ON"); |
| 144 | + // Indirect verification: SI iso under RCSI doesn't raise Msg 3952 on a |
| 145 | + // statement-level snapshot read. |
| 146 | + using var conn = sim.CreateOpenConnection(); |
| 147 | + using var cmd = conn.CreateCommand("SELECT 1"); |
| 148 | + AreEqual(1, cmd.ExecuteScalar()); |
| 149 | + } |
| 150 | +} |
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