Test for SupportLegacyParameterTokens

DapperLib · Oct 10, 2023 · c92c912 · c92c912
1 parent 4885264
commit c92c912
Showing 1 changed file with 35 additions and 0 deletions.
diff --git a/tests/Dapper.Tests/ParameterTests.cs b/tests/Dapper.Tests/ParameterTests.cs
@@ -1511,6 +1511,36 @@ public void Issue601_InternationalParameterNamesWork()
         [FactLongRunning]
         public void TestListExpansionPadding_Disabled() => TestListExpansionPadding(false);
 
+        [Theory]
+        [InlineData(true)]
+        [InlineData(false)]
+        public void OleDbParamFilterFails(bool legacyParameterToken)
+        {
+            SqlMapper.PurgeQueryCache();
+            var oldValue = SqlMapper.Settings.SupportLegacyParameterTokens;
+            try
+            {
+                SqlMapper.Settings.SupportLegacyParameterTokens = legacyParameterToken;
+
+                if (legacyParameterToken) // OLE DB parameter support enabled; can false-positive
+                {
+                    Assert.Throws<NotImplementedException>(() => GetValue(connection));
+                }
+                else // OLE DB parameter support disabled; more reliable
+                {
+                    Assert.Equal("this ? could be awkward", GetValue(connection));
+                }
+            }
+            finally
+            {
+                SqlMapper.Settings.SupportLegacyParameterTokens = oldValue;
+            }
+
+            static string GetValue(DbConnection connection)
+                => connection.QuerySingle<string>("select 'this ? could be awkward'",
+                    new TypeWithDodgyProperties());
+        }
+
         private void TestListExpansionPadding(bool enabled)
         {
             bool oldVal = SqlMapper.Settings.PadListExpansions;
@@ -1706,5 +1736,10 @@ class HazNullableSqlDecimal
             public int Id { get; set; }
             public SqlDecimal? Value { get; set; }
         }
+
+        class TypeWithDodgyProperties
+        {
+            public string Name => throw new NotSupportedException();
+        }
     }
 }