src/Tests.CSharp/PostgresCSharpTests.cs

@@ -314,21 +314,12 @@ public static class PostgresCSharpTests
         })
     ]);
     
-    private static readonly List<JsonDocument> TestDocuments =
-    [
-        new() { Id = "one", Value = "FIRST!", NumValue = 0 },
-        new() { Id = "two", Value = "another", NumValue = 10, Sub = new() { Foo = "green", Bar = "blue" } },
-        new() { Id = "three", Value = "", NumValue = 4 },
-        new() { Id = "four", Value = "purple", NumValue = 17, Sub = new() { Foo = "green", Bar = "red" } },
-        new() { Id = "five", Value = "purple", NumValue = 18 }
-    ];
-
     /// <summary>
     /// Add the test documents to the database
     /// </summary>
     internal static async Task LoadDocs()
     {
-        foreach (var doc in TestDocuments) await Document.Insert(SqliteDb.TableName, doc);
+        foreach (var doc in JsonDocument.TestDocuments) await Document.Insert(SqliteDb.TableName, doc);
     }
 
     /// <summary>
@@ -881,6 +872,15 @@ public static class PostgresCSharpTests
                     [Field.EQ("Value", "another")]);
                 Expect.hasLength(docs, 1, "There should have been one document returned");
             }),
+            TestCase("succeeds when documents are found using IN with numeric field", async () =>
+            {
+                await using var db = PostgresDb.BuildDb();
+                await LoadDocs();
+
+                var docs = await Find.ByFields<JsonDocument>(PostgresDb.TableName, FieldMatch.All,
+                    [Field.IN("NumValue", [2, 4, 6, 8])]);
+                Expect.hasLength(docs, 1, "There should have been one document returned");
+            }),
             TestCase("succeeds when documents are not found", async () =>
             {
                 await using var db = PostgresDb.BuildDb();

src/Tests.CSharp/SqliteCSharpTests.cs

@@ -129,24 +129,12 @@ public static class SqliteCSharpTests
     
     // Results are exhaustively executed in the context of other tests
     
-    /// <summary>
-    /// Documents used for integration tests
-    /// </summary>
-    private static readonly List<JsonDocument> TestDocuments =
-    [
-        new() { Id = "one", Value = "FIRST!", NumValue = 0 },
-        new() { Id = "two", Value = "another", NumValue = 10, Sub = new() { Foo = "green", Bar = "blue" } },
-        new() { Id = "three", Value = "", NumValue = 4 },
-        new() { Id = "four", Value = "purple", NumValue = 17, Sub = new() { Foo = "green", Bar = "red" } },
-        new() { Id = "five", Value = "purple", NumValue = 18 }
-    ];
-
     /// <summary>
     /// Add the test documents to the database
     /// </summary>
     internal static async Task LoadDocs()
     {
-        foreach (var doc in TestDocuments) await Document.Insert(SqliteDb.TableName, doc);
+        foreach (var doc in JsonDocument.TestDocuments) await Document.Insert(SqliteDb.TableName, doc);
     }
 
     /// <summary>
@@ -608,6 +596,15 @@ public static class SqliteCSharpTests
                     [Field.GT("NumValue", 15)]);
                 Expect.equal(docs.Count, 2, "There should have been two documents returned");
             }),
+            TestCase("succeeds when documents are found using IN with numeric field", async () =>
+            {
+                await using var db = await SqliteDb.BuildDb();
+                await LoadDocs();
+
+                var docs = await Find.ByFields<JsonDocument>(SqliteDb.TableName, FieldMatch.All,
+                    [Field.IN("NumValue", [2, 4, 6, 8])]);
+                Expect.hasLength(docs, 1, "There should have been one document returned");
+            }),
             TestCase("succeeds when documents are not found", async () =>
             {
                 await using var db = await SqliteDb.BuildDb();

src/Tests.CSharp/Types.cs

@@ -18,4 +18,16 @@ public class JsonDocument
     public string Value { get; set; } = "";
     public int NumValue { get; set; } = 0;
     public SubDocument? Sub { get; set; } = null;
+    
+    /// <summary>
+    /// A set of documents used for integration tests
+    /// </summary>
+    public static readonly List<JsonDocument> TestDocuments =
+    [
+        new() { Id = "one", Value = "FIRST!", NumValue = 0 },
+        new() { Id = "two", Value = "another", NumValue = 10, Sub = new() { Foo = "green", Bar = "blue" } },
+        new() { Id = "three", Value = "", NumValue = 4 },
+        new() { Id = "four", Value = "purple", NumValue = 17, Sub = new() { Foo = "green", Bar = "red" } },
+        new() { Id = "five", Value = "purple", NumValue = 18 }
+    ];
 }

src/Tests/PostgresTests.fs

@@ -719,8 +719,16 @@ let findTests = testList "Find" [
             do! loadDocs ()
 
             let! docs =
-                Find.byFields<JsonDocument> PostgresDb.TableName All [ Field.EQ "Value" "purple"; Field.EX "Sub" ]
+                Find.byFields<JsonDocument>
-            Expect.equal (List.length docs) 1 "There should have been one document returned"
+                    PostgresDb.TableName All [ Field.IN "Value" [ "purple"; "blue" ]; Field.EX "Sub" ]
+            Expect.hasLength docs 1 "There should have been one document returned"
+        }
+        testTask "succeeds when documents are found using IN with numeric field" {
+            use db = PostgresDb.BuildDb()
+            do! loadDocs ()
+
+            let! docs = Find.byFields<JsonDocument> PostgresDb.TableName All [ Field.IN "NumValue" [ 2; 4; 6; 8 ] ]
+            Expect.hasLength docs 1 "There should have been one document returned"
         }
         testTask "succeeds when documents are not found" {
             use db = PostgresDb.BuildDb()

src/Tests/SqliteTests.fs

@@ -515,7 +515,14 @@ let findTests = testList "Find" [
             do! loadDocs ()
 
             let! docs = Find.byFields<JsonDocument> SqliteDb.TableName Any [ Field.GT "NumValue" 15 ]
-            Expect.equal (List.length docs) 2 "There should have been two documents returned"
+            Expect.hasLength docs 2 "There should have been two documents returned"
+        }
+        testTask "succeeds when documents are found using IN with numeric field" {
+            use! db = SqliteDb.BuildDb()
+            do! loadDocs ()
+
+            let! docs = Find.byFields<JsonDocument> SqliteDb.TableName All [ Field.IN "NumValue" [ 2; 4; 6; 8 ] ]
+            Expect.hasLength docs 1 "There should have been one document returned"
         }
         testTask "succeeds when documents are not found" {
             use! db = SqliteDb.BuildDb()