diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.DotNet9_0.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.DotNet9_0.verified.txt
new file mode 100644
index 00000000..997ea982
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.DotNet9_0.verified.txt
@@ -0,0 +1,2 @@
+SELECT [dbo].[Function1]()
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.verified.txt
new file mode 100644
index 00000000..997ea982
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function1_IsInlined.verified.txt
@@ -0,0 +1,2 @@
+SELECT [dbo].[Function1]()
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.DotNet9_0.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.DotNet9_0.verified.txt
new file mode 100644
index 00000000..3297b317
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.DotNet9_0.verified.txt
@@ -0,0 +1,2 @@
+SELECT [dbo].[Function2]([t].[Id])
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.verified.txt
new file mode 100644
index 00000000..3297b317
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_IsInlined.verified.txt
@@ -0,0 +1,2 @@
+SELECT [dbo].[Function2]([t].[Id])
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.DotNet9_0.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.DotNet9_0.verified.txt
new file mode 100644
index 00000000..d7992b64
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.DotNet9_0.verified.txt
@@ -0,0 +1,4 @@
+DECLARE @__arg_0 int = 1;
+
+SELECT [dbo].[Function2](@__arg_0)
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.verified.txt
new file mode 100644
index 00000000..d7992b64
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function2_WithExplicitArg_IsInlined.verified.txt
@@ -0,0 +1,4 @@
+DECLARE @__arg_0 int = 1;
+
+SELECT [dbo].[Function2](@__arg_0)
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function3_IsInlined.verified.txt b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function3_IsInlined.verified.txt
new file mode 100644
index 00000000..6896ee17
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.Function3_IsInlined.verified.txt
@@ -0,0 +1,2 @@
+SELECT [dbo].[Function3]()
+FROM [TestEntity] AS [t]
\ No newline at end of file
diff --git a/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.cs b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.cs
new file mode 100644
index 00000000..6d7aa94f
--- /dev/null
+++ b/tests/EntityFrameworkCore.Projectables.FunctionalTests/DbFunctionTests.cs
@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using EntityFrameworkCore.Projectables.FunctionalTests.Helpers;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Query.SqlExpressions;
+using static Microsoft.EntityFrameworkCore.DbLoggerCategory;
+
+namespace EntityFrameworkCore.Projectables.FunctionalTests;
+
+[UsesVerify]
+public class DbFunctionTests 
+{
+    public record TestEntity
+    {
+        public int Id { get; set; }
+
+        [Projectable]
+        public int Sample1() => DbFunctions.Function1();
+
+        [Projectable]
+        public int Sample2() => DbFunctions.Function2(Id);
+
+        [Projectable]
+        public int Sample3(int arg) => DbFunctions.Function2(arg);
+    }
+
+    public static class DbFunctions
+    {
+        public static int Function1() => throw new NotSupportedException();
+
+        public static int Function2(int a) => throw new NotSupportedException();
+    }
+
+    public class DbFunctionSampleDbContext : SampleDbContext<TestEntity>
+    {
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.HasDbFunction(typeof(DbFunctions).GetMethod(nameof(DbFunctions.Function1))!)
+                .HasName(nameof(DbFunctions.Function1));
+
+            modelBuilder.HasDbFunction(typeof(DbFunctions).GetMethod(nameof(DbFunctions.Function2))!)
+                .HasName(nameof(DbFunctions.Function2));
+
+            base.OnModelCreating(modelBuilder);
+        }
+    }
+
+    [Fact]
+    public Task Function1_IsInlined()
+    {
+        var dbContext = new DbFunctionSampleDbContext();
+        var query = dbContext.Set<TestEntity>().Select(x => x.Sample1());
+
+        return Verifier.Verify(query.ToQueryString());
+    }
+
+    [Fact]
+    public Task Function2_IsInlined()
+    {
+        var dbContext = new DbFunctionSampleDbContext();
+        var query = dbContext.Set<TestEntity>().Select(x => x.Sample2());
+
+        return Verifier.Verify(query.ToQueryString());
+    }
+
+    [Fact]
+    public Task Function2_WithExplicitArg_IsInlined()
+    {
+        var dbContext = new DbFunctionSampleDbContext();
+        var arg = 1;
+        var query = dbContext.Set<TestEntity>().Select(x => x.Sample3(arg));
+
+        return Verifier.Verify(query.ToQueryString());
+    }
+}