diff --git a/ErsatzTV.Infrastructure.Tests/ErsatzTV.Infrastructure.Tests.csproj b/ErsatzTV.Infrastructure.Tests/ErsatzTV.Infrastructure.Tests.csproj
index 142eda6d5..80ed692fa 100644
--- a/ErsatzTV.Infrastructure.Tests/ErsatzTV.Infrastructure.Tests.csproj
+++ b/ErsatzTV.Infrastructure.Tests/ErsatzTV.Infrastructure.Tests.csproj
@@ -29,4 +29,10 @@
         <ProjectReference Include="..\ErsatzTV.Infrastructure\ErsatzTV.Infrastructure.csproj" />
     </ItemGroup>
 
+    <ItemGroup>
+      <EmbeddedResource Include="..\ErsatzTV\Resources\sequential-schedule.schema.json">
+        <Link>Resources/sequential-schedule.schema.json</Link>
+      </EmbeddedResource>
+    </ItemGroup>
+
 </Project>
diff --git a/ErsatzTV.Infrastructure.Tests/Scheduling/SequentialScheduleValidatorTests.cs b/ErsatzTV.Infrastructure.Tests/Scheduling/SequentialScheduleValidatorTests.cs
new file mode 100644
index 000000000..b0092e41b
--- /dev/null
+++ b/ErsatzTV.Infrastructure.Tests/Scheduling/SequentialScheduleValidatorTests.cs
@@ -0,0 +1,200 @@
+using System.Reflection;
+using ErsatzTV.Core;
+using ErsatzTV.Infrastructure.Scheduling;
+using Microsoft.Extensions.Logging;
+using NSubstitute;
+using NUnit.Framework;
+using Shouldly;
+using Testably.Abstractions.Testing;
+
+namespace ErsatzTV.Infrastructure.Tests.Scheduling;
+
+[TestFixture]
+public class SequentialScheduleValidatorTests
+{
+    private readonly string _schema;
+
+    public SequentialScheduleValidatorTests()
+    {
+        var assembly = Assembly.GetAssembly(typeof(SequentialScheduleValidatorTests));
+        assembly.ShouldNotBeNull();
+
+        using var stream = assembly.GetManifestResourceStream(
+            "ErsatzTV.Infrastructure.Tests.Resources.sequential-schedule.schema.json");
+        stream.ShouldNotBeNull();
+
+        using var reader = new StreamReader(stream);
+        _schema = reader.ReadToEnd();
+    }
+
+    [CancelAfter(2_000)]
+    [Test]
+    public async Task ValidateSchedule_Should_Succeed_Valid_Schedule(CancellationToken cancellationToken)
+    {
+        const string YAML =
+"""
+content:
+  - show:
+    key: "SOME_SHOW"
+    guids:
+      - source: "imdb"
+        value: "tt123456"
+    order: chronological
+  - search:
+    key: "FILLER"
+    query: "type:other_video"
+    order: "shuffle"
+
+reset:
+  - wait_until: '8:00am'
+    tomorrow: false
+    rewind_on_reset: true
+
+playout:
+  - duration: "30 minutes"
+    content: "SOME_SHOW"
+    discard_attempts: 2
+    offline_tail: false
+
+  - epg_group: true
+    advance: false
+
+  - pad_to_next: 30
+    content: "FILLER"
+    filler_kind: postroll
+    trim: true
+
+  - epg_group: false
+
+  - repeat: true
+""";
+
+        string schemaFileName = Path.Combine(FileSystemLayout.ResourcesCacheFolder, "sequential-schedule.schema.json");
+
+        var fileSystem = new MockFileSystem();
+        fileSystem.Initialize()
+            .WithFile(schemaFileName).Which(f => f.HasStringContent(_schema));
+
+        var validator = new SequentialScheduleValidator(
+            fileSystem,
+            Substitute.For<ILogger<SequentialScheduleValidator>>());
+
+        bool result = await validator.ValidateSchedule(YAML, false);
+        result.ShouldBeTrue();
+    }
+
+    [CancelAfter(2_000)]
+    [Test]
+    public async Task ValidateSchedule_Should_Fail_Invalid_Schedule(CancellationToken cancellationToken)
+    {
+        const string YAML =
+            """
+            content:
+              - show:
+                key: "SOME_SHOW"
+                guids22:
+                  - source: "imdb"
+                    value: "tt123456"
+                order: chronological
+              - search:
+                key: "FILLER"
+                query: "type:other_video"
+                order: "shuffle"
+
+            reset:
+              - wait_until: '8:00am'
+                tomorrow: false
+                rewind_on_reset: true
+
+            playout:
+              - duration: "30 minutes"
+                content: "SOME_SHOW"
+                discard_attempts: 2
+                offline_tail: false
+
+              - epg_group: true
+                advance: false
+
+              - pad_to_next: 30
+                content: "FILLER"
+                filler_kind: postroll
+                trim: true
+
+              - epg_group: false
+
+              - repeat: true
+            """;
+
+        string schemaFileName = Path.Combine(FileSystemLayout.ResourcesCacheFolder, "sequential-schedule.schema.json");
+
+        var fileSystem = new MockFileSystem();
+        fileSystem.Initialize()
+            .WithFile(schemaFileName).Which(f => f.HasStringContent(_schema));
+
+        var validator = new SequentialScheduleValidator(
+            fileSystem,
+            Substitute.For<ILogger<SequentialScheduleValidator>>());
+
+        bool result = await validator.ValidateSchedule(YAML, false);
+        result.ShouldBeFalse();
+    }
+
+    [CancelAfter(2_000)]
+    [Test]
+    public async Task GetValidationMessages_With_Invalid_Schedule(CancellationToken cancellationToken)
+    {
+        const string YAML =
+            """
+            content:
+              - show:
+                key: "SOME_SHOW"
+                guids22:
+                  - source: "imdb"
+                    value: "tt123456"
+                order: chronological
+              - search:
+                key: "FILLER"
+                query: "type:other_video"
+                order: "shuffle"
+
+            reset:
+              - wait_until: '8:00am'
+                tomorrow: false
+                rewind_on_reset: true
+
+            playout:
+              - duration: "30 minutes"
+                content: "SOME_SHOW"
+                discard_attempts: 2
+                offline_tail: false
+
+              - epg_group: true
+                advance: false
+
+              - pad_to_next: 30
+                content: "FILLER"
+                filler_kind: postroll
+                trim: true
+
+              - epg_group: false
+
+              - repeat: true
+            """;
+
+        string schemaFileName = Path.Combine(FileSystemLayout.ResourcesCacheFolder, "sequential-schedule.schema.json");
+
+        var fileSystem = new MockFileSystem();
+        fileSystem.Initialize()
+            .WithFile(schemaFileName).Which(f => f.HasStringContent(_schema));
+
+        var validator = new SequentialScheduleValidator(
+            fileSystem,
+            Substitute.For<ILogger<SequentialScheduleValidator>>());
+
+        IList<string> result = await validator.GetValidationMessages(YAML, false);
+        result.ShouldNotBeNull();
+        result.Count.ShouldBe(1);
+        result[0].ShouldContain("line 3");
+        result[0].ShouldContain("position 5");
+    }
+}
diff --git a/ErsatzTV.Infrastructure/Scheduling/SequentialScheduleValidator.cs b/ErsatzTV.Infrastructure/Scheduling/SequentialScheduleValidator.cs
index 1b5e6421c..3062aec4e 100644
--- a/ErsatzTV.Infrastructure/Scheduling/SequentialScheduleValidator.cs
+++ b/ErsatzTV.Infrastructure/Scheduling/SequentialScheduleValidator.cs
@@ -1,4 +1,5 @@
 using System.Globalization;
+using System.IO.Abstractions;
 using System.Text.Json;
 using ErsatzTV.Core;
 using ErsatzTV.Core.Interfaces.Scheduling;
@@ -11,7 +12,8 @@ using JsonSerializer = System.Text.Json.JsonSerializer;
 
 namespace ErsatzTV.Infrastructure.Scheduling;
 
-public class SequentialScheduleValidator(ILogger<SequentialScheduleValidator> logger) : ISequentialScheduleValidator
+public class SequentialScheduleValidator(IFileSystem fileSystem, ILogger<SequentialScheduleValidator> logger)
+    : ISequentialScheduleValidator
 {
     public async Task<bool> ValidateSchedule(string yaml, bool isImport)
     {
@@ -20,7 +22,7 @@ public class SequentialScheduleValidator(ILogger<SequentialScheduleValidator> lo
             string schemaFileName = Path.Combine(
                 FileSystemLayout.ResourcesCacheFolder,
                 isImport ? "sequential-schedule-import.schema.json" : "sequential-schedule.schema.json");
-            using StreamReader sr = File.OpenText(schemaFileName);
+            using StreamReader sr = fileSystem.File.OpenText(schemaFileName);
             await using var reader = new JsonTextReader(sr);
             var schema = JSchema.Load(reader);
 
@@ -63,7 +65,7 @@ public class SequentialScheduleValidator(ILogger<SequentialScheduleValidator> lo
             string schemaFileName = Path.Combine(
                 FileSystemLayout.ResourcesCacheFolder,
                 isImport ? "sequential-schedule-import.schema.json" : "sequential-schedule.schema.json");
-            using StreamReader sr = File.OpenText(schemaFileName);
+            using StreamReader sr = fileSystem.File.OpenText(schemaFileName);
             await using var reader = new JsonTextReader(sr);
             var schema = JSchema.Load(reader);