test: Add ValidatorServiceTest

sdk/node/Libplanet.Node.Tests/Services/ValidatorServiceTest.cs

@@ -0,0 +1,42 @@
+using Libplanet.Node.Options;
+using Libplanet.Node.Services;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Options;
+
+namespace Libplanet.Node.Tests.Services;
+
+public class ValidatorServiceTest
+{
+    [Fact]
+    public void Enable_Test()
+    {
+        var settings = new Dictionary<string, string?>
+        {
+            [$"{SwarmOptions.Position}:{nameof(SwarmOptions.IsEnabled)}"] = "true",
+            [$"{ValidatorOptions.Position}:{nameof(ValidatorOptions.IsEnabled)}"] = "true",
+        };
+        var serviceProvider = TestUtility.CreateServiceProvider(settings);
+        var validatorService = serviceProvider.GetRequiredService<IValidatorService>();
+        Assert.NotNull(validatorService);
+    }
+
+    [Fact]
+    public void Enable_WithoutSwarm_ThrowTest()
+    {
+        var settings = new Dictionary<string, string?>
+        {
+            [$"{ValidatorOptions.Position}:{nameof(ValidatorOptions.IsEnabled)}"] = "true",
+        };
+        var serviceProvider = TestUtility.CreateServiceProvider(settings);
+        Assert.Throws<OptionsValidationException>(
+            serviceProvider.GetRequiredService<IValidatorService>);
+    }
+
+    [Fact]
+    public void Disable_ThrowTest()
+    {
+        var serviceProvider = TestUtility.CreateServiceProvider();
+        Assert.ThrowsAny<InvalidOperationException>(
+            serviceProvider.GetRequiredService<ISwarmService>);
+    }
+}