Added tests for ConstantSourceNode.

Author: KristofferStrube

src/KristofferStrube.Blazor.WebAudio/Options/ConstantSourceOptions.cs

@@ -11,6 +11,9 @@ public class ConstantSourceOptions
     /// <summary>
     /// The initial value for the <see cref="ConstantSourceNode.GetOffsetAsync"/> <see cref="AudioParam"/> of this node.
     /// </summary>
+    /// <remarks>
+    /// The default value is <c>1</c>.
+    /// </remarks>
     [JsonPropertyName("offset")]
     public float Offset { get; set; } = 1;
 }

tests/IntegrationTests/AudioNodeTests/ConstantSourceNodeTest.cs

@@ -1,9 +1,34 @@
-namespace IntegrationTests.AudioNodeTests;
+using FluentAssertions;
+
+namespace IntegrationTests.AudioNodeTests;
 
 public class ConstantSourceNodeTest : AudioNodeTest<ConstantSourceNode>
 {
     public override async Task<ConstantSourceNode> GetDefaultInstanceAsync()
     {
         return await ConstantSourceNode.CreateAsync(JSRuntime, AudioContext);
     }
+
+    [Test]
+    [TestCase(1)]
+    [TestCase(-0.5f)]
+    public async Task GetOffsetAsync_ShouldRetrieveOffsetParameter(float offset)
+    {
+        // Arrange
+        await using ConstantSourceNode node = await ConstantSourceNode.CreateAsync(JSRuntime, AudioContext, new()
+        {
+            Offset = offset
+        });
+
+        // Act
+        await using AudioParam offsetParameter = await node.GetOffsetAsync();
+
+        // Assert
+        float readOffset = await offsetParameter.GetValueAsync();
+        _ = readOffset.Should().Be(offset);
+
+        await offsetParameter.SetValueAsync(offset + 1);
+        readOffset = await offsetParameter.GetValueAsync();
+        _ = readOffset.Should().Be(offset + 1);
+    }
 }