feat: Add Absolute Price Oscillator (APO) implementation and documentation

feat: Implement ADL (Accumulation/Distribution Line) indicator
2026-08-23 13:08:04 +00:00 · 2025-12-18 21:32:01 -08:00
parent 35e5571237
commit b5358091ae
32 changed files with 1925 additions and 55 deletions
@@ -0,0 +1,90 @@
+using Xunit;
+using TradingPlatform.BusinessLayer;
+using QuanTAlib;
+
+namespace QuanTAlib.Tests;
+
+public class AdlIndicatorTests
+{
+    [Fact]
+    public void AdlIndicator_Constructor_SetsDefaults()
+    {
+        var indicator = new AdlIndicator();
+
+        Assert.Equal("ADL - Accumulation/Distribution Line", indicator.Name);
+        Assert.True(indicator.SeparateWindow);
+        Assert.True(indicator.OnBackGround);
+        Assert.Equal(0, AdlIndicator.MinHistoryDepths);
+    }
+
+    [Fact]
+    public void AdlIndicator_ShortName_IsCorrect()
+    {
+        var indicator = new AdlIndicator();
+        Assert.Equal("ADL", indicator.ShortName);
+    }
+
+    [Fact]
+    public void AdlIndicator_SourceCodeLink_IsValid()
+    {
+        var indicator = new AdlIndicator();
+
+        Assert.Contains("github.com", indicator.SourceCodeLink);
+        Assert.Contains("Adl.Quantower.cs", indicator.SourceCodeLink);
+    }
+
+    [Fact]
+    public void AdlIndicator_Initialize_CreatesInternalAdl()
+    {
+        var indicator = new AdlIndicator();
+
+        // Initialize should not throw
+        indicator.Initialize();
+
+        // After init, line series should exist
+        Assert.Single(indicator.LinesSeries);
+    }
+
+    [Fact]
+    public void AdlIndicator_ProcessUpdate_HistoricalBar_ComputesValue()
+    {
+        var indicator = new AdlIndicator();
+        indicator.Initialize();
+
+        // Add historical data
+        var now = DateTime.UtcNow;
+        for (int i = 0; i < 20; i++)
+        {
+            indicator.HistoricalData.AddBar(now.AddMinutes(i), 100 + i, 110 + i, 90 + i, 105 + i, 1000);
+
+            // Process update for each bar to simulate history loading
+            var args = new UpdateArgs(UpdateReason.HistoricalBar);
+            indicator.ProcessUpdate(args);
+        }
+
+        // Line series should have a value
+        double val = indicator.LinesSeries[0].GetValue(0);
+        Assert.True(double.IsFinite(val));
+    }
+
+    [Fact]
+    public void AdlIndicator_ProcessUpdate_NewBar_ComputesValue()
+    {
+        var indicator = new AdlIndicator();
+        indicator.Initialize();
+
+        var now = DateTime.UtcNow;
+        for (int i = 0; i < 20; i++)
+        {
+            indicator.HistoricalData.AddBar(now.AddMinutes(i), 100 + i, 110 + i, 90 + i, 105 + i, 1000);
+        }
+
+        indicator.ProcessUpdate(new UpdateArgs(UpdateReason.HistoricalBar));
+
+        // Add new bar
+        indicator.HistoricalData.AddBar(now.AddMinutes(20), 120, 130, 110, 125, 1500);
+        indicator.ProcessUpdate(new UpdateArgs(UpdateReason.NewBar));
+
+        Assert.Equal(2, indicator.LinesSeries[0].Count);
+    }
+}