diff --git a/tests/Gpulse.WCT.DataAnalyzer.Tests/Commands/AnalyzeCommandTests.cs b/tests/Gpulse.WCT.DataAnalyzer.Tests/Commands/AnalyzeCommandTests.cs
index 8f5dbfc..1960c7d 100644
--- a/tests/Gpulse.WCT.DataAnalyzer.Tests/Commands/AnalyzeCommandTests.cs
+++ b/tests/Gpulse.WCT.DataAnalyzer.Tests/Commands/AnalyzeCommandTests.cs
@@ -3,6 +3,68 @@ namespace Gpulse.WCT.DataAnalyzer.Tests.Commands;
 [TestFixture]
 public class AnalyzeCommandTests : CommandTestBase
 {
+    /// <summary>
+    /// 真实产线 .DAT：含 35 条两行 Ploss（1 条 FOD），全部恒等式成立，
+    /// 余量与 delta_p' 反解在真实数据上应当与手算一致。
+    /// 直接指向仓库根的 Resources 目录（gitignored，但本地存在）；CI 无此文件则跳过。
+    /// </summary>
+    [Test]
+    public async Task Analyze_Ploss_RealVivoFile_ReportsSummary()
+    {
+        var file = ResolveResourcesFile(
+            "C车-单充快速成型件-A03-V55-vivo iQOD12 Pro-20250519-01.DAT");
+
+        var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "ploss", "--file", file);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(code, Is.EqualTo(0));
+            Assert.That(stdout, Does.Contain("=== Ploss Analysis:"));
+            Assert.That(stdout, Does.Contain("Total: 35 (TwoLine: 35, Legacy: 0), FOD: 1, Errors: 0"));
+            Assert.That(stdout, Does.Contain("Normal margin>2000: 34/34 (100.0%)"));
+            Assert.That(stdout, Does.Contain("FOD margin>2000: 1/1 (100.0%)"));
+            Assert.That(stdout, Does.Contain("Identity (delta_p = Tx - Rx - pow_loss - ploss): 35/35"));
+            // FOD 行（第 92 行）反解：delta_p'=18801+2001+(-18447)-1750=605
+            Assert.That(stdout, Does.Contain("delta_p'=605"));
+            Assert.That(stdout, Does.Contain("rewrite: pow_loss = 3394, delta_p = 605"));
+        });
+    }
+
+    /// <summary>
+    /// 真实产线 Qfod 标定：从「小米17功率上不去」文件中分离出纯手机与异物两段，
+    /// 新建两个符合 FileNameParser 约定的 .log 文件：
+    /// <list type="bullet">
+    ///   <item>pure：前 21 条稳定读数，ΔQ=3~5</item>
+    ///   <item>foreign：后 7 条衰减读数，ΔQ 为负值（-5 ~ -49）</item>
+    /// </list>
+    /// 阈值 = (pureMax + foreignMin) / 2 = (5 + -49) / 2 = -22
+    /// </summary>
+    [Test]
+    public async Task Analyze_Qfod_RealXiaomiFiles_ReportsCalibration()
+    {
+        var pure = ResolveResourcesFile("rapidMold-v1.5-hex2_5-Xiaomi17-qfod_pure-20250817-1.log");
+        var foreign = ResolveResourcesFile("rapidMold-v1.5-hex2_5-Xiaomi17-qfod_foreign-20250817-1.log");
+
+        var (code, stdout, _) = await Analyze().RunCaptureAsync(
+            "--type", "qfod", "--pure", pure, "--foreign", foreign);
+
+        Assert.Multiple(() =>
+        {
+            Assert.That(code, Is.EqualTo(0));
+            Assert.That(stdout, Does.Contain("=== Qfod Calibration ==="));
+            // Pure: 21 条，min=3 max=5 avg=4.0
+            Assert.That(stdout, Does.Contain("Pure phone"));
+            Assert.That(stdout, Does.Contain("count=21 min=3 max=5 avg=4.0"));
+            // Foreign: 7 条，min=-49 max=-5 avg=-27.7
+            Assert.That(stdout, Does.Contain("Foreign object"));
+            Assert.That(stdout, Does.Contain("count=7 min=-49 max=-5 avg=-27.7"));
+            // Threshold = (5 + -49) / 2 = -22
+            Assert.That(stdout, Does.Contain("Threshold = (pureMax + foreignMin) / 2 = (5 + -49) / 2 = -22"));
+            Assert.That(stdout, Does.Contain("pureMax - threshold = 27"));
+            Assert.That(stdout, Does.Contain("foreignMin - threshold = -27"));
+        });
+    }
+
     [Test]
     public async Task Analyze_NoType_ReturnsValidationError()
     {
@@ -66,7 +128,7 @@ public class AnalyzeCommandTests : CommandTestBase
         var dir = NewDir();
         var file = TestFixtures.WriteLegacyPlossLog(
             dir, "singleMold-v1.0-hex2_1-iPhone15-ploss_legacy-20260710-1.log",
-            (500, 3000, 0), (2500, 3000, 1));
+            new (int Ploss, int Threshold, int Fod)[] { (500, 3000, 0), (2500, 3000, 1) });
 
         var (code, stdout, _) = await Analyze().RunCaptureAsync("--type", "ploss", "--file", file);
 
@@ -146,4 +208,33 @@ public class AnalyzeCommandTests : CommandTestBase
 
         Assert.That(stdout, Does.Contain("FAILED"));
     }
+
+    /// <summary>
+    /// 在测试输出目录、以及从该目录向上一路找的仓库根 <c>Resources/</c> 中定位真实数据文件。
+    /// 找不到时调用 <see cref="Assert.Ignore(string)"/> 跳过，CI 无产线 .DAT 时不会让用例变红。
+    /// 与其它 fixture 模式不同：真实数据不复制到 bin/ —— 直接以相对仓库根的路径读取。
+    /// </summary>
+    private static string ResolveResourcesFile(string fileName)
+    {
+        // 1) 测试输出目录下的 Resources 副本（csproj 配置 CopyToOutputDirectory 时）
+        var candidates = new List<string>
+        {
+            Path.Combine(AppContext.BaseDirectory, "Resources", fileName),
+        };
+
+        // 2) 从测试输出目录向上回溯寻找仓库根的 Resources 目录
+        //    典型路径：…/tests/Gpulse.WCT.DataAnalyzer.Tests/bin/Debug/net8.0
+        //              → 仓库根在这之上 5 级
+        var dir = new DirectoryInfo(AppContext.BaseDirectory);
+        for (int up = 0; up < 8 && dir != null; up++, dir = dir.Parent)
+        {
+            var candidate = Path.Combine(dir.FullName, "Resources", fileName);
+            candidates.Add(candidate);
+            if (File.Exists(candidate))
+                return candidate;
+        }
+
+        Assert.Ignore($"真实数据文件不存在（已检索 {candidates.Count} 个候选路径）：{fileName}");
+        return null!; // 不会执行
+    }
 }