diff --git a/康康Tests/HealthExportDialogueTests.swift b/康康Tests/HealthExportDialogueTests.swift
index 3dea586..9248700 100644
--- a/康康Tests/HealthExportDialogueTests.swift
+++ b/康康Tests/HealthExportDialogueTests.swift
@@ -3,7 +3,7 @@ import Testing
 @testable import 康康
 
 struct HealthExportDialogueTests {
-    @Test func dialogueTranscriptKeepsTurnOrderAndRoles() {
+    @Test func dialogueTranscriptKeepsTurnOrderAndRoles() throws {
         let turns: [HealthExportDialogueTurn] = [
             .user("我最近头晕,帮我看看"),
             .assistant("我会结合你的指标和日记整理。"),
@@ -12,10 +12,13 @@ struct HealthExportDialogueTests {
 
         let transcript = HealthExportDialogueTurn.transcript(from: turns)
 
-        #expect(transcript.contains("患者: 我最近头晕,帮我看看"))
+        // 用户角色标签是「我」(产品红线:不出现「患者」,见 ca5a3fa)。
+        #expect(transcript.contains("我: 我最近头晕,帮我看看"))
         #expect(transcript.contains("康康: 我会结合你的指标和日记整理。"))
-        #expect(transcript.contains("患者: 重点看血压"))
-        #expect(transcript.range(of: "患者: 我最近头晕")!.lowerBound < transcript.range(of: "患者: 重点看血压")!.lowerBound)
+        #expect(transcript.contains("我: 重点看血压"))
+        let first = try #require(transcript.range(of: "我: 我最近头晕"))
+        let second = try #require(transcript.range(of: "我: 重点看血压"))
+        #expect(first.lowerBound < second.lowerBound)
     }
 
     @Test func dialogueTranscriptDropsEmptyTurns() {
@@ -27,8 +30,8 @@ struct HealthExportDialogueTests {
 
         let transcript = HealthExportDialogueTurn.transcript(from: turns)
 
-        #expect(!transcript.contains("患者:   "))
+        #expect(!transcript.contains("我:   "))
         #expect(transcript.contains("康康: 请补充想看的问题"))
-        #expect(transcript.contains("患者: 最近三个月"))
+        #expect(transcript.contains("我: 最近三个月"))
     }
 }
diff --git a/康康Tests/SeriesBucketTests.swift b/康康Tests/SeriesBucketTests.swift
index 83d38d6..42dec4a 100644
--- a/康康Tests/SeriesBucketTests.swift
+++ b/康康Tests/SeriesBucketTests.swift
@@ -18,14 +18,17 @@ struct SeriesBucketTests {
                   seriesKey: seriesKey)
     }
 
-    @Test func skipsIndicatorsWithoutSeriesKey() {
+    @Test func indicatorsWithoutSeriesKeyFoldIntoLabBucket() {
+        // 「lab 段」特性:无 seriesKey 的指标按 name+unit 归并,同名 ≥minPoints 次即成趋势。
         let now = Date()
         let items = [
-            makeIndicator(value: "5.0", capturedAt: now, seriesKey: nil),
+            makeIndicator(value: "5.0", capturedAt: now.addingTimeInterval(-86_400), seriesKey: nil),
             makeIndicator(value: "5.2", capturedAt: now, seriesKey: nil),
         ]
         let buckets = SeriesBucket.build(from: items)
-        #expect(buckets.isEmpty)
+        #expect(buckets.count == 1)
+        #expect(buckets.first?.kind == .lab)
+        #expect(buckets.first?.lines.first?.points.count == 2)
     }
 
     @Test func filtersOutSeriesWithFewerThanMinPoints() {