抽屉优化

db/tool_usage_test.go

@@ -0,0 +1,44 @@
+package db
+
+import "testing"
+
+func TestToolUsageLedger(t *testing.T) {
+	d, err := Open(testDSN(t))
+	if err != nil {
+		t.Skipf("postgres unavailable (%v) - skipping", err)
+	}
+	defer d.Close()
+
+	const (
+		toolA = "zz_test_tool_usage_a"
+		toolB = "zz_test_tool_usage_b"
+	)
+	cleanup := func() {
+		_, _ = d.Exec(`DELETE FROM tool_usage WHERE tool_key IN ($1,$2)`, toolA, toolB)
+	}
+	cleanup()
+	defer cleanup()
+
+	rows := []*ToolUsage{
+		{ToolKey: toolA, AgentKey: "worker", TaskID: 991, ExplorationID: 5, IntentID: 7},
+		{ToolKey: toolA, AgentKey: "planner", TaskID: 992, ExplorationID: 6},
+		{ToolKey: toolA, AgentKey: "chatbot", SessionID: "conv-1"},
+		{ToolKey: toolB, AgentKey: "worker", TaskID: 991},
+	}
+	for _, row := range rows {
+		if err := d.InsertToolUsage(row); err != nil {
+			t.Fatalf("insert %s: %v", row.ToolKey, err)
+		}
+	}
+
+	counts, err := d.ToolUsageCounts()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if got := counts[toolA]; got != 3 {
+		t.Errorf("%s calls: want 3, got %d", toolA, got)
+	}
+	if got := counts[toolB]; got != 1 {
+		t.Errorf("%s calls: want 1, got %d", toolB, got)
+	}
+}