package service

import "testing"

func TestCrossValidate(t *testing.T) {
	cases := []struct {
		name       string
		aiClass    string
		lampResult string
		wantOK     bool
	}{
		{"AI异常+LAMP阳性 一致", "sick", "positive", true},
		{"AI健康+LAMP阴性 一致", "healthy", "negative", true},
		{"AI异常+LAMP阴性 不一致", "sick", "negative", false},
		{"AI健康+LAMP阳性 不一致", "healthy", "positive", false},
		{"LAMP无效 不一致", "sick", "invalid", false},
		{"无AI记录 不一致", "", "positive", false},
	}
	for _, c := range cases {
		ok, reason := CrossValidate(c.aiClass, c.lampResult, []string{"核型多角体病"})
		if ok != c.wantOK {
			t.Errorf("%s: ok=%v, want %v（原因 %s）", c.name, ok, c.wantOK, reason)
		}
		if reason == "" {
			t.Errorf("%s: 缺少原因说明", c.name)
		}
	}
}

func TestAIClassFromDetections(t *testing.T) {
	if got := AIClassFromDetections(nil); got != "" {
		t.Errorf("空检测应为空，实际 %s", got)
	}
	if got := AIClassFromDetections([]AIDetection{{ClassName: "healthy", Confidence: 0.9}}); got != "healthy" {
		t.Errorf("全健康应为 healthy，实际 %s", got)
	}
	if got := AIClassFromDetections([]AIDetection{{ClassName: "healthy"}, {ClassName: "sick", Confidence: 0.6}}); got != "sick" {
		t.Errorf("含 sick 应为 sick，实际 %s", got)
	}
}