package shared

import "testing"

func TestBlockWordHit(t *testing.T) {
	cases := []struct {
		name  string
		words string // CSV 词表
		text  string
		word  string
		hit   bool
	}{
		{name: "empty list", words: "", text: "广告", word: "", hit: false},
		{name: "empty text", words: "广告", text: "", word: "", hit: false},
		{name: "single hit", words: "广告,spam", text: "请勿发广告", word: "广告", hit: true},
		{name: "second word hit", words: "广告,spam", text: "buy now spam!", word: "spam", hit: true},
		{name: "no hit", words: "广告,spam", text: "你好呀", word: "", hit: false},
		{name: "dirty csv trims space", words: " 广告 , spam ", text: "这是广告", word: "广告", hit: true},
		{name: "dirty csv empty items skipped", words: "广告,,,spam", text: "spam again", word: "spam", hit: true},
		{name: "substring semantics", words: "抽奖", text: "参与抽奖活动", word: "抽奖", hit: true},
		{name: "chinese word bytes safe", words: "屏蔽", text: "你被屏蔽了吗", word: "屏蔽", hit: true},
	}
	for _, c := range cases {
		t.Run(c.name, func(t *testing.T) {
			gotWord, gotHit := BlockWordHit(c.words, c.text)
			if gotHit != c.hit || gotWord != c.word {
				t.Fatalf("BlockWordHit(%q, %q) = (%q, %v), want (%q, %v)",
					c.words, c.text, gotWord, gotHit, c.word, c.hit)
			}
		})
	}
}