Add files via upload

internal/vision/client_test.go

@@ -0,0 +1,12 @@
+package vision
+
+import "testing"
+
+func TestLooksLikeCaptchaQuestion(t *testing.T) {
+	if !looksLikeCaptchaQuestion("识别验证码，只输出字符") {
+		t.Fatal("expected captcha hint")
+	}
+	if looksLikeCaptchaQuestion("描述登录页布局") {
+		t.Fatal("expected non-captcha")
+	}
+}