我正在为咖啡店进行网站预订以进行学习,并且需要对正面和背面进行单元测试。 对于前端,我正在使用AVA进行测试,但是我从没做过测试,而且我不知道该怎么做。我的期末考试是星期四,我需要加快我的单位速度。
我从哪里开始?
答案 0 :(得分:0)
drop table if exists tutors,tutors_subjects;
CREATE TABLE tutors(
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
name VARCHAR(30) NOT NULL)
;
CREATE TABLE tutors_subjects(
sub_id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
tutor_id INT(6) NOT NULL,
subject VARCHAR(30) NOT NULL);
insert into tutors (name) values
('aaa'),('bbb'),('ccc');
insert into tutors_subjects (tutor_id,subject) values
(1,'s cs '),(2,' cs '),(3,'s3');
SELECT *
FROM tutors
JOIN tutors_subjects ON tutors.id = tutors_subjects.tutor_id
WHERE tutors_subjects.subject LIKE '% CS %';
+----+------+--------+----------+---------+
| id | name | sub_id | tutor_id | subject |
+----+------+--------+----------+---------+
| 1 | aaa | 1 | 1 | s cs |
| 2 | bbb | 2 | 2 | cs |
+----+------+--------+----------+---------+
2 rows in set (0.00 sec)