Shift-Left Testing and Continuous Automation Practices in International E-commerce

DeWu (得物) aims to build a global next‑generation fashion e‑commerce community. As its international business expands, the complexity and uncertainty of business scenarios increase, making high‑quality, high‑efficiency delivery critical.

The article introduces the concept of “shift‑left testing”, which moves testing earlier in the development lifecycle and drives it by business value. It describes the business background of mapping European shoe sizes to DeWu’s standard size, the associated business value, user behaviors, and the impact on product flow.

Key practices include:

Left‑shift testing: business‑driven test design, continuous testing throughout delivery, and right‑shift analysis of production data.

Continuous testing: integrating test analysis, strategy, and high‑efficiency automation to provide rapid feedback.

Automation framework: Java + SpringBoot + JUnit5 with reflection‑based annotations to reduce maintenance cost.

Code‑coverage analysis: using automated smoke tests, one‑round tests, and integration tests to monitor coverage and guide defect fixing.

The implementation workflow covers design, script creation, execution, reporting, and defect tracking, illustrated with several diagrams (omitted here). A sample MQ section shows no new MQ changes:

【MQ】

# 无MQ新增&变更

Guidelines for automation include coordinating with developers during the development week, executing smoke tests at the test‑ready stage, expanding to one‑round and BVT tests, and integrating coverage‑driven exploratory testing.

In summary, the shift‑left and automation practices adopted by DeWu’s international testing team improve test efficiency, reduce manual effort, and ensure product quality while aligning testing with business value.