Update Go version to ^1.23, the actions/setup-go
to v5, actions/checkout to v4 and
github.com/stretchr/testify to v1.9.0.
Add test cases for the following model
struct methods:
- New
- Close
- NewContext
- IsMultilingual
- Languages
Add test cases for the following context
struct methods:
- SetLanguage
- IsMultilingual
- Language
- Process
