Description

Package suite contains logic for creating testing suite structs and running the methods on those structs as tests. The most useful piece of this package is that you can create setup/teardown methods on your testing suites, which will run before/after the whole suite or individual tests (depending on which interface(s) you implement).

A testing suite is usually built by first extending the built-in suite functionality from suite.Suite in testify. Alternatively, you could reproduce that logic on your own if you wanted (you just need to implement the TestingSuite interface from suite/interfaces.go).

After that, you can implement any of the interfaces in suite/interfaces.go to add setup/teardown functionality to your suite, and add any methods that start with "Test" to add tests. Methods that do not match any suite interfaces and do not begin with "Test" will not be run by testify, and can safely be used as helper methods.

Once you've built your testing suite, you need to run the suite (using suite.Run from testify) inside any function that matches the identity that "go test" is already looking for (i.e. func(*testing.T)).

Regular expression to select test suites specified command-line argument "-run". Regular expression to select the methods of test suites specified command-line argument "-m". Suite object has assertion methods.

A crude example:

// Basic imports
import (
    "testing"
    "github.com/stretchr/testify/assert"
    "github.com/stretchr/testify/suite"
)

// Define the suite, and absorb the built-in basic suite
// functionality from testify - including a T() method which
// returns the current testing context
type ExampleTestSuite struct {
    suite.Suite
    VariableThatShouldStartAtFive int
}

// Make sure that VariableThatShouldStartAtFive is set to five
// before each test
func (suite *ExampleTestSuite) SetupTest() {
    suite.VariableThatShouldStartAtFive = 5
}

// All methods that begin with "Test" are run as tests within a
// suite.
func (suite *ExampleTestSuite) TestExample() {
    assert.Equal(suite.T(), 5, suite.VariableThatShouldStartAtFive)
    suite.Equal(5, suite.VariableThatShouldStartAtFive)
}

// In order for 'go test' to run this suite, we need to create
// a normal test function and pass our suite to suite.Run
func TestExampleTestSuite(t *testing.T) {
    suite.Run(t, new(ExampleTestSuite))
}