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Programming language: Go
Tags: Testing     Testing Frameworks    

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README

Go Suite

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The support for test suites for Golang 1.7 and later.

Golang 1.7 featured Subtests that allowed you to group tests in order to share common setup and teardown logic. While that was a great addition to the testing package, it was a bit clunky syntactically. The GoSuite package leverages Golang's 1.7 Subtests feature, defines a simple TestSuite interface and runs test cases inside of them keeping setup/teardown logic for the whole suite and for single cases in place.

Quick Start

To start with, create a struct with the four methods implemented:

type MyTestSuite struct {
    // DB connection
    // etc
}

// SetUpSuite is called once before the very first test in suite runs
func (s *MyTestSuite) SetUpSuite() {
}

// TearDownSuite is called once after thevery last test in suite runs
func (s *MyTestSuite) TearDownSuite() {
}

// SetUp is called before each test method
func (s *MyTestSuite) SetUp() {
}

// TearDown is called after each test method
func (s *MyTestSuite) TearDown() {
}

Then add one or more test methods to it, prefixing them with Test prefix:

func (s *MyTestSuite) TestMyFirstTestCase(t *testing.T) {
    if !someJob {
        t.Fail("Unexpected failure!")
    }
}

Almost done! The only piece that remains is to run the suite! You do this by calling the Run method. Note, the enclosing TestIt method is a normal testing method you usually write in Go, nothing fancy at all!

func TestIt(t *testing.T) {
    Run(t, &MyTestSuite{})
}

Installation

To install Go Suite, use go get:

go get github.com/pavlo/gosuite

The import the pavlo/gosuite package into your code like this:

package yours

import (
  "testing"
  "github.com/pavlo/gosuite"
)

...

Complete Example

The complete example is shown to help you to see the whole thing on the same page. Note, it leverages the Is package for assertions... the package is great though indeed it is not required to use with Go Suite. The example however demonstrates a slick technique making the assertion methods available on the suite itself!


import (
  "testing"
  "github.com/pavlo/gosuite"
)

type Suite struct {
    *is.Is
    setUpSuiteCalledTimes    int
    tearDownSuiteCalledTimes int
    setUpCalledTimes         int
    tearDownUpCalledTimes    int
}

func (s *Suite) SetUpSuite() {
    s.setUpSuiteCalledTimes++
}

func (s *Suite) TearDownSuite() {
    s.tearDownSuiteCalledTimes++
}

func (s *Suite) SetUp() {
    s.setUpCalledTimes++
}

func (s *Suite) TearDown() {
    s.tearDownUpCalledTimes++
}

func TestIt(t *testing.T) {
    s := &Suite{Is: is.New(s.t)}
    gosuite.Run(t, s)

    s.Equal(1, s.setUpSuiteCalledTimes)
    s.Equal(1, s.tearDownSuiteCalledTimes)
    s.Equal(2, s.setUpCalledTimes)
    s.Equal(2, s.tearDownUpCalledTimes)
}

func (s *Suite) TestFirstTestMethod(t *testing.T) {
    s.Equal(1, s.setUpSuiteCalledTimes)
    s.Equal(0, s.tearDownSuiteCalledTimes)
    s.Equal(1, s.setUpCalledTimes)
    s.Equal(0, s.tearDownUpCalledTimes)
}

func (s *Suite) TestSecondTestMethod(t *testing.T) {
    s.Equal(1, s.setUpSuiteCalledTimes)
    s.Equal(0, s.tearDownSuiteCalledTimes)
    s.Equal(2, s.setUpCalledTimes)
    s.Equal(1, s.tearDownUpCalledTimes)
}

Running it with go test -v would emit this:

> go test -v

=== RUN   TestIt
=== RUN   TestIt/TestFirstTestMethod
=== RUN   TestIt/TestSecondTestMethod
--- PASS: TestIt (0.00s)
    --- PASS: TestIt/TestFirstTestMethod (0.00s)
    --- PASS: TestIt/TestSecondTestMethod (0.00s)
PASS
ok      github.com/pavlo/gosuite    0.009s
Success: Tests passed.

License

Go Suite is released under the MIT License.


*Note that all licence references and agreements mentioned in the gosuite README section above are relevant to that project's source code only.