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A test suite for Buffalo applications

suite 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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# Suite

[![Standard Test](https://github.com/gobuffalo/suite/actions/workflows/standard-go-test.yml/badge.svg)](https://github.com/gobuffalo/suite/actions/workflows/standard-go-test.yml)
[![Go Reference](https://pkg.go.dev/badge/github.com/gobuffalo/suite/v4.svg)](https://pkg.go.dev/github.com/gobuffalo/suite/v4)

Suite is a package meant to make testing [gobuffalo.io](http://gobuffalo.io) applications easier.

## Setup

This is the entry point into your unit testing suite. The `Test_ActionSuite(t *testing.T)` function is
compatible with the `go test` command, and it should:

- Create and configure your new test suite instance (`ActionSuite` in this case)
- Call `suite.Run` with the `*testing.T` passed by the Go testing system, and your new `ActionSuite` instance

```go
package actions_test

import (
    "testing"

"github.com/gobuffalo/suite/v4"
    "github.com/gobuffalo/toodo/actions"
)

type ActionSuite struct {
    *suite.Action
}

func Test_ActionSuite(t *testing.T) {
    as := &ActionSuite{suite.NewAction(actions.App())}
    suite.Run(t, as)
}
```

## Usage

This is where you write your actual test logic. The rules for test names are similar, but not the same, as with `go test`:

- Each test is a method on your `*ActionSuite`
- Test method names should start with `Test` (note the upper case `T`)
- Test methods should have no arguments

A few additional notes:

- To avoid race conditions on the testing database, always use the `ActionSuite` variable called `DB` to access the database (not your production app's database)
- You can access the raw `*testing.T` value if needed with `as.T()`
- `ActionSuite` has support for [`testify`](https://github.com/stretchr/testify)'s [`require` package](https://godoc.org/github.com/stretchr/testify/require) and [`assert` package](https://godoc.org/github.com/stretchr/testify/assert)
- ... So try to use one of those instead packages of using the raw methods on the `*testing.T`
- The default database that `suite` will connect to is called `testing` in your [database.yml](https://github.com/markbates/pop#connecting-to-databases)

```go
package actions_test

import (
    "fmt"

"github.com/gobuffalo/toodo/models"
)

func (as *ActionSuite) Test_TodosResource_List() {
    todos := models.Todos{
        {Title: "buy milk"},
        {Title: "read a good book"},
    }
    for _, t := range todos {
        err := as.DB.Create(&t)
        as.NoError(err)
    }

res := as.HTML("/todos").Get()
    body := res.Body.String()
    for _, t := range todos {
        as.Contains(body, fmt.Sprintf("<h2>%s</h2>", t.Title))
    }
}

func (as *ActionSuite) Test_TodosResource_New() {
    res := as.HTML("/todos/new").Get()
    as.Contains(res.Body.String(), "<h1>New Todo</h1>")
}

func (as *ActionSuite) Test_TodosResource_Create() {
    todo := &models.Todo{Title: "Learn Go"}
    res := as.HTML("/todos").Post(todo)
    as.Equal(301, res.Code)
    as.Equal("/todos", res.Location())

err := as.DB.First(todo)
    as.NoError(err)
    as.NotZero(todo.ID)
    as.NotZero(todo.CreatedAt)
    as.Equal("Learn Go", todo.Title)
}

func (as *ActionSuite) Test_TodosResource_Create_Errors() {
    todo := &models.Todo{}
    res := as.HTML("/todos").Post(todo)
    as.Equal(422, res.Code)
    as.Contains(res.Body.String(), "Title can not be blank.")

c, err := as.DB.Count(todo)
    as.NoError(err)
    as.Equal(0, c)
}

func (as *ActionSuite) Test_TodosResource_Update() {
    todo := &models.Todo{Title: "Lern Go"}
    verrs, err := as.DB.ValidateAndCreate(todo)
    as.NoError(err)
    as.False(verrs.HasAny())

res := as.HTML("/todos/%s", todo.ID).Put(&models.Todo{ID: todo.ID, Title: "Learn Go"})
    as.Equal(200, res.Code)

err = as.DB.Reload(todo)
    as.NoError(err)
    as.Equal("Learn Go", todo.Title)
}
```

## Fixtures (Test Data)

Often it is useful to load a series of data into the database at the start of the test to make testing easier. For example, you need to have a user in the database to log a person into the application, or you need some data in the database to test destroying that data. Fixtures let us solve these problems easily.

### Using Fixtures

First you need to setup your test suite to use fixtures. You can do this by using `suite.NewActionWithFixtures` or `suite.NewModelWithFixtures` methods to create new test suites that take an `fs.FS` pointing to where the files for this suite live.

```go
package actions

import (
    "os"
    "testing"

"github.com/gobuffalo/suite/v4"
)

type ActionSuite struct {
    *suite.Action
}

func Test_ActionSuite(t *testing.T) {
    action, err := suite.NewActionWithFixtures(App(), os.DirFS("../fixtures"))
    if err != nil {
        t.Fatal(err)
    }

as := &ActionSuite{
        Action: action,
    }
    suite.Run(t, as)
}
```

Once your suite is set up, you can create `N` numbers of `*.toml` files in the directory you've chosen for your fixtures, in this example, `../fixtures`.

### Example Fixture File

```toml
[[scenario]]
name = "lots of widgets"

[[scenario.table]]
    name = "widgets"

[[scenario.table.row]]
      id = "<%= uuidNamed("widget") %>"
      name = "This is widget #1"
      body = "some widget body"
      created_at = "<%= now() %>"
      updated_at = "<%= now() %>"

[[scenario.table.row]]
      id = "<%= uuid() %>"
      name = "This is widget #2"
      body = "some widget body"
      created_at = "<%= now() %>"
      updated_at = "<%= now() %>"

[[scenario.table]]
    name = "users"

[[scenario.table.row]]
      id = "<%= uuid() %>"
      name = "Mark Bates"
      admin = true
      price = 19.99
      widget_id = "<%= uuidNamed("widget") %>"
      created_at = "<%= now() %>"
      updated_at = "<%= now() %>"
```

#### Helper Methods

The `*.toml` files all get run through [https://github.com/gobuffalo/plush](https://github.com/gobuffalo/plush) before they're decoded, so you can make use of the helpful helper methods that ship with Plush.

We've also add a couple of useful helpers for you as well:

- `uuid()` - returns a new `github.com/gobuffalo/uuid.UUID`
- `now()` - returns `time.Now()`
- `nowAdd(s)` and `nowSub(s)` - similar to `now()` but `s` amount of seconds is added or substracted, respectively, from the return value
- `uuidNamed(name)` - will attempt to return a previously declared UUID with that name, useful, for relations/associations. If there was one that wasn't defined with that name, a new one will be created.
- `hash(string, opts)` - will create the hashed value of the string (useful for creating a password), you can define the cost as an opts (the default is `bcrypt.DefaultCost`)

### Using in Tests

In your suite tests you need to call the `LoadFixture` method giving it the name of the fixtures you would like to use for this test.

```go
func (as *ActionSuite) Test_WidgetsResource_List() {
    as.LoadFixture("lots of widgets")
    res := as.HTML("/widgets").Get()

body := res.Body.String()
    as.Contains(body, "widget #1")
    as.Contains(body, "widget #2")
}
```

### FAQs

- _Can I call `LoadFixture` more than once in a test?_ - Absolutely! Call it as many times as you want!
- _Can I load multiple rows into a table in one scenario?_ - Absolutely!
- _Can I load data into multiple tables in one scenario?_ - Absolutely!
- _Will it load all my fixtures?_ - No, you have to load specific scenarios, so don't be afraid to create lots of scenarios and only call the ones you need per test.
- _Will this pollute my database, and how do I clear data between tests?_ - No need to worry, the suite will truncate any data in your database between test runs, so you never have to worry about it.

suite

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