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package file
import (
"bytes"
"fmt"
"io"
"os"
"sync"
"testing"
"github.com/kong/deck/state"
"github.com/kong/go-kong/kong"
"github.com/stretchr/testify/assert"
)
func captureOutput(f func()) string {
reader, writer, err := os.Pipe()
if err != nil {
panic(err)
}
stdout := os.Stdout
stderr := os.Stderr
defer func() {
os.Stdout = stdout
os.Stderr = stderr
}()
os.Stdout = writer
os.Stderr = writer
out := make(chan string)
wg := new(sync.WaitGroup)
wg.Add(1)
go func() {
var buf bytes.Buffer
wg.Done()
io.Copy(&buf, reader)
out <- buf.String()
}()
wg.Wait()
f()
writer.Close()
return <-out
}
func TestWriteKongStateToStdoutEmptyState(t *testing.T) {
var ks, _ = state.NewKongState()
var filename = "-"
assert := assert.New(t)
assert.Equal("-", filename)
assert.NotEmpty(t, ks)
// YAML
output := captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Workspace: "foo",
Filename: filename,
FileFormat: YAML,
})
})
assert.Equal("_format_version: \"1.1\"\n_workspace: foo\n", output)
// JSON
output = captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Workspace: "foo",
Filename: filename,
FileFormat: JSON,
})
})
expected := `{
"_format_version": "1.1",
"_workspace": "foo"
}`
assert.Equal(expected, output)
}
func TestWriteKongStateToStdoutStateWithOneService(t *testing.T) {
var ks, _ = state.NewKongState()
var filename = "-"
assert := assert.New(t)
var service state.Service
service.ID = kong.String("first")
service.Host = kong.String("example.com")
service.Name = kong.String("my-service")
ks.Services.Add(service)
// YAML
output := captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Filename: filename,
FileFormat: YAML,
})
})
expected := fmt.Sprintf("_format_version: \"1.1\"\nservices:\n- host: %s\n name: %s\n", *service.Host, *service.Name)
assert.Equal(expected, output)
// JSON
output = captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Workspace: "foo",
Filename: filename,
FileFormat: JSON,
})
})
expected = `{
"_format_version": "1.1",
"_workspace": "foo",
"services": [
{
"host": "example.com",
"name": "my-service"
}
]
}`
assert.Equal(expected, output)
}
func TestWriteKongStateToStdoutStateWithOneServiceOneRoute(t *testing.T) {
var ks, _ = state.NewKongState()
var filename = "-"
assert := assert.New(t)
var service state.Service
service.ID = kong.String("first")
service.Host = kong.String("example.com")
service.Name = kong.String("my-service")
ks.Services.Add(service)
var route state.Route
route.Name = kong.String("my-route")
route.ID = kong.String("first")
route.Hosts = kong.StringSlice("example.com", "demo.example.com")
route.Service = &kong.Service{
ID: kong.String(*service.ID),
Name: kong.String(*service.Name),
}
ks.Routes.Add(route)
// YAML
output := captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Filename: filename,
FileFormat: YAML,
})
})
expected := fmt.Sprintf(`_format_version: "1.1"
services:
- host: %s
name: %s
routes:
- hosts:
- %s
- %s
name: %s
`, *service.Host, *service.Name, *route.Hosts[0], *route.Hosts[1], *route.Name)
assert.Equal(expected, output)
// JSON
output = captureOutput(func() {
KongStateToFile(ks, WriteConfig{
Workspace: "foo",
Filename: filename,
FileFormat: JSON,
})
})
expected = `{
"_format_version": "1.1",
"_workspace": "foo",
"services": [
{
"host": "example.com",
"name": "my-service",
"routes": [
{
"hosts": [
"example.com",
"demo.example.com"
],
"name": "my-route"
}
]
}
]
}`
assert.Equal(expected, output)
}
func Test_addExtToFilename(t *testing.T) {
type args struct {
filename string
format string
}
tests := []struct {
name string
args args
want string
}{
{
args: args{
filename: "foo",
format: "yolo",
},
want: "foo.yolo",
},
{
args: args{
filename: "foo.json",
format: "yolo",
},
want: "foo.json",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := addExtToFilename(tt.args.filename, tt.args.format); got != tt.want {
t.Errorf("addExtToFilename() = %v, want %v", got, tt.want)
}
})
}
}
|
