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config_test.go
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config_test.go
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package main
import (
// "fmt"
"errors"
"fmt"
"os"
"testing"
"github.com/spf13/afero"
"github.com/stretchr/testify/assert"
)
// Setup
var (
mockFS afero.Fs = afero.NewMemMapFs()
)
func init() {
emptyConfig := ""
noChannelsConfig := "---\ngroup_channels:"
passConfig := `---
group_channels:
chan1:
slack_channel: "#chan1"
slack_channel_id: "AAAAAAAA"
chan2:
slack_channel: "#chan2"
slack_channel_id: "BBBBBBBB"
`
err := afero.WriteFile(mockFS, "empty.yaml", []byte(emptyConfig), os.ModePerm)
if err != nil {
fmt.Println("error setting up mock filesystem.")
}
err = afero.WriteFile(mockFS, "no-channels.yaml", []byte(noChannelsConfig), os.ModePerm)
if err != nil {
fmt.Println("error setting up mock filesystem.")
}
err = afero.WriteFile(mockFS, "pass.yaml", []byte(passConfig), os.ModePerm)
if err != nil {
fmt.Println("error setting up mock filesystem.")
}
}
type MockFS struct {
}
func (o *MockFS) Open(name string) (file, error) {
file, err := mockFS.Open(name)
if err != nil {
return nil, err
}
return file, nil
}
func (o *MockFS) Stat(name string) (os.FileInfo, error) {
stat, err := mockFS.Stat(name)
if err != nil {
return nil, err
}
return stat, nil
}
// Tests
func TestLoadConfig(t *testing.T) {
mockFS := &MockFS{}
type test struct {
path string
wantNumOfChannels int
wantChannels map[string]GroupChannel
err error
}
tests := []test{
{
path: "pass.yaml",
wantNumOfChannels: 2,
wantChannels: map[string]GroupChannel{
"chan1": {SlackChannel: "#chan1", SlackChannelID: "AAAAAAAA"},
"chan2": {SlackChannel: "#chan2", SlackChannelID: "BBBBBBBB"},
},
err: nil,
},
{
path: "empty.yaml",
wantNumOfChannels: 0,
wantChannels: nil,
err: errors.New("'empty.yaml' configuration file is empty."),
},
{
path: "no-channels.yaml",
wantNumOfChannels: 0,
wantChannels: nil,
err: nil,
},
{
path: "fail.yaml",
wantNumOfChannels: 0,
wantChannels: nil,
err: errors.New("open fail.yaml: file does not exist"),
},
}
for _, tc := range tests {
c := &Config{ConfigPath: tc.path}
err := c.LoadConfig(mockFS)
if err != nil {
assert.Equal(t, err.Error(), tc.err.Error())
} else {
assert.Equal(t, len(c.GroupChannels), tc.wantNumOfChannels)
assert.Equal(t, c.GroupChannels, tc.wantChannels)
}
}
}
func TestValidateConfigPath(t *testing.T) {
mockFS := &MockFS{}
type test struct {
path string
err string
}
tests := []test{
{path: "pass.yaml", err: ""},
{path: "empty.yaml", err: "'empty.yaml' configuration file is empty."},
{path: "no-channels.yaml", err: ""},
{path: "fail.yaml", err: "open fail.yaml: file does not exist"},
}
for _, tc := range tests {
c := &Config{ConfigPath: tc.path}
err := c.LoadConfig(mockFS)
if err != nil {
assert.Equal(t, err.Error(), tc.err)
} else {
assert.Nil(t, err)
}
}
}