Add config tests

client/config.go

@@ -34,8 +34,8 @@ func NewConfig(version, project, buildType string) *Config {
 
 // Write writes configuration to Inertia config file at path. Optionally
 // takes io.Writers.
-func (config *Config) Write(path string, writers ...io.Writer) error {
-	if len(writers) == 0 && path == "" {
+func (config *Config) Write(filePath string, writers ...io.Writer) error {
+	if len(writers) == 0 && filePath == "" {
 		return errors.New("nothing to write to")
 	}
 
@@ -47,15 +47,15 @@ func (config *Config) Write(path string, writers ...io.Writer) error {
 	}
 
 	// If path is given, attach file writer
-	if path != "" {
-		w, err := os.OpenFile(path, os.O_WRONLY, os.ModePerm)
+	if filePath != "" {
+		w, err := os.OpenFile(filePath, os.O_WRONLY|os.O_CREATE, os.ModePerm)
 		if err != nil {
 			return err
 		}
 
 		// Overwrite file if file exists
-		if _, err := os.Stat(path); !os.IsNotExist(err) {
-			ioutil.WriteFile(path, []byte(""), 0644)
+		if _, err := os.Stat(filePath); !os.IsNotExist(err) {
+			ioutil.WriteFile(filePath, []byte(""), 0644)
 		} else if err != nil {
 			return err
 		}

client/config_test.go

@@ -1,11 +1,68 @@
 package client
 
 import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 )
 
+func TestNewConfig(t *testing.T) {
+	cfg := NewConfig("test", "best-project", "docker-compose")
+	assert.Equal(t, cfg.Version, "test")
+}
+
+func TestWriteFailed(t *testing.T) {
+	cfg := NewConfig("test", "best-project", "docker-compose")
+	err := cfg.Write("")
+	assert.NotNil(t, err)
+	assert.Contains(t, "nothing to write to", err.Error())
+}
+
+func TestWriteToPath(t *testing.T) {
+	configPath := "/test-config.toml"
+	cfg := NewConfig("test", "best-project", "docker-compose")
+
+	cwd, err := os.Getwd()
+	assert.Nil(t, err)
+	absPath := filepath.Join(cwd, configPath)
+	defer os.RemoveAll(absPath)
+
+	err = cfg.Write(absPath)
+	assert.Nil(t, err)
+
+	writtenConfigContents, err := ioutil.ReadFile(absPath)
+	assert.Nil(t, err)
+	assert.Contains(t, string(writtenConfigContents), "best-project")
+	assert.Contains(t, string(writtenConfigContents), "docker-compose")
+}
+
+func TestWriteToWritersAndFile(t *testing.T) {
+	configPath := "/test-config.toml"
+	cfg := NewConfig("test", "best-project", "docker-compose")
+
+	cwd, err := os.Getwd()
+	assert.Nil(t, err)
+	absPath := filepath.Join(cwd, configPath)
+	defer os.RemoveAll(absPath)
+
+	buffer1 := bytes.NewBuffer(nil)
+	buffer2 := bytes.NewBuffer(nil)
+
+	err = cfg.Write(absPath, buffer1, buffer2)
+	assert.Nil(t, err)
+
+	writtenConfigContents, err := ioutil.ReadFile(absPath)
+	assert.Nil(t, err)
+	assert.Contains(t, string(writtenConfigContents), "best-project")
+	assert.Contains(t, string(writtenConfigContents), "docker-compose")
+	assert.Contains(t, buffer1.String(), "best-project")
+	assert.Contains(t, buffer2.String(), "best-project")
+}
+
 func TestConfigGetRemote(t *testing.T) {
 	config := &Config{Remotes: make([]*RemoteVPS, 0)}
 	testRemote := &RemoteVPS{