chore: add test utils

Author: chiptus

go.mod

@@ -1,3 +1,5 @@
 module github.com/portainer/docker-compose-wrapper
 
 go 1.15
+
+require github.com/stretchr/testify v1.7.0 // indirect

go.sum

@@ -0,0 +1,10 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

wrapper_test.go

@@ -1,17 +1,29 @@
 package wrapper
 
 import (
+	"fmt"
+	"log"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
 	"testing"
 )
 
-func TestCommand(t *testing.T) {
+func setup(t *testing.T) *ComposeWrapper {
 	w, err := NewComposeWrapper("")
 	if err != nil {
 		t.Fatal(err)
 	}
 
+	return w
+}
+
+func TestCommand(t *testing.T) {
+	w := setup(t)
+
 	file := "docker-compose-test.yml"
-	_, err = w.Up(file, "", "", "")
+	_, err := w.Up(file, "", "", "")
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -22,3 +34,77 @@ func TestCommand(t *testing.T) {
 	}
 
 }
+
+const composeFile = `version: "3.9"
+services:
+  busybox:
+    image: "alpine:latest"
+    container_name: "compose_wrapper_test"`
+const composedContainerName = "compose_wrapper_test"
+
+type composeOptions struct {
+	filePath    string
+	url         string
+	envFile     string
+	projectName string
+}
+
+func createFile(dir, fileName, content string) (string, error) {
+	filePath := filepath.Join(dir, fileName)
+	f, err := os.Create(filePath)
+	if err != nil {
+		return "", err
+	}
+
+	f.WriteString(content)
+	f.Close()
+
+	return filePath, nil
+}
+
+func createEnvFile(dir, envFileContent string) (string, error) {
+	return createFile(dir, "stack.env", envFileContent)
+}
+
+func createComposeFile(dir, composeFileContent string) (string, error) {
+	return createFile(dir, "docmer-compose.yml", composeFileContent)
+}
+
+// func Test_UpAndDown(t *testing.T) {
+
+// 	stack, endpoint := setup(t)
+
+// 	w, err := NewComposeStackManager("", nil)
+// 	if err != nil {
+// 		t.Fatalf("Failed creating manager: %s", err)
+// 	}
+
+// 	err = w.Up(stack, endpoint)
+// 	if err != nil {
+// 		t.Fatalf("Error calling docker-compose up: %s", err)
+// 	}
+
+// 	if !containerExists(composedContainerName) {
+// 		t.Fatal("container should exist")
+// 	}
+
+// 	err = w.Down(stack, endpoint)
+// 	if err != nil {
+// 		t.Fatalf("Error calling docker-compose down: %s", err)
+// 	}
+
+// 	if containerExists(composedContainerName) {
+// 		t.Fatal("container should be removed")
+// 	}
+// }
+
+func containerExists(containerName string) bool {
+	cmd := exec.Command("docker", "ps", "-a", "-f", fmt.Sprintf("name=%s", containerName))
+
+	out, err := cmd.Output()
+	if err != nil {
+		log.Fatalf("failed to list containers: %s", err)
+	}
+
+	return strings.Contains(string(out), containerName)
+}