Unit test composeFileFromScratch

Signed-off-by: Joffrey F <[email protected]>

Author: shin-

packager/init_test.go

@@ -0,0 +1,29 @@
+package packager
+
+import (
+    "github.com/gotestyourself/gotestyourself/assert"
+    "testing"
+
+    "gopkg.in/yaml.v2"
+
+    "github.com/docker/lunchbox/types"
+)
+
+func TestComposeFileFromScratch(t *testing.T) {
+    services := []string{
+        "redis", "mysql", "python",
+    }
+
+    result, err := composeFileFromScratch(services)
+    assert.NilError(t, err)
+
+    expected := types.NewInitialComposeFile()
+    expected.Services = &map[string]types.InitialService{
+        "redis":  {Image: "redis"},
+        "mysql":  {Image: "mysql"},
+        "python": {Image: "python"},
+    }
+    expectedBytes, err := yaml.Marshal(expected)
+    assert.NilError(t, err)
+    assert.DeepEqual(t, result, expectedBytes)
+}