create_test.go

package main

import (
	"io/ioutil"
	"os"
	"path/filepath"
	"testing"

	"github.com/deislabs/duffle/pkg/duffle/manifest"
)

func TestCreateCmd(t *testing.T) {
	name := "test-bundle"
	tdir, err := ioutil.TempDir("", "duffle-create")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(tdir)

	cmd := newCreateCmd(ioutil.Discard)
	path := filepath.Join(tdir, name)
	if err := cmd.RunE(cmd, []string{path}); err != nil {
		t.Fatalf("Failed to run create: %s", err)
	}

	if fi, err := os.Stat(path); err != nil {
		t.Fatalf("Nothing created at path: %s", err)
	} else if !fi.IsDir() {
		t.Fatalf("%s is not a directory", path)
	}

	m, err := manifest.Load("duffle.json", path)
	if err != nil {
		t.Errorf("Unable to load duffle.json file: %s", err)
	}

	if m.Name != name {
		t.Errorf("Expected name of bundle to be %s, got %s", name, m.Name)
	}

	// also test the output of duffle.json, since manifest.Load won't necessarily catch that
	mbytes, err := ioutil.ReadFile(filepath.Join(path, "duffle.json"))
	if err != nil {
		t.Error(err)
	}

	// This is the Canonical JSON representation. http://wiki.laptop.org/go/Canonical_JSON
	expected := `{"description":"A short description of your bundle","invocationImages":{"cnab":{"builder":"docker","configuration":{"registry":"deislabs"},"name":"cnab"}},"keywords":["test-bundle","cnab","tutorial"],"maintainers":[{"email":"john.doe@example.com","name":"John Doe","url":"https://example.com"},{"email":"jane.doe@example.com","name":"Jane Doe","url":"https://example.com"}],"name":"test-bundle","version":"0.1.0"}`

	if string(mbytes) != expected {
		t.Errorf("Expected duffle.json output to look like this:\n\n%s\n\nGot:\n\n%s", expected, string(mbytes))
	}
}