timecraft: fix run from default config

config.go

@@ -155,18 +155,18 @@ func value[T any](v T) nullable[T] {
  return nullable[T]{value: v, exist: true}
 }
 
-func (v *nullable[T]) Value() (T, bool) {
+func (v nullable[T]) Value() (T, bool) {
  return v.value, v.exist
 }
 
-func (v *nullable[T]) MarshalJSON() ([]byte, error) {
+func (v nullable[T]) MarshalJSON() ([]byte, error) {
  if !v.exist {
  return []byte("null"), nil
  }
  return json.Marshal(v.value)
 }
 
-func (v *nullable[T]) MarshalYAML() (any, error) {
+func (v nullable[T]) MarshalYAML() (any, error) {
  if !v.exist {
  return nil, nil
  }

main_test.go

@@ -20,6 +20,7 @@ func TestTimecraft(t *testing.T) {
  t.Run("get", get.run)
  t.Run("help", help.run)
  t.Run("root", root.run)
+ t.Run("run", run.run)
  t.Run("unknown", unknown.run)
  t.Run("version", version.run)
 }

run_test.go

@@ -0,0 +1,33 @@
+package main_test
+
+import (
+ "path/filepath"
+ "testing"
+
+ "github.com/stealthrocket/timecraft/internal/assert"
+)
+
+var run = tests{
+ "show the run command help with the short option": func(t *testing.T) {
+ stdout, stderr, err := timecraft(t, "run", "-h")
+ assert.OK(t, err)
+ assert.HasPrefix(t, stdout, "Usage:\ttimecraft run ")
+ assert.Equal(t, stderr, "")
+ },
+
+ "show the run command help with the long option": func(t *testing.T) {
+ stdout, stderr, err := timecraft(t, "run", "--help")
+ assert.OK(t, err)
+ assert.HasPrefix(t, stdout, "Usage:\ttimecraft run ")
+ assert.Equal(t, stderr, "")
+ },
+
+ "running with a configuration file which does not exist uses the default location": func(t *testing.T) {
+ t.Setenv("TIMECRAFTCONFIG", filepath.Join(t.TempDir(), "path", "to", "nowehere.yaml"))
+
+ stdout, stderr, err := timecraft(t, "run", "./testdata/go/sleep.wasm", "0")
+ assert.OK(t, err)
+ assert.Equal(t, stdout, "sleeping for 0s\n")
+ assert.NotEqual(t, stderr, "")
+ },
+}