isle/go/yamlutil/yamlutil_test.go

57 lines
952 B
Go

package yamlutil
import (
"os"
"path/filepath"
"reflect"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLoadYamlFile(t *testing.T) {
type structA struct {
A int
B string
}
tests := []struct {
name string
body string
want any
}{
{
name: "empty body",
body: "",
want: structA{},
},
{
name: "all comments",
body: `# foo
# bar`,
want: structA{},
},
{
name: "success",
body: "a: 1\nb: foo\n",
want: structA{A: 1, B: "foo"},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
var (
dir = t.TempDir()
path = filepath.Join(dir, "f.yaml")
intoV = reflect.New(reflect.TypeOf(test.want))
into = intoV.Interface()
)
require.NoError(t, os.WriteFile(path, []byte(test.body), 0444))
assert.NoError(t, LoadYamlFile(into, path))
assert.Equal(t, test.want, intoV.Elem().Interface())
})
}
}