literal: add test suite

pkg/policy/literal/literal.go

@@ -68,7 +68,19 @@ func anyAssemble(val any) qp.Assemble {
 	}
 
 	switch rt.Kind() {
-	case reflect.Array, reflect.Slice:
+	case reflect.Array:
+		if rt.Elem().Kind() == reflect.Uint8 {
+			panic("bytes array are not supported yet")
+		}
+		return qp.List(int64(rv.Len()), func(la datamodel.ListAssembler) {
+			for i := range rv.Len() {
+				qp.ListEntry(la, anyAssemble(rv.Index(i)))
+			}
+		})
+	case reflect.Slice:
+		if rt.Elem().Kind() == reflect.Uint8 {
+			return qp.Bytes(val.([]byte))
+		}
 		return qp.List(int64(rv.Len()), func(la datamodel.ListAssembler) {
 			for i := range rv.Len() {
 				qp.ListEntry(la, anyAssemble(rv.Index(i)))

pkg/policy/literal/literal_test.go

@@ -0,0 +1,125 @@
+package literal
+
+import (
+	"testing"
+
+	"github.com/ipld/go-ipld-prime/datamodel"
+	"github.com/ipld/go-ipld-prime/printer"
+	"github.com/stretchr/testify/require"
+)
+
+func TestList(t *testing.T) {
+	n, err := List([]int{1, 2, 3})
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_List, n.Kind())
+	require.Equal(t, int64(3), n.Length())
+	require.Equal(t, `list{
+	0: int{1}
+	1: int{2}
+	2: int{3}
+}`, printer.Sprint(n))
+
+	n, err = List([][]int{{1, 2, 3}, {4, 5, 6}})
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_List, n.Kind())
+	require.Equal(t, int64(2), n.Length())
+	require.Equal(t, `list{
+	0: list{
+		0: int{1}
+		1: int{2}
+		2: int{3}
+	}
+	1: list{
+		0: int{4}
+		1: int{5}
+		2: int{6}
+	}
+}`, printer.Sprint(n))
+}
+
+func TestMap(t *testing.T) {
+	n, err := Map(map[string]any{
+		"bool":   true,
+		"string": "foobar",
+		"bytes":  []byte{1, 2, 3, 4},
+		"int":    1234,
+		"uint":   uint(12345),
+		"float":  1.45,
+		"slice":  []int{1, 2, 3},
+		"array":  [2]int{1, 2},
+		"map": map[string]any{
+			"foo": "bar",
+			"foofoo": map[string]string{
+				"barbar": "foo",
+			},
+		},
+	})
+	require.NoError(t, err)
+
+	v, err := n.LookupByString("bool")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Bool, v.Kind())
+	require.Equal(t, true, must(v.AsBool()))
+
+	v, err = n.LookupByString("string")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_String, v.Kind())
+	require.Equal(t, "foobar", must(v.AsString()))
+
+	v, err = n.LookupByString("bytes")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Bytes, v.Kind())
+	require.Equal(t, []byte{1, 2, 3, 4}, must(v.AsBytes()))
+
+	v, err = n.LookupByString("int")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Int, v.Kind())
+	require.Equal(t, int64(1234), must(v.AsInt()))
+
+	v, err = n.LookupByString("uint")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Int, v.Kind())
+	require.Equal(t, int64(12345), must(v.AsInt()))
+
+	v, err = n.LookupByString("float")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Float, v.Kind())
+	require.Equal(t, 1.45, must(v.AsFloat()))
+
+	v, err = n.LookupByString("slice")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_List, v.Kind())
+	require.Equal(t, int64(3), v.Length())
+	require.Equal(t, `list{
+	0: int{1}
+	1: int{2}
+	2: int{3}
+}`, printer.Sprint(v))
+
+	v, err = n.LookupByString("array")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_List, v.Kind())
+	require.Equal(t, int64(2), v.Length())
+	require.Equal(t, `list{
+	0: int{1}
+	1: int{2}
+}`, printer.Sprint(v))
+
+	v, err = n.LookupByString("map")
+	require.NoError(t, err)
+	require.Equal(t, datamodel.Kind_Map, v.Kind())
+	require.Equal(t, int64(2), v.Length())
+	require.Equal(t, `map{
+	string{"foo"}: string{"bar"}
+	string{"foofoo"}: map{
+		string{"barbar"}: string{"foo"}
+	}
+}`, printer.Sprint(v))
+}
+
+func must[T any](t T, err error) T {
+	if err != nil {
+		panic(err)
+	}
+	return t
+}