Handle simple string slice

internal/unmarshaler/unmarshaler_test.go

@@ -11,7 +11,6 @@ import (
 )
 
 func TestFromAst_KV(t *testing.T) {
-	t.Skipf("later")
 	root := ast.Root{
 		ast.Node{
 			Kind: ast.KeyValue,
@@ -37,3 +36,39 @@ func TestFromAst_KV(t *testing.T) {
 	require.NoError(t, err)
 	assert.Equal(t, Doc{Foo: "hello"}, x)
 }
+
+func TestFromAst_Slice(t *testing.T) {
+	root := ast.Root{
+		ast.Node{
+			Kind: ast.KeyValue,
+			Children: []ast.Node{
+				{
+					Kind: ast.Key,
+					Data: []byte(`Foo`),
+				},
+				{
+					Kind: ast.Array,
+					Children: []ast.Node{
+						{
+							Kind: ast.String,
+							Data: []byte(`hello`),
+						},
+						{
+							Kind: ast.String,
+							Data: []byte(`world`),
+						},
+					},
+				},
+			},
+		},
+	}
+
+	type Doc struct {
+		Foo []string
+	}
+
+	x := Doc{}
+	err := unmarshaler.FromAst(root, &x)
+	require.NoError(t, err)
+	assert.Equal(t, Doc{Foo: []string{"hello", "world"}}, x)
+}