1 files changed, 108 insertions, 0 deletions
diff --git a/model/node_test.go b/model/node_test.go
new file mode 100644
index 0000000..268afa5
--- /dev/null
+++ b/model/node_test.go
@@ -0,0 +1,108 @@
+package model
+
+import (
+	stdJSON "encoding/json"
+	"reflect"
+	"testing"
+)
+
+func TestNode_MarshalJSON(t *testing.T) {
+	type fields struct {
+		node *Node
+	}
+	tests := []struct {
+		name    string
+		fields  fields
+		want    []byte
+		wantErr bool
+	}{
+		{
+			name: "empty",
+			fields: fields{
+				node: NewNode(nil),
+			},
+			want: []byte(`null`),
+		},
+		{
+			name: "string",
+			fields: fields{
+				node: NewNode("this is a string"),
+			},
+			want: []byte(`"this is a string"`),
+		},
+		{
+			name: "int",
+			fields: fields{
+				node: NewNode(123),
+			},
+			want: []byte(`123`),
+		},
+		{
+			name: "float",
+			fields: fields{
+				node: NewNode(123.321),
+			},
+			want: []byte(`123.321`),
+		},
+		{
+			name: "booleant",
+			fields: fields{
+				node: NewNode(true),
+			},
+			want: []byte(`true`),
+		},
+		{
+			name: "booleanf",
+			fields: fields{
+				node: NewNode(false),
+			},
+			want: []byte(`false`),
+		},
+		{
+			name: "complex",
+			fields: fields{
+				node: NewNode(
+					NodeObjectValue{
+						"string key": NewNode("string value"),
+						"number key": NewNode(1337),
+						"float key":  NewNode(123.3),
+						"object key": NewNode(NodeObjectValue{
+							"ab": NewNode("cd"),
+						}),
+						"array key": NewNode(NodeArrayValue{
+							NewNode(1), NewNode(2), NewNode("three"),
+						}),
+						"boolean key": NewNode(true),
+						"null key":    NewNode(nil),
+					},
+				),
+			},
+			want: []byte(
+				`{"string key": "string value", "number key": 1337, "float key": 123.3, "object key": {"ab": "cd"}, "array key": [1, 2, "three"], "boolean key": true, "null key": null}`,
+			),
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var (
+				gotObj  any
+				wantObj any
+			)
+
+			got, err := tt.fields.node.MarshalJSON()
+			if (err != nil) != tt.wantErr {
+				t.Errorf("Node.MarshalJSON() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			err = stdJSON.Unmarshal(got, &gotObj) // TODO use own unmarshaller
+			if err != nil {
+				t.Errorf("Generated invalid json = %s, error = %v", got, err)
+			}
+			_ = stdJSON.Unmarshal(tt.want, &wantObj) // I belive, test is correct
+			if !reflect.DeepEqual(gotObj, wantObj) {
+				t.Errorf("Node.MarshalJSON() = %s, want %s", got, tt.want)
+			}
+		})
+	}
+}