add small and useless test

pkg/itemfilter/itemfilter_test.go

@@ -0,0 +1,45 @@
+package itemfilter
+
+import (
+	"testing"
+
+	"github.com/hectorgimenez/d2go/pkg/data"
+	"github.com/hectorgimenez/d2go/pkg/data/item"
+	"github.com/hectorgimenez/d2go/pkg/nip"
+	"github.com/stretchr/testify/require"
+)
+
+func TestEvaluate(t *testing.T) {
+	type args struct {
+		i       data.Item
+		nipRule string // not the best test but too lazy to write rules manually
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		{
+			name: "",
+			args: args{
+				i: data.Item{
+					Name:     item.Name("lightplatedboots"),
+					Quality:  item.QualityUnique,
+					Ethereal: false,
+				},
+				nipRule: "[name] == lightplatedboots && [quality] == unique && [flag] != ethereal # [enhanceddefense] == 60 // goblin toe",
+			},
+			want: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			rule, err := nip.ParseLine(tt.args.nipRule)
+			require.NoError(t, err)
+
+			if got := Evaluate(tt.args.i, []nip.Rule{rule}); got != tt.want {
+				t.Errorf("Evaluate() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}