diff --git a/pkg/itemfilter/itemfilter_test.go b/pkg/itemfilter/itemfilter_test.go
new file mode 100644
index 0000000..dfb9633
--- /dev/null
+++ b/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)
+			}
+		})
+	}
+}
diff --git a/pkg/nip/file_reader.go b/pkg/nip/file_reader.go
index 24198f0..d16f196 100644
--- a/pkg/nip/file_reader.go
+++ b/pkg/nip/file_reader.go
@@ -43,7 +43,7 @@ func ParseNIPFile(filePath string) ([]Rule, error) {
 
 	rules := make([]Rule, 0)
 	for fileScanner.Scan() {
-		rule, err := parseLine(fileScanner.Text())
+		rule, err := ParseLine(fileScanner.Text())
 		if errors.Is(err, errEmptyLine) {
 			continue
 		}
diff --git a/pkg/nip/nip_parser.go b/pkg/nip/nip_parser.go
index 1e6eaeb..970ba43 100644
--- a/pkg/nip/nip_parser.go
+++ b/pkg/nip/nip_parser.go
@@ -14,7 +14,7 @@ var (
 	propertyNameRegex = regexp.MustCompile(`\[(.*)\]`)
 )
 
-func parseLine(line string) (Rule, error) {
+func ParseLine(line string) (Rule, error) {
 	line = lineCleanup(line)
 	if line == "" {
 		return Rule{}, errEmptyLine
diff --git a/pkg/nip/nip_parser_test.go b/pkg/nip/nip_parser_test.go
index 0cca470..76ec831 100644
--- a/pkg/nip/nip_parser_test.go
+++ b/pkg/nip/nip_parser_test.go
@@ -10,7 +10,7 @@ import (
 const nipLine = "[type] == boots && [quality] == rare # [frw] >= 10 && [fireresist] >= 10 && ([lightresist]+[coldresist] >= 10 && [dexterity] >= 1 && [fireresist]+[poisonresist] >= 10) // this is a comment"
 
 func Test_parseLine(t *testing.T) {
-	rules, err := parseLine(nipLine)
+	rules, err := ParseLine(nipLine)
 	require.NoError(t, err)
 
 	expected := Rule{