test: 💍 improved coverage of helpers

internal/helpers/interfaces_test.go

@@ -0,0 +1,21 @@
+package helpers
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestConvertStringToInterface(t *testing.T) {
+	array := [][]string{
+		[]string{"1", "2", "3"},
+		[]string{"4", "5", "6"},
+	}
+	expected := [][]interface{}{
+		[]interface{}{"1", "2", "3"},
+		[]interface{}{"4", "5", "6"},
+	}
+	actual := ConvertStringToInterface(array)
+	if !reflect.DeepEqual(actual, expected) {
+		t.Errorf("Expected %v, got %v", expected, actual)
+	}
+}

internal/helpers/interval_test.go

@@ -1,6 +1,9 @@
 package helpers
 
-import "testing"
+import (
+	"testing"
+	"time"
+)
 
 func TestParseInterval(t *testing.T) {
 	interval, err := ParseInterval("2020-01-01:2020-01-02")
@@ -12,3 +15,10 @@ func TestParseInterval(t *testing.T) {
 		t.Errorf("Invalid interval")
 	}
 }
+
+func TestDaysInterval(t *testing.T) {
+	interval := DaysInterval(1)
+	if interval.Start != time.Now().AddDate(0, 0, -2).Format("2006-01-02") || interval.End != time.Now().AddDate(0, 0, -1).Format("2006-01-02") {
+		t.Errorf("Invalid interval")
+	}
+}

internal/helpers/numbers_test.go

@@ -0,0 +1,9 @@
+package helpers
+
+import "testing"
+
+func TestFloat2Decimal(t *testing.T) {
+	if float2Decimal(1.2345) != "1.23" {
+		t.Errorf("Expected 1.23, got %s", float2Decimal(1.2345))
+	}
+}