init

internal/jalali/jalali_test.go

@@ -0,0 +1,36 @@
+package jalali
+
+import (
+	"testing"
+	"time"
+)
+
+func TestKnownDates(t *testing.T) {
+	tests := []struct {
+		gregorian string
+		jalali    Date
+	}{
+		{"2024-03-20", Date{1403, 1, 1}},
+		{"2025-03-21", Date{1404, 1, 1}},
+		{"2026-07-28", Date{1405, 5, 6}},
+	}
+	for _, tt := range tests {
+		g, _ := time.Parse("2006-01-02", tt.gregorian)
+		if got := FromTime(g); got != tt.jalali {
+			t.Errorf("%s: got %v, want %v", tt.gregorian, got, tt.jalali)
+		}
+		back := ToGregorian(tt.jalali.Year, tt.jalali.Month, tt.jalali.Day)
+		if got := back.Format("2006-01-02"); got != tt.gregorian {
+			t.Errorf("%v: got %s, want %s", tt.jalali, got, tt.gregorian)
+		}
+	}
+}
+
+func TestMonthLength(t *testing.T) {
+	if got := DaysInMonth(1399, 12); got != 30 {
+		t.Fatalf("leap Esfand: got %d, want 30", got)
+	}
+	if got := DaysInMonth(1400, 12); got != 29 {
+		t.Fatalf("regular Esfand: got %d, want 29", got)
+	}
+}