@@ -0,0 +1,1035 @@
+package io.castle.client;%0A%0Aimport io.castle.client.internal.utils.Timestamp;%0Aimport io.castle.client.model.CastleSdkConfigurationException;%0Aimport org.assertj.core.api.Assertions;%0Aimport org.assertj.core.util.DateUtil;%0Aimport org.junit.Test;%0A%0Aimport java.util.Calendar;%0Aimport java.util.Date;%0Aimport java.util.Locale;%0Aimport java.util.TimeZone;%0A%0Apublic class TimestampTest %7B%0A%0A    @Test%0A    public void dateToTimestamp() %7B%0A        //Given%0A        Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone(%22UTC%22), new Locale(%22en%22, %22US%22, %22POSIX%22));%0A        calendar.set(Calendar.YEAR, 2019);%0A        calendar.set(Calendar.MONTH, Calendar.JANUARY);%0A        calendar.set(Calendar.DAY_OF_MONTH, 2);%0A        calendar.set(Calendar.HOUR_OF_DAY, 3);%0A        calendar.set(Calendar.MINUTE, 4);%0A        calendar.set(Calendar.SECOND, 5);%0A        calendar.set(Calendar.MILLISECOND, 678);%0A%0A        String timestamp = Timestamp.timestamp(calendar.getTime());%0A%0A        Assertions.assertThat(timestamp).isEqualTo(%222019-01-02T03:04:05.678Z%22);%0A    %7D%0A%7D%0A

Add test for timestamp