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[UPDATE] Test with full date format for better understanding #242

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Jan 1, 2024
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[UPDATE] Test with full date format for better understanding #242

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114 changes: 61 additions & 53 deletions src/test/kotlin/dev/hossain/time/DateTimeDifferTest.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,20 @@ import com.google.common.truth.Truth.assertThat
import kotlinx.datetime.Instant
import kotlinx.datetime.toInstant
import org.junit.jupiter.api.AfterEach
import org.junit.jupiter.api.Assertions
import org.junit.jupiter.api.Assertions.assertThrows
import org.junit.jupiter.api.BeforeEach
import org.junit.jupiter.api.Test
import java.time.ZoneId
import kotlin.time.Duration

/**
* Test cases for [DateTimeDiffer].
*
* Useful sites for time generations
* - https://www.timestamp-converter.com/
* - https://time.lol/ (Custom format: `ddd, D MMM YYYY h:mm a`)
* - https://timestampgenerator.com/1662386400/-04:00
*/
internal class DateTimeDifferTest {
/*
* System default on my machine is: `America/Toronto`
Expand All @@ -30,18 +38,18 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time is after end time - throws error`() {
val startTime: Instant = Instant.parse("2022-09-05T11:30:00-04:00")
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00")
val startTime: Instant = Instant.parse("2022-09-05T11:30:00-04:00") // Sep 5, 2022, 11:30:00 a.m.
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Sep 5, 2022, 10:00:00 a.m.

Assertions.assertThrows(IllegalArgumentException::class.java) {
assertThrows(IllegalArgumentException::class.java) {
DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)
}
}

@Test
fun `diff - given start time and end time both in working day and hour - provides right diff`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-05T11:30:00-04:00") // 11:30am same day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Sep 5, 2022, 10:00:00 a.m.
val endTime: Instant = Instant.parse("2022-09-05T11:30:00-04:00") // Sep 5, 2022, 11:30:00 a.m. same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -50,8 +58,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in non-working day but in working hour - provides zero working hour`() {
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // 10:00am Saturday
val endTime: Instant = Instant.parse("2022-09-03T11:30:00-04:00") // 11:30am same day
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // Sep 3, 2022, 10:00:00 a.m. Saturday
val endTime: Instant = Instant.parse("2022-09-03T11:30:00-04:00") // Sep 3, 2022, 11:30:00 a.m. same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -60,8 +68,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in non-working day and hour and spans two days - provides zero working hour`() {
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // 10:00am Saturday
val endTime: Instant = Instant.parse("2022-09-04T20:00:00-04:00") // 8:00pm Sunday
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // Sat, 3 Sep 2022 10:00 am Saturday
val endTime: Instant = Instant.parse("2022-09-04T20:00:00-04:00") // Sun, 4 Sep 2022 8:00 pm Sunday

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -70,8 +78,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in working day but end time is outside working hour - provides diff excluding non-working hours`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-05T20:00:00-04:00") // 8:00pm same day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-05T20:00:00-04:00") // Mon, 5 Sep 2022 8:00 pm same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -80,8 +88,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in working day but start time is outside working hour - provides diff excluding non-working hours`() {
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // 06:00am
val endTime: Instant = Instant.parse("2022-09-05T12:00:00-04:00") // 12:00pm same day
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // Mon, 5 Sep 2022 6:00 am
val endTime: Instant = Instant.parse("2022-09-05T12:00:00-04:00") // Mon, 5 Sep 2022 12:00 pm same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -90,8 +98,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in working day but start & end time is before working hour - provides almost diff zero`() {
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // 06:00am
val endTime: Instant = Instant.parse("2022-09-05T07:00:00-04:00") // 07:00am same day
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // Mon, 5 Sep 2022 6:00 am
val endTime: Instant = Instant.parse("2022-09-05T07:00:00-04:00") // Mon, 5 Sep 2022 7:00 am same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -100,8 +108,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in working day but start & end time is after working hour - provides almost diff zero`() {
val startTime: Instant = Instant.parse("2022-09-05T18:00:00-04:00") // 06:00pm
val endTime: Instant = Instant.parse("2022-09-05T21:00:00-04:00") // 09:00pm same day
val startTime: Instant = Instant.parse("2022-09-05T18:00:00-04:00") // Mon, 5 Sep 2022 6:00 pm
val endTime: Instant = Instant.parse("2022-09-05T21:00:00-04:00") // Mon, 5 Sep 2022 9:00 pm same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -110,8 +118,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time both in working day but start & end time is before and after working hour - provides working hour diff`() {
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // 06:00am
val endTime: Instant = Instant.parse("2022-09-05T21:00:00-04:00") // 09:00pm same day
val startTime: Instant = Instant.parse("2022-09-05T06:00:00-04:00") // Mon, 5 Sep 2022 6:00 am
val endTime: Instant = Instant.parse("2022-09-05T21:00:00-04:00") // Mon, 5 Sep 2022 9:00 pm same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand Down Expand Up @@ -160,8 +168,8 @@ internal class DateTimeDifferTest {
*/
@Test
fun `diff - given start time is before working hour and end time during work hour - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-13T12:11:30Z") // 08:11:30 AM
val endTime: Instant = Instant.parse("2022-09-13T13:07:11Z") // 09:07:11 AM
val startTime: Instant = Instant.parse("2022-09-13T12:11:30Z") // Tue, 13 Sep 2022 8:11 am
val endTime: Instant = Instant.parse("2022-09-13T13:07:11Z") // Tue, 13 Sep 2022 9:07 am

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -170,8 +178,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time in working hour and end time is next day working hour - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-06T10:00:00-04:00") // 10:00am next day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-06T10:00:00-04:00") // Tue, 6 Sep 2022 10:00 am next day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -180,8 +188,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time in working hour and end time is next day after working hour - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-06T20:00:00-04:00") // 08:00pm next day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-06T20:00:00-04:00") // Tue, 6 Sep 2022 8:00 pm next day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -190,8 +198,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time spans multiple working days - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am Monday
val endTime: Instant = Instant.parse("2022-09-08T10:00:00-04:00") // 10:00am 3 days layer
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am Monday
val endTime: Instant = Instant.parse("2022-09-08T10:00:00-04:00") // Thu, 8 Sep 2022 10:00 am 3 days later

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -200,8 +208,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time and end time spans whole week - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am Monday
val endTime: Instant = Instant.parse("2022-09-09T16:00:00-04:00") // 04:00pm Friday
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am Monday
val endTime: Instant = Instant.parse("2022-09-09T16:00:00-04:00") // Fri, 9 Sep 2022 4:00 pm Friday

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -210,8 +218,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time before weekend and end time after weekend - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-01T10:00:00-04:00") // 10:00am Thursday
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am Monday next week
val startTime: Instant = Instant.parse("2022-09-01T10:00:00-04:00") // Thu, 1 Sep 2022 10:00 am Thursday
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am Monday next week

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -220,7 +228,7 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time before weekend and end time few days after weekend - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-01T10:00:00-04:00") // 10:00am Thursday
val startTime: Instant = Instant.parse("2022-09-01T10:00:00-04:00") // Thu, 1 Sep 2022 10:00 am Thursday
val endTime: Instant = Instant.parse("2022-09-07T10:00:00-04:00") // 10:00am Wednesday next week

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)
Expand All @@ -230,8 +238,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time during weekend and end time after weekend - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // 10:00am Saturday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // 11:00am Monday next week
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // Sat, 3 Sep 2022 10:00 am Saturday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // Mon, 5 Sep 2022 11:00 am Monday next week

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -240,8 +248,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time end of week outside working hour and end time after weekend - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-02T20:00:00-04:00") // 08:00pm Friday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // 11:00am Monday next week
val startTime: Instant = Instant.parse("2022-09-02T20:00:00-04:00") // Fri, 2 Sep 2022 8:00 pm Friday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // Mon, 5 Sep 2022 11:00 am Monday next week

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -250,8 +258,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given start time outside working hour week before and end time after weekend - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-01T20:00:00-04:00") // 08:00pm Thursday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // 11:00am Monday next week
val startTime: Instant = Instant.parse("2022-09-01T20:00:00-04:00") // Thu, 1 Sep 2022 8:00 pm Thursday
val endTime: Instant = Instant.parse("2022-09-05T11:00:00-04:00") // Mon, 5 Sep 2022 11:00 am Monday next week

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -260,7 +268,7 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given multiple weekends between start and end time - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-01T14:00:00-04:00") // 02:00pm Thursday
val startTime: Instant = Instant.parse("2022-09-01T14:00:00-04:00") // Thu, 1 Sep 2022 2:00 pm Thursday
val endTime: Instant = Instant.parse("2022-09-13T14:00:00-04:00") // 2:00pm Tuesday 2 weeks later

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)
Expand All @@ -270,8 +278,8 @@ internal class DateTimeDifferTest {

@Test
fun `diff - given multiple weekends between start and end time also during weekends - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // 10:00am Saturday
val endTime: Instant = Instant.parse("2022-09-18T20:00:00-04:00") // 8:00pm Sunday 2 weeks later
val startTime: Instant = Instant.parse("2022-09-03T10:00:00-04:00") // Sat, 3 Sep 2022 10:00 am Saturday
val endTime: Instant = Instant.parse("2022-09-18T20:00:00-04:00") // Sun, 18 Sep 2022 8:00 pm Sunday 2 weeks later

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand Down Expand Up @@ -321,8 +329,8 @@ internal class DateTimeDifferTest {

@Test
fun `diffWorkingHours - given start time is equal to end time - provides zero working hour`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am same day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -331,8 +339,8 @@ internal class DateTimeDifferTest {

@Test
fun `diffWorkingHours - given start time is during working hour and end time is after working hour on the same day - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-05T18:00:00-04:00") // 6:00pm same day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-05T18:00:00-04:00") // Mon, 5 Sep 2022 6:00pm same day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -341,18 +349,18 @@ internal class DateTimeDifferTest {

@Test
fun `diffWorkingHours - given start time is during working hour and end time is before working hour on the same day - provides zero working hour`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-05T08:00:00-04:00") // 8:00am same day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-05T08:00:00-04:00") // Mon, 5 Sep 2022 8:00 am same day

Assertions.assertThrows(IllegalArgumentException::class.java) {
assertThrows(IllegalArgumentException::class.java) {
DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)
}
}

@Test
fun `diffWorkingHours - given start time is during working hour and end time is before working hour on the next day - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-06T08:00:00-04:00") // 8:00am next day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-06T08:00:00-04:00") // Tue, 6 Sep 2022 8:00 am next day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand All @@ -361,8 +369,8 @@ internal class DateTimeDifferTest {

@Test
fun `diffWorkingHours - given start time is during working hour and end time is after working hour on the next day - provides diff of working hour only`() {
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // 10:00am
val endTime: Instant = Instant.parse("2022-09-06T18:00:00-04:00") // 6:00pm next day
val startTime: Instant = Instant.parse("2022-09-05T10:00:00-04:00") // Mon, 5 Sep 2022 10:00 am
val endTime: Instant = Instant.parse("2022-09-06T18:00:00-04:00") // Tue, 6 Sep 2022 6:00 pm next day

val diffWorkingHours = DateTimeDiffer.diffWorkingHours(startTime, endTime, zoneId)

Expand Down