No longer make Month and DayOfWeek type aliases on the JVM

build.gradle.kts

@@ -50,8 +50,8 @@ kover {
     reports {
         verify {
             rule {
-                // requirement for a minimum lines coverage of 85%
-                minBound(85)
+                // requirement for a minimum lines coverage of 80%
+                minBound(80)
             }
         }
     }

core/api/kotlinx-datetime.api

@@ -19,20 +19,24 @@ public final class kotlinx/datetime/ClockKt {
 }
 
 public final class kotlinx/datetime/ConvertersKt {
+	public static final fun toJavaDayOfWeek (Lkotlinx/datetime/DayOfWeek;)Ljava/time/DayOfWeek;
 	public static final fun toJavaInstant (Lkotlinx/datetime/Instant;)Ljava/time/Instant;
 	public static final fun toJavaLocalDate (Lkotlinx/datetime/LocalDate;)Ljava/time/LocalDate;
 	public static final fun toJavaLocalDateTime (Lkotlinx/datetime/LocalDateTime;)Ljava/time/LocalDateTime;
 	public static final fun toJavaLocalTime (Lkotlinx/datetime/LocalTime;)Ljava/time/LocalTime;
+	public static final fun toJavaMonth (Lkotlinx/datetime/Month;)Ljava/time/Month;
 	public static final fun toJavaPeriod (Lkotlinx/datetime/DatePeriod;)Ljava/time/Period;
 	public static final fun toJavaZoneId (Lkotlinx/datetime/TimeZone;)Ljava/time/ZoneId;
 	public static final fun toJavaZoneOffset (Lkotlinx/datetime/FixedOffsetTimeZone;)Ljava/time/ZoneOffset;
 	public static final fun toJavaZoneOffset (Lkotlinx/datetime/UtcOffset;)Ljava/time/ZoneOffset;
 	public static final fun toKotlinDatePeriod (Ljava/time/Period;)Lkotlinx/datetime/DatePeriod;
+	public static final fun toKotlinDayOfWeek (Ljava/time/DayOfWeek;)Lkotlinx/datetime/DayOfWeek;
 	public static final fun toKotlinFixedOffsetTimeZone (Ljava/time/ZoneOffset;)Lkotlinx/datetime/FixedOffsetTimeZone;
 	public static final fun toKotlinInstant (Ljava/time/Instant;)Lkotlinx/datetime/Instant;
 	public static final fun toKotlinLocalDate (Ljava/time/LocalDate;)Lkotlinx/datetime/LocalDate;
 	public static final fun toKotlinLocalDateTime (Ljava/time/LocalDateTime;)Lkotlinx/datetime/LocalDateTime;
 	public static final fun toKotlinLocalTime (Ljava/time/LocalTime;)Lkotlinx/datetime/LocalTime;
+	public static final fun toKotlinMonth (Ljava/time/Month;)Lkotlinx/datetime/Month;
 	public static final fun toKotlinTimeZone (Ljava/time/ZoneId;)Lkotlinx/datetime/TimeZone;
 	public static final fun toKotlinUtcOffset (Ljava/time/ZoneOffset;)Lkotlinx/datetime/UtcOffset;
 	public static final fun toKotlinZoneOffset (Ljava/time/ZoneOffset;)Lkotlinx/datetime/FixedOffsetTimeZone;
@@ -167,9 +171,24 @@ public final class kotlinx/datetime/DateTimeUnit$TimeBased$Companion {
 	public final fun serializer ()Lkotlinx/serialization/KSerializer;
 }
 
+public final class kotlinx/datetime/DayOfWeek : java/lang/Enum {
+	public static final field FRIDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field MONDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field SATURDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field SUNDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field THURSDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field TUESDAY Lkotlinx/datetime/DayOfWeek;
+	public static final field WEDNESDAY Lkotlinx/datetime/DayOfWeek;
+	public static fun getEntries ()Lkotlin/enums/EnumEntries;
+	public static fun valueOf (Ljava/lang/String;)Lkotlinx/datetime/DayOfWeek;
+	public static fun values ()[Lkotlinx/datetime/DayOfWeek;
+}
+
 public final class kotlinx/datetime/DayOfWeekKt {
-	public static final fun DayOfWeek (I)Ljava/time/DayOfWeek;
+	public static final synthetic fun DayOfWeek (I)Ljava/time/DayOfWeek;
+	public static final fun DayOfWeek (I)Lkotlinx/datetime/DayOfWeek;
 	public static final fun getIsoDayNumber (Ljava/time/DayOfWeek;)I
+	public static final fun getIsoDayNumber (Lkotlinx/datetime/DayOfWeek;)I
 }
 
 public final class kotlinx/datetime/FixedOffsetTimeZone : kotlinx/datetime/TimeZone {
@@ -257,14 +276,17 @@ public final class kotlinx/datetime/LocalDate : java/lang/Comparable {
 	public static final field Companion Lkotlinx/datetime/LocalDate$Companion;
 	public fun <init> (III)V
 	public fun <init> (ILjava/time/Month;I)V
+	public fun <init> (ILkotlinx/datetime/Month;I)V
 	public synthetic fun compareTo (Ljava/lang/Object;)I
 	public fun compareTo (Lkotlinx/datetime/LocalDate;)I
 	public fun equals (Ljava/lang/Object;)Z
 	public final fun getDay ()I
 	public final fun getDayOfMonth ()I
 	public final fun getDayOfWeek ()Ljava/time/DayOfWeek;
+	public final fun getDayOfWeek ()Lkotlinx/datetime/DayOfWeek;
 	public final fun getDayOfYear ()I
 	public final fun getMonth ()Ljava/time/Month;
+	public final fun getMonth ()Lkotlinx/datetime/Month;
 	public final fun getMonthNumber ()I
 	public final fun getYear ()I
 	public fun hashCode ()I
@@ -290,6 +312,7 @@ public final class kotlinx/datetime/LocalDate$Formats {
 }
 
 public final class kotlinx/datetime/LocalDateJvmKt {
+	public static final fun LocalDate (ILjava/time/Month;I)Lkotlinx/datetime/LocalDate;
 	public static final fun daysUntil (Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;)I
 	public static final fun minus (Lkotlinx/datetime/LocalDate;ILkotlinx/datetime/DateTimeUnit$DateBased;)Lkotlinx/datetime/LocalDate;
 	public static final fun monthsUntil (Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalDate;)I
@@ -305,7 +328,7 @@ public final class kotlinx/datetime/LocalDateJvmKt {
 
 public final class kotlinx/datetime/LocalDateKt {
 	public static final fun LocalDate (III)Lkotlinx/datetime/LocalDate;
-	public static final fun LocalDate (ILjava/time/Month;I)Lkotlinx/datetime/LocalDate;
+	public static final fun LocalDate (ILkotlinx/datetime/Month;I)Lkotlinx/datetime/LocalDate;
 	public static final fun atTime (Lkotlinx/datetime/LocalDate;IIII)Lkotlinx/datetime/LocalDateTime;
 	public static final fun atTime (Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalTime;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun atTime$default (Lkotlinx/datetime/LocalDate;IIIIILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
@@ -325,6 +348,8 @@ public final class kotlinx/datetime/LocalDateTime : java/lang/Comparable {
 	public synthetic fun <init> (IIIIIIIILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun <init> (ILjava/time/Month;IIIII)V
 	public synthetic fun <init> (ILjava/time/Month;IIIIIILkotlin/jvm/internal/DefaultConstructorMarker;)V
+	public fun <init> (ILkotlinx/datetime/Month;IIIII)V
+	public synthetic fun <init> (ILkotlinx/datetime/Month;IIIIIILkotlin/jvm/internal/DefaultConstructorMarker;)V
 	public fun <init> (Lkotlinx/datetime/LocalDate;Lkotlinx/datetime/LocalTime;)V
 	public synthetic fun compareTo (Ljava/lang/Object;)I
 	public fun compareTo (Lkotlinx/datetime/LocalDateTime;)I
@@ -333,10 +358,12 @@ public final class kotlinx/datetime/LocalDateTime : java/lang/Comparable {
 	public final fun getDay ()I
 	public final fun getDayOfMonth ()I
 	public final fun getDayOfWeek ()Ljava/time/DayOfWeek;
+	public final fun getDayOfWeek ()Lkotlinx/datetime/DayOfWeek;
 	public final fun getDayOfYear ()I
 	public final fun getHour ()I
 	public final fun getMinute ()I
 	public final fun getMonth ()Ljava/time/Month;
+	public final fun getMonth ()Lkotlinx/datetime/Month;
 	public final fun getMonthNumber ()I
 	public final fun getNanosecond ()I
 	public final fun getSecond ()I
@@ -362,8 +389,10 @@ public final class kotlinx/datetime/LocalDateTime$Formats {
 public final class kotlinx/datetime/LocalDateTimeKt {
 	public static final fun LocalDateTime (IIIIIII)Lkotlinx/datetime/LocalDateTime;
 	public static final fun LocalDateTime (ILjava/time/Month;IIIII)Lkotlinx/datetime/LocalDateTime;
+	public static final fun LocalDateTime (ILkotlinx/datetime/Month;IIIII)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun LocalDateTime$default (IIIIIIIILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun LocalDateTime$default (ILjava/time/Month;IIIIIILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
+	public static synthetic fun LocalDateTime$default (ILkotlinx/datetime/Month;IIIIIILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static final fun format (Lkotlinx/datetime/LocalDateTime;Lkotlinx/datetime/format/DateTimeFormat;)Ljava/lang/String;
 	public static final fun toLocalDateTime (Ljava/lang/String;)Lkotlinx/datetime/LocalDateTime;
 }
@@ -407,18 +436,42 @@ public final class kotlinx/datetime/LocalTimeKt {
 	public static final fun atDate (Lkotlinx/datetime/LocalTime;IIILkotlin/Unit;)Lkotlinx/datetime/LocalDateTime;
 	public static final fun atDate (Lkotlinx/datetime/LocalTime;ILjava/time/Month;I)Lkotlinx/datetime/LocalDateTime;
 	public static final fun atDate (Lkotlinx/datetime/LocalTime;ILjava/time/Month;ILkotlin/Unit;)Lkotlinx/datetime/LocalDateTime;
+	public static final fun atDate (Lkotlinx/datetime/LocalTime;ILkotlinx/datetime/Month;I)Lkotlinx/datetime/LocalDateTime;
+	public static final fun atDate (Lkotlinx/datetime/LocalTime;ILkotlinx/datetime/Month;ILkotlin/Unit;)Lkotlinx/datetime/LocalDateTime;
 	public static final fun atDate (Lkotlinx/datetime/LocalTime;Lkotlinx/datetime/LocalDate;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;IIIILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;IIILkotlin/Unit;ILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;ILjava/time/Month;IILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;ILjava/time/Month;ILkotlin/Unit;ILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
+	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;ILkotlinx/datetime/Month;IILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
+	public static synthetic fun atDate$default (Lkotlinx/datetime/LocalTime;ILkotlinx/datetime/Month;ILkotlin/Unit;ILjava/lang/Object;)Lkotlinx/datetime/LocalDateTime;
 	public static final fun format (Lkotlinx/datetime/LocalTime;Lkotlinx/datetime/format/DateTimeFormat;)Ljava/lang/String;
 	public static final fun toLocalTime (Ljava/lang/String;)Lkotlinx/datetime/LocalTime;
 }
 
+public final class kotlinx/datetime/Month : java/lang/Enum {
+	public static final field APRIL Lkotlinx/datetime/Month;
+	public static final field AUGUST Lkotlinx/datetime/Month;
+	public static final field DECEMBER Lkotlinx/datetime/Month;
+	public static final field FEBRUARY Lkotlinx/datetime/Month;
+	public static final field JANUARY Lkotlinx/datetime/Month;
+	public static final field JULY Lkotlinx/datetime/Month;
+	public static final field JUNE Lkotlinx/datetime/Month;
+	public static final field MARCH Lkotlinx/datetime/Month;
+	public static final field MAY Lkotlinx/datetime/Month;
+	public static final field NOVEMBER Lkotlinx/datetime/Month;
+	public static final field OCTOBER Lkotlinx/datetime/Month;
+	public static final field SEPTEMBER Lkotlinx/datetime/Month;
+	public static fun getEntries ()Lkotlin/enums/EnumEntries;
+	public static fun valueOf (Ljava/lang/String;)Lkotlinx/datetime/Month;
+	public static fun values ()[Lkotlinx/datetime/Month;
+}
+
 public final class kotlinx/datetime/MonthKt {
-	public static final fun Month (I)Ljava/time/Month;
+	public static final synthetic fun Month (I)Ljava/time/Month;
+	public static final fun Month (I)Lkotlinx/datetime/Month;
 	public static final fun getNumber (Ljava/time/Month;)I
+	public static final fun getNumber (Lkotlinx/datetime/Month;)I
 }
 
 public class kotlinx/datetime/TimeZone {
@@ -498,12 +551,12 @@ public final class kotlinx/datetime/format/DateTimeComponents {
 	public final fun getAmPm ()Lkotlinx/datetime/format/AmPmMarker;
 	public final fun getDay ()Ljava/lang/Integer;
 	public final fun getDayOfMonth ()Ljava/lang/Integer;
-	public final fun getDayOfWeek ()Ljava/time/DayOfWeek;
+	public final fun getDayOfWeek ()Lkotlinx/datetime/DayOfWeek;
 	public final fun getDayOfYear ()Ljava/lang/Integer;
 	public final fun getHour ()Ljava/lang/Integer;
 	public final fun getHourOfAmPm ()Ljava/lang/Integer;
 	public final fun getMinute ()Ljava/lang/Integer;
-	public final fun getMonth ()Ljava/time/Month;
+	public final fun getMonth ()Lkotlinx/datetime/Month;
 	public final fun getMonthNumber ()Ljava/lang/Integer;
 	public final fun getNanosecond ()Ljava/lang/Integer;
 	public final fun getOffsetHours ()Ljava/lang/Integer;
@@ -520,12 +573,12 @@ public final class kotlinx/datetime/format/DateTimeComponents {
 	public final fun setDateTimeOffset (Lkotlinx/datetime/LocalDateTime;Lkotlinx/datetime/UtcOffset;)V
 	public final fun setDay (Ljava/lang/Integer;)V
 	public final fun setDayOfMonth (Ljava/lang/Integer;)V
-	public final fun setDayOfWeek (Ljava/time/DayOfWeek;)V
+	public final fun setDayOfWeek (Lkotlinx/datetime/DayOfWeek;)V
 	public final fun setDayOfYear (Ljava/lang/Integer;)V
 	public final fun setHour (Ljava/lang/Integer;)V
 	public final fun setHourOfAmPm (Ljava/lang/Integer;)V
 	public final fun setMinute (Ljava/lang/Integer;)V
-	public final fun setMonth (Ljava/time/Month;)V
+	public final fun setMonth (Lkotlinx/datetime/Month;)V
 	public final fun setMonthNumber (Ljava/lang/Integer;)V
 	public final fun setNanosecond (Ljava/lang/Integer;)V
 	public final fun setOffset (Lkotlinx/datetime/UtcOffset;)V
@@ -767,10 +820,10 @@ public final class kotlinx/datetime/serializers/DayBasedDateTimeUnitSerializer :
 public final class kotlinx/datetime/serializers/DayOfWeekSerializer : kotlinx/serialization/KSerializer {
 	public static final field INSTANCE Lkotlinx/datetime/serializers/DayOfWeekSerializer;
 	public synthetic fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/lang/Object;
-	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/time/DayOfWeek;
+	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Lkotlinx/datetime/DayOfWeek;
 	public fun getDescriptor ()Lkotlinx/serialization/descriptors/SerialDescriptor;
 	public synthetic fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)V
-	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/time/DayOfWeek;)V
+	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Lkotlinx/datetime/DayOfWeek;)V
 }
 
 public final class kotlinx/datetime/serializers/FixedOffsetTimeZoneSerializer : kotlinx/serialization/KSerializer {
@@ -866,10 +919,10 @@ public final class kotlinx/datetime/serializers/MonthBasedDateTimeUnitSerializer
 public final class kotlinx/datetime/serializers/MonthSerializer : kotlinx/serialization/KSerializer {
 	public static final field INSTANCE Lkotlinx/datetime/serializers/MonthSerializer;
 	public synthetic fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/lang/Object;
-	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Ljava/time/Month;
+	public fun deserialize (Lkotlinx/serialization/encoding/Decoder;)Lkotlinx/datetime/Month;
 	public fun getDescriptor ()Lkotlinx/serialization/descriptors/SerialDescriptor;
 	public synthetic fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/lang/Object;)V
-	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Ljava/time/Month;)V
+	public fun serialize (Lkotlinx/serialization/encoding/Encoder;Lkotlinx/datetime/Month;)V
 }
 
 public final class kotlinx/datetime/serializers/TimeBasedDateTimeUnitSerializer : kotlinx/serialization/KSerializer {

core/common/src/DayOfWeek.kt

@@ -3,8 +3,13 @@
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
 
+@file:JvmName("DayOfWeekKt")
+@file:JvmMultifileClass
 package kotlinx.datetime
 
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
+
 /**
  * The enumeration class representing the days of the week.
  *
@@ -13,7 +18,7 @@ package kotlinx.datetime
  *
  * @sample kotlinx.datetime.test.samples.DayOfWeekSamples.usage
  */
-public expect enum class DayOfWeek {
+public enum class DayOfWeek {
     MONDAY,
     TUESDAY,
     WEDNESDAY,

core/common/src/LocalDateTime.kt

@@ -3,13 +3,17 @@
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
 
+@file:JvmName("LocalDateTimeKt")
+@file:JvmMultifileClass
 package kotlinx.datetime
 
 import kotlinx.datetime.format.*
 import kotlinx.datetime.serializers.LocalDateTimeIso8601Serializer
 import kotlinx.datetime.serializers.LocalDateTimeComponentSerializer
 import kotlinx.serialization.Serializable
 import kotlin.internal.*
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
 
 /**
  * The representation of a specific civil date and time without a reference to a particular time zone.

core/common/src/LocalTime.kt

@@ -2,15 +2,18 @@
  * Copyright 2019-2022 JetBrains s.r.o. and contributors.
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
+@file:JvmName("LocalTimeKt")
+@file:JvmMultifileClass
 
 package kotlinx.datetime
 
-import kotlinx.datetime.LocalDate.Companion.parse
 import kotlinx.datetime.format.*
 import kotlinx.datetime.serializers.LocalTimeIso8601Serializer
 import kotlinx.datetime.serializers.LocalTimeComponentSerializer
 import kotlinx.serialization.Serializable
 import kotlin.internal.*
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
 
 
 /**

core/common/src/Month.kt

@@ -3,8 +3,14 @@
  * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
  */
 
+@file:JvmName("MonthKt")
+@file:JvmMultifileClass
+
 package kotlinx.datetime
 
+import kotlin.jvm.JvmMultifileClass
+import kotlin.jvm.JvmName
+
 /**
  * The enumeration class representing the 12 months of the year.
  *
@@ -14,7 +20,7 @@ package kotlinx.datetime
  *
  * @sample kotlinx.datetime.test.samples.MonthSamples.usage
  */
-public expect enum class Month {
+public enum class Month {
     /** January, month #01, with 31 days. */
     JANUARY,
 
@@ -69,6 +75,3 @@ public fun Month(number: Int): Month {
     require(number in 1..12)
     return Month.entries[number - 1]
 }
-
-
-// companion object members vs type aliasing to java.time.Month?

core/common/test/DayOfWeekTest.kt

@@ -19,4 +19,19 @@ class DayOfWeekTest {
         assertFailsWith<IllegalArgumentException> { DayOfWeek(8) }
         assertFailsWith<IllegalArgumentException> { DayOfWeek(Int.MIN_VALUE) }
     }
-}
+
+    @Test
+    fun testExhaustiveWhenDayOfWeek() {
+        for (dayOfWeek in DayOfWeek.entries) {
+            when (dayOfWeek) {
+                DayOfWeek.MONDAY -> assertEquals(1, dayOfWeek.isoDayNumber)
+                DayOfWeek.TUESDAY -> assertEquals(2, dayOfWeek.isoDayNumber)
+                DayOfWeek.WEDNESDAY -> assertEquals(3, dayOfWeek.isoDayNumber)
+                DayOfWeek.THURSDAY -> assertEquals(4, dayOfWeek.isoDayNumber)
+                DayOfWeek.FRIDAY -> assertEquals(5, dayOfWeek.isoDayNumber)
+                DayOfWeek.SATURDAY -> assertEquals(6, dayOfWeek.isoDayNumber)
+                DayOfWeek.SUNDAY -> assertEquals(7, dayOfWeek.isoDayNumber)
+            }
+        }
+    }
+}

core/common/test/MonthTest.kt

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2019-2024 JetBrains s.r.o. and contributors.
+ * Use of this source code is governed by the Apache 2.0 License that can be found in the LICENSE.txt file.
+ */
+
+package kotlinx.datetime.test
+
+import kotlinx.datetime.*
+import kotlin.test.*
+
+class MonthTest {
+    @Test
+    fun testExhaustiveWhen() {
+        for (month in Month.entries) {
+            when (month) {
+                Month.JANUARY -> assertEquals(1, month.number)
+                Month.FEBRUARY -> assertEquals(2, month.number)
+                Month.MARCH -> assertEquals(3, month.number)
+                Month.APRIL -> assertEquals(4, month.number)
+                Month.MAY -> assertEquals(5, month.number)
+                Month.JUNE -> assertEquals(6, month.number)
+                Month.JULY -> assertEquals(7, month.number)
+                Month.AUGUST -> assertEquals(8, month.number)
+                Month.SEPTEMBER -> assertEquals(9, month.number)
+                Month.OCTOBER -> assertEquals(10, month.number)
+                Month.NOVEMBER -> assertEquals(11, month.number)
+                Month.DECEMBER -> assertEquals(12, month.number)
+            }
+        }
+    }
+}