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139 changes: 139 additions & 0 deletions
139
...s/src/test/kotlin/org/jetbrains/exposed/sql/tests/shared/entities/OrderedReferenceTest.kt
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| package org.jetbrains.exposed.sql.tests.shared.entities | ||
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| import org.jetbrains.exposed.dao.IntEntity | ||
| import org.jetbrains.exposed.dao.IntEntityClass | ||
| import org.jetbrains.exposed.dao.id.EntityID | ||
| import org.jetbrains.exposed.dao.id.IntIdTable | ||
| import org.jetbrains.exposed.sql.SortOrder.DESC | ||
| import org.jetbrains.exposed.sql.Transaction | ||
| import org.jetbrains.exposed.sql.insert | ||
| import org.jetbrains.exposed.sql.tests.DatabaseTestsBase | ||
| import org.jetbrains.exposed.sql.tests.TestDB | ||
| import org.jetbrains.exposed.sql.tests.shared.assertEquals | ||
| import org.jetbrains.exposed.sql.tests.shared.assertTrue | ||
| import org.junit.Test | ||
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| class OrderedReferenceTest : DatabaseTestsBase() { | ||
| object Users : IntIdTable() | ||
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| object UserRatings : IntIdTable() { | ||
| val value = integer("value") | ||
| val user = reference("user", Users) | ||
| } | ||
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| object UserNullableRatings : IntIdTable() { | ||
| val value = integer("value") | ||
| val user = reference("user", Users).nullable() | ||
| } | ||
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| class UserRatingDefaultOrder(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserRatingDefaultOrder>(UserRatings) | ||
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| var value by UserRatings.value | ||
| var user by UserDefaultOrder referencedOn UserRatings.user | ||
| } | ||
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| class UserNullableRatingDefaultOrder(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserNullableRatingDefaultOrder>(UserNullableRatings) | ||
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| var value by UserNullableRatings.value | ||
| var user by UserDefaultOrder optionalReferencedOn UserNullableRatings.user | ||
| } | ||
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| class UserDefaultOrder(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserDefaultOrder>(Users) | ||
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| val ratings by UserRatingDefaultOrder referrersOn UserRatings.user orderBy UserRatings.value | ||
| val nullableRatings by UserNullableRatingDefaultOrder optionalReferrersOn UserNullableRatings.user orderBy UserNullableRatings.value | ||
| } | ||
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| @Test | ||
| fun testDefaultOrder() { | ||
| withOrderedReferenceTestTables { | ||
| val user = UserDefaultOrder.all().first() | ||
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| unsortedRatingValues.sorted().zip(user.ratings).forEach { (value, rating) -> | ||
| assertEquals(value, rating.value) | ||
| } | ||
| unsortedRatingValues.sorted().zip(user.nullableRatings).forEach { (value, rating) -> | ||
| assertEquals(value, rating.value) | ||
| } | ||
| } | ||
| } | ||
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| class UserRatingMultiColumn(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserRatingMultiColumn>(UserRatings) | ||
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| var value by UserRatings.value | ||
| var user by UserMultiColumn referencedOn UserRatings.user | ||
| } | ||
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| class UserNullableRatingMultiColumn(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserNullableRatingMultiColumn>(UserNullableRatings) | ||
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| var value by UserNullableRatings.value | ||
| var user by UserMultiColumn optionalReferencedOn UserNullableRatings.user | ||
| } | ||
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| class UserMultiColumn(id: EntityID<Int>) : IntEntity(id) { | ||
| companion object : IntEntityClass<UserMultiColumn>(Users) | ||
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| val ratings by UserRatingMultiColumn referrersOn UserRatings.user orderBy listOf(UserRatings.value to DESC, UserRatings.id to DESC) | ||
| val nullableRatings by UserNullableRatingMultiColumn optionalReferrersOn UserNullableRatings.user orderBy listOf( | ||
| UserNullableRatings.value to DESC, | ||
| UserNullableRatings.id to DESC | ||
| ) | ||
| } | ||
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| @Test | ||
| fun testMultiColumnOrder() { | ||
| withOrderedReferenceTestTables { | ||
| val ratings = UserMultiColumn.all().first().ratings.map { it } | ||
| val nullableRatings = UserMultiColumn.all().first().nullableRatings.map { it } | ||
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| // Ensure each value is less than the one before it. | ||
| // IDs should be sorted within groups of identical values. | ||
| fun assertRatingsOrdered(current: UserRatingMultiColumn, prev: UserRatingMultiColumn) { | ||
| assertTrue(current.value <= prev.value) | ||
| if (current.value == prev.value) { | ||
| assertTrue(current.id <= prev.id) | ||
| } | ||
| } | ||
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| fun assertNullableRatingsOrdered(current: UserNullableRatingMultiColumn, prev: UserNullableRatingMultiColumn) { | ||
| assertTrue(current.value <= prev.value) | ||
| if (current.value == prev.value) { | ||
| assertTrue(current.id <= prev.id) | ||
| } | ||
| } | ||
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| for (i in 1..<ratings.size) { | ||
| assertRatingsOrdered(ratings[i], ratings[i - 1]) | ||
| assertNullableRatingsOrdered(nullableRatings[i], nullableRatings[i - 1]) | ||
| } | ||
| } | ||
| } | ||
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| private val unsortedRatingValues = listOf(0, 3, 1, 2, 4, 4, 5, 4, 5, 6, 9, 8) | ||
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| private fun withOrderedReferenceTestTables(statement: Transaction.(TestDB) -> Unit) { | ||
| withTables(Users, UserRatings, UserNullableRatings) { db -> | ||
| val userId = Users.insert { }.resultedValues?.firstOrNull()?.get(Users.id) ?: error("User was not created") | ||
| unsortedRatingValues.forEach { value -> | ||
| UserRatings.insert { | ||
| it[user] = userId | ||
| it[UserRatings.value] = value | ||
| } | ||
| UserNullableRatings.insert { | ||
| it[user] = userId | ||
| it[UserRatings.value] = value | ||
| } | ||
| UserNullableRatings.insert { | ||
| it[user] = null | ||
| it[UserRatings.value] = value | ||
| } | ||
| } | ||
| statement(db) | ||
| } | ||
| } | ||
| } |