#BAEL-693 tests and code examples. (#5091)

This commit is contained in:
Alessio Stalla 2018-08-27 22:32:15 +02:00 committed by maibin
parent 8ac53f70c4
commit 64ba651582
2 changed files with 431 additions and 78 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-kotlin</artifactId>
<packaging>jar</packaging>
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>core-kotlin</artifactId>
<packaging>jar</packaging>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-kotlin</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../parent-kotlin</relativePath>
</parent>
<parent>
<groupId>com.baeldung</groupId>
<artifactId>parent-kotlin</artifactId>
<version>1.0.0-SNAPSHOT</version>
<relativePath>../parent-kotlin</relativePath>
</parent>
<dependencies>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-api</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-subject-extension</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-junit-platform-engine</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>${commons-math3.version}</version>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>khttp</groupId>
<artifactId>khttp</artifactId>
<version>${khttp.version}</version>
</dependency>
<dependency>
<groupId>com.nhaarman</groupId>
<artifactId>mockito-kotlin</artifactId>
<version>${mockito-kotlin.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.salomonbrys.kodein</groupId>
<artifactId>kodein</artifactId>
<version>${kodein.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.beust</groupId>
<artifactId>klaxon</artifactId>
<version>${klaxon.version}</version>
</dependency>
</dependencies>
<repositories>
<repository>
<id>exposed</id>
<name>exposed</name>
<url>https://dl.bintray.com/kotlin/exposed</url>
</repository>
</repositories>
<properties>
<mockito-kotlin.version>1.5.0</mockito-kotlin.version>
<kodein.version>4.1.0</kodein.version>
<klaxon.version>3.0.4</klaxon.version>
<khttp.version>0.1.0</khttp.version>
<commons-math3.version>3.6.1</commons-math3.version>
<junit.platform.version>1.1.1</junit.platform.version>
<junit.vintage.version>5.2.0</junit.vintage.version>
<assertj.version>3.10.0</assertj.version>
</properties>
<dependencies>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-api</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-subject-extension</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.spek</groupId>
<artifactId>spek-junit-platform-engine</artifactId>
<version>1.1.5</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-math3</artifactId>
<version>${commons-math3.version}</version>
</dependency>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-runner</artifactId>
<version>${junit.platform.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>khttp</groupId>
<artifactId>khttp</artifactId>
<version>${khttp.version}</version>
</dependency>
<dependency>
<groupId>com.nhaarman</groupId>
<artifactId>mockito-kotlin</artifactId>
<version>${mockito-kotlin.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.github.salomonbrys.kodein</groupId>
<artifactId>kodein</artifactId>
<version>${kodein.version}</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>${assertj.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.beust</groupId>
<artifactId>klaxon</artifactId>
<version>${klaxon.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.exposed</groupId>
<artifactId>exposed</artifactId>
<version>${exposed.version}</version>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2database.version}</version>
</dependency>
</dependencies>
<properties>
<mockito-kotlin.version>1.5.0</mockito-kotlin.version>
<kodein.version>4.1.0</kodein.version>
<klaxon.version>3.0.4</klaxon.version>
<khttp.version>0.1.0</khttp.version>
<commons-math3.version>3.6.1</commons-math3.version>
<junit.platform.version>1.1.1</junit.platform.version>
<junit.vintage.version>5.2.0</junit.vintage.version>
<assertj.version>3.10.0</assertj.version>
<h2database.version>1.4.197</h2database.version>
<exposed.version>0.10.4</exposed.version>
</properties>
</project>

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package com.baeldung.kotlin.exposed
import org.jetbrains.exposed.dao.*
import org.jetbrains.exposed.sql.*
import org.jetbrains.exposed.sql.transactions.TransactionManager
import org.jetbrains.exposed.sql.transactions.transaction
import org.junit.Test
import java.sql.DriverManager
import kotlin.test.*
class ExposedTest {
@Test
fun whenH2Database_thenConnectionSuccessful() {
val database = Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
transaction {
assertEquals(1.4.toBigDecimal(), database.version)
assertEquals("h2", database.vendor)
}
}
@Test
fun whenH2DatabaseWithCredentials_thenConnectionSuccessful() {
Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver", user = "myself", password = "secret")
}
@Test
fun whenH2DatabaseWithManualConnection_thenConnectionSuccessful() {
var connected = false
Database.connect({ connected = true; DriverManager.getConnection("jdbc:h2:mem:test;MODE=MySQL") })
assertEquals(false, connected)
transaction {
addLogger(StdOutSqlLogger)
assertEquals(false, connected)
SchemaUtils.create(Cities)
assertEquals(true, connected)
}
}
@Test
fun whenManualCommit_thenOk() {
Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
transaction {
assertTrue(this is Transaction)
commit()
commit()
commit()
}
}
@Test
fun whenInsert_thenGeneratedKeys() {
Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
transaction {
SchemaUtils.create(StarWarsFilms)
val id = StarWarsFilms.insertAndGetId {
it[name] = "The Last Jedi"
it[sequelId] = 8
it[director] = "Rian Johnson"
}
assertEquals(1, id.value)
val insert = StarWarsFilms.insert {
it[name] = "The Force Awakens"
it[sequelId] = 7
it[director] = "J.J. Abrams"
}
assertEquals(2, insert[StarWarsFilms.id]?.value)
val selectAll = StarWarsFilms.selectAll()
selectAll.forEach {
assertTrue { it[StarWarsFilms.sequelId] >= 7 }
}
StarWarsFilms.slice(StarWarsFilms.name, StarWarsFilms.director).selectAll()
.forEach {
assertTrue { it[StarWarsFilms.name].startsWith("The") }
}
val select = StarWarsFilms.select { (StarWarsFilms.director like "J.J.%") and (StarWarsFilms.sequelId eq 7) }
assertEquals(1, select.count())
StarWarsFilms.update ({ StarWarsFilms.sequelId eq 8 }) {
it[name] = "Episode VIII The Last Jedi"
with(SqlExpressionBuilder) {
it.update(StarWarsFilms.sequelId, StarWarsFilms.sequelId + 1)
}
}
}
}
@Test
fun whenForeignKey_thenAutoJoin() {
Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
transaction {
addLogger(StdOutSqlLogger)
SchemaUtils.create(StarWarsFilms, Players)
StarWarsFilms.insert {
it[name] = "The Last Jedi"
it[sequelId] = 8
it[director] = "Rian Johnson"
}
StarWarsFilms.insert {
it[name] = "The Force Awakens"
it[sequelId] = 7
it[director] = "J.J. Abrams"
}
Players.insert {
it[name] = "Mark Hamill"
it[sequelId] = 7
}
Players.insert {
it[name] = "Mark Hamill"
it[sequelId] = 8
}
val simpleInnerJoin = (StarWarsFilms innerJoin Players).selectAll()
assertEquals(2, simpleInnerJoin.count())
simpleInnerJoin.forEach {
assertNotNull(it[StarWarsFilms.name])
assertEquals(it[StarWarsFilms.sequelId], it[Players.sequelId])
assertEquals("Mark Hamill", it[Players.name])
}
val innerJoinWithCondition = (StarWarsFilms innerJoin Players)
.select { StarWarsFilms.sequelId eq Players.sequelId }
assertEquals(2, innerJoinWithCondition.count())
innerJoinWithCondition.forEach {
assertNotNull(it[StarWarsFilms.name])
assertEquals(it[StarWarsFilms.sequelId], it[Players.sequelId])
assertEquals("Mark Hamill", it[Players.name])
}
val complexInnerJoin = Join(StarWarsFilms, Players, joinType = JoinType.INNER, onColumn = StarWarsFilms.sequelId, otherColumn = Players.sequelId, additionalConstraint = {
StarWarsFilms.sequelId eq 8
}).selectAll()
assertEquals(1, complexInnerJoin.count())
complexInnerJoin.forEach {
assertNotNull(it[StarWarsFilms.name])
assertEquals(it[StarWarsFilms.sequelId], it[Players.sequelId])
assertEquals("Mark Hamill", it[Players.name])
}
}
}
@Test
fun whenJoinWithAlias_thenFun() {
Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
transaction {
addLogger(StdOutSqlLogger)
SchemaUtils.create(StarWarsFilms, Players)
StarWarsFilms.insert {
it[name] = "The Last Jedi"
it[sequelId] = 8
it[director] = "Rian Johnson"
}
StarWarsFilms.insert {
it[name] = "The Force Awakens"
it[sequelId] = 7
it[director] = "J.J. Abrams"
}
val sequel = StarWarsFilms.alias("sequel")
Join(StarWarsFilms, sequel,
additionalConstraint = { sequel[StarWarsFilms.sequelId] eq StarWarsFilms.sequelId + 1 })
.selectAll().forEach {
assertEquals(it[sequel[StarWarsFilms.sequelId]], it[StarWarsFilms.sequelId] + 1)
}
}
}
@Test
fun whenEntity_thenDAO() {
val database = Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
val connection = database.connector.invoke() //Keep a connection open so the DB is not destroyed after the first transaction
val inserted = transaction {
addLogger(StdOutSqlLogger)
SchemaUtils.create(StarWarsFilms, Players)
val theLastJedi = StarWarsFilm.new {
name = "The Last Jedi"
sequelId = 8
director = "Rian Johnson"
}
assertFalse(TransactionManager.current().entityCache.inserts.isEmpty())
assertEquals(1, theLastJedi.id.value) //Reading this causes a flush
assertTrue(TransactionManager.current().entityCache.inserts.isEmpty())
theLastJedi
}
transaction {
val theLastJedi = StarWarsFilm.findById(1)
assertNotNull(theLastJedi)
assertEquals(inserted.id, theLastJedi?.id)
}
connection.close()
}
@Test
fun whenManyToOne_thenNavigation() {
val database = Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
val connection = database.connector.invoke()
transaction {
addLogger(StdOutSqlLogger)
SchemaUtils.create(StarWarsFilms, Players, Users, UserRatings)
val theLastJedi = StarWarsFilm.new {
name = "The Last Jedi"
sequelId = 8
director = "Rian Johnson"
}
val someUser = User.new {
name = "Some User"
}
val rating = UserRating.new {
value = 9
user = someUser
film = theLastJedi
}
assertEquals(theLastJedi, rating.film)
assertEquals(someUser, rating.user)
assertEquals(rating, theLastJedi.ratings.first())
}
transaction {
val theLastJedi = StarWarsFilm.find { StarWarsFilms.sequelId eq 8 }.first()
val ratings = UserRating.find { UserRatings.film eq theLastJedi.id }
assertEquals(1, ratings.count())
val rating = ratings.first()
assertEquals("Some User", rating.user.name)
assertEquals(rating, theLastJedi.ratings.first())
UserRating.new {
value = 8
user = rating.user
film = theLastJedi
}
assertEquals(2, theLastJedi.ratings.count())
}
connection.close()
}
@Test
fun whenManyToMany_thenAssociation() {
val database = Database.connect("jdbc:h2:mem:test", driver = "org.h2.Driver")
val connection = database.connector.invoke()
val film = transaction {
SchemaUtils.create(StarWarsFilms)
StarWarsFilm.new {
name = "The Last Jedi"
sequelId = 8
director = "Rian Johnson"
}
}
val actor = transaction {
SchemaUtils.create(Actors)
Actor.new {
firstname = "Daisy"
lastname = "Ridley"
}
}
transaction {
SchemaUtils.create(StarWarsFilmActors)
film.actors = SizedCollection(listOf(actor))
}
connection.close()
}
}
object Cities: IntIdTable() {
val name = varchar("name", 50)
}
object StarWarsFilms_Simple : Table() {
val id = integer("id").autoIncrement().primaryKey()
val sequelId = integer("sequel_id").uniqueIndex()
val name = varchar("name", 50)
val director = varchar("director", 50)
}
object StarWarsFilms : IntIdTable() {
val sequelId = integer("sequel_id").uniqueIndex()
val name = varchar("name", 50)
val director = varchar("director", 50)
}
object Players : Table() {
//val sequelId = integer("sequel_id").uniqueIndex().references(StarWarsFilms.sequelId)
val sequelId = reference("sequel_id", StarWarsFilms.sequelId).uniqueIndex()
//val filmId = reference("film_id", StarWarsFilms).nullable()
val name = varchar("name", 50)
}
class StarWarsFilm(id: EntityID<Int>) : Entity<Int>(id) {
companion object : EntityClass<Int, StarWarsFilm>(StarWarsFilms)
var sequelId by StarWarsFilms.sequelId
var name by StarWarsFilms.name
var director by StarWarsFilms.director
var actors by Actor via StarWarsFilmActors
val ratings by UserRating referrersOn UserRatings.film
}
object Users: IntIdTable() {
val name = varchar("name", 50)
}
object UserRatings: IntIdTable() {
val value = long("value")
val film = reference("film", StarWarsFilms)
val user = reference("user", Users)
}
class User(id: EntityID<Int>): IntEntity(id) {
companion object : IntEntityClass<User>(Users)
var name by Users.name
}
class UserRating(id: EntityID<Int>): IntEntity(id) {
companion object : IntEntityClass<UserRating>(UserRatings)
var value by UserRatings.value
var film by StarWarsFilm referencedOn UserRatings.film
var user by User referencedOn UserRatings.user
}
object Actors: IntIdTable() {
val firstname = varchar("firstname", 50)
val lastname = varchar("lastname", 50)
}
class Actor(id: EntityID<Int>): IntEntity(id) {
companion object : IntEntityClass<Actor>(Actors)
var firstname by Actors.firstname
var lastname by Actors.lastname
}
object StarWarsFilmActors : Table() {
val starWarsFilm = reference("starWarsFilm", StarWarsFilms).primaryKey(0)
val actor = reference("actor", Actors).primaryKey(1)
}