diff --git a/.gitignore b/.gitignore index 729dea62d5..d3a5dae06d 100644 --- a/.gitignore +++ b/.gitignore @@ -73,8 +73,6 @@ ninja/devDb.mv.db **/out-tsc **/nbproject/ **/nb-configuration.xml -core-scala/.cache-main -core-scala/.cache-tests persistence-modules/hibernate5/transaction.log diff --git a/core-scala/README.md b/core-scala/README.md deleted file mode 100644 index 13929ff721..0000000000 --- a/core-scala/README.md +++ /dev/null @@ -1,8 +0,0 @@ -## Core Scala - -This module contains articles about Scala's core features - -### Relevant Articles: - -- [Introduction to Scala](https://www.baeldung.com/scala-intro) -- [Regular Expressions in Scala](https://www.baeldung.com/scala/regular-expressions) diff --git a/core-scala/pom.xml b/core-scala/pom.xml deleted file mode 100644 index d72727dd39..0000000000 --- a/core-scala/pom.xml +++ /dev/null @@ -1,55 +0,0 @@ - - - 4.0.0 - core-scala - 1.0-SNAPSHOT - core-scala - jar - - - com.baeldung - parent-modules - 1.0.0-SNAPSHOT - - - - - org.scala-lang - scala-library - ${scala.version} - - - - - src/main/scala - src/test/scala - - - net.alchim31.maven - scala-maven-plugin - ${scala.plugin.version} - - - - compile - testCompile - - - - -dependencyfile - ${project.build.directory}/.scala_dependencies - - - - - - - - - - 2.12.7 - 3.3.2 - - - diff --git a/core-scala/src/main/scala/com/baeldung/scala/ControlStructuresDemo.scala b/core-scala/src/main/scala/com/baeldung/scala/ControlStructuresDemo.scala deleted file mode 100644 index 7c1281e573..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/ControlStructuresDemo.scala +++ /dev/null @@ -1,44 +0,0 @@ -package com.baeldung.scala - -/** - * Sample code demonstrating the various control structured. - * - * @author Chandra Prakash - * - */ -object ControlStructuresDemo { - def gcd(x : Int, y : Int) : Int = { - if (y == 0) x else gcd(y, x % y) - } - - def gcdIter(x : Int, y : Int) : Int = { - var a = x - var b = y - while (b > 0) { - a = a % b - val t = a - a = b - b = t - } - a - } - - def rangeSum(a : Int, b : Int) = { - var sum = 0; - for (i <- a to b) { - sum += i - } - sum - } - - def factorial(a : Int) : Int = { - var result = 1; - var i = 1; - do { - result *= i - i = i + 1 - } while (i <= a) - result - } - -} \ No newline at end of file diff --git a/core-scala/src/main/scala/com/baeldung/scala/Employee.scala b/core-scala/src/main/scala/com/baeldung/scala/Employee.scala deleted file mode 100644 index 9291d958b3..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/Employee.scala +++ /dev/null @@ -1,27 +0,0 @@ -package com.baeldung.scala - -/** - * Sample Code demonstrating a class. - * - * @author Chandra Prakash - * - */ -class Employee(val name : String, - var salary : Int, - annualIncrement : Int = 20) { - - def incrementSalary() : Unit = { - salary += annualIncrement - } - - override def toString = - s"Employee(name=$name, salary=$salary)" -} - -/** - * A Trait which will make the toString return upper case value. - */ -trait UpperCasePrinter { - override def toString: String = super.toString toUpperCase -} - diff --git a/core-scala/src/main/scala/com/baeldung/scala/HelloWorld.scala b/core-scala/src/main/scala/com/baeldung/scala/HelloWorld.scala deleted file mode 100644 index b3f0ce09a5..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/HelloWorld.scala +++ /dev/null @@ -1,6 +0,0 @@ -package com.baeldung.scala - -object HelloWorld extends App { - println("Hello World!") - args foreach println -} diff --git a/core-scala/src/main/scala/com/baeldung/scala/HigherOrderFunctions.scala b/core-scala/src/main/scala/com/baeldung/scala/HigherOrderFunctions.scala deleted file mode 100644 index 02c41a5f8c..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/HigherOrderFunctions.scala +++ /dev/null @@ -1,27 +0,0 @@ -package com.baeldung.scala - -/** - * Sample higher order functions. - * - * @author Chandra Prakash - * - */ -object HigherOrderFunctions { - - def mapReduce(r : (Int, Int) => Int, - i : Int, - m : Int => Int, - a : Int, b : Int): Int = { - def iter(a : Int, result : Int) : Int = { - if (a > b) result - else iter(a + 1, r(m(a), result)) - } - iter(a, i) - } - - def whileLoop(condition : => Boolean)(body : => Unit) : Unit = - if (condition) { - body - whileLoop(condition)(body) - } -} \ No newline at end of file diff --git a/core-scala/src/main/scala/com/baeldung/scala/IntSet.scala b/core-scala/src/main/scala/com/baeldung/scala/IntSet.scala deleted file mode 100644 index f1a5722a4e..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/IntSet.scala +++ /dev/null @@ -1,34 +0,0 @@ -package com.baeldung.scala - -/** - * An abstract class for set of integers and its implementation. - * - * @author Chandra Prakash - * - */ -abstract class IntSet { - // add an element to the set - def incl(x : Int) : IntSet - - // whether an element belongs to the set - def contains(x : Int) : Boolean -} - -class EmptyIntSet extends IntSet { - - def contains(x : Int) : Boolean = false - - def incl(x : Int) = - new NonEmptyIntSet(x, this) -} - -class NonEmptyIntSet(val head : Int, val tail : IntSet) - extends IntSet { - - def contains(x : Int) : Boolean = - head == x || (tail contains x) - - def incl(x : Int) : IntSet = - if (this contains x) this - else new NonEmptyIntSet(x, this) -} \ No newline at end of file diff --git a/core-scala/src/main/scala/com/baeldung/scala/PatternMatching.scala b/core-scala/src/main/scala/com/baeldung/scala/PatternMatching.scala deleted file mode 100644 index 71458237d6..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/PatternMatching.scala +++ /dev/null @@ -1,137 +0,0 @@ -package com.baeldung.scala - -// Case Class -abstract class Animal - -case class Mammal(name: String, fromSea: Boolean) extends Animal - -case class Bird(name: String) extends Animal - -case class Fish(name: String) extends Animal - -// Sealed Class -sealed abstract class CardSuit - -case class Spike() extends CardSuit - -case class Diamond() extends CardSuit - -case class Heart() extends CardSuit - -case class Club() extends CardSuit - -object Person { - def apply(fullName: String) = fullName - - def unapply(fullName: String): Option[String] = { - if (!fullName.isEmpty) - Some(fullName.replaceAll("(?<=\\w)(\\w+)", ".")) - else - None - } -} - -class PatternMatching { - - def caseClassesPatternMatching(animal: Animal): String = { - animal match { - case Mammal(name, fromSea) => s"I'm a $name, a kind of mammal. Am I from the sea? $fromSea" - case Bird(name) => s"I'm a $name, a kind of bird" - case _ => "I'm an unknown animal" - } - } - - def constantsPatternMatching(constant: Any): String = { - constant match { - case 0 => "I'm equal to zero" - case 4.5d => "I'm a double" - case false => "I'm the contrary of true" - case _ => s"I'm unknown and equal to $constant" - } - } - - def sequencesPatternMatching(sequence: Any): String = { - sequence match { - case List(singleElement) => s"I'm a list with one element: $singleElement" - case List(_, _*) => s"I'm a list with one or multiple elements: $sequence" - case Vector(1, 2, _*) => s"I'm a vector: $sequence" - case _ => s"I'm an unrecognized sequence. My value: $sequence" - } - } - - def tuplesPatternMatching(tuple: Any): String = { - tuple match { - case (first, second) => s"I'm a tuple with two elements: $first & $second" - case (first, second, third) => s"I'm a tuple with three elements: $first & $second & $third" - case _ => s"Unrecognized pattern. My value: $tuple" - } - } - - def typedPatternMatching(any: Any): String = { - any match { - case string: String => s"I'm a string. My value: $string" - case integer: Int => s"I'm an integer. My value: $integer" - case _ => s"I'm from an unknown type. My value: $any" - } - } - - def regexPatterns(toMatch: String): String = { - val numeric = """([0-9]+)""".r - val alphabetic = """([a-zA-Z]+)""".r - val alphanumeric = """([a-zA-Z0-9]+)""".r - - toMatch match { - case numeric(value) => s"I'm a numeric with value $value" - case alphabetic(value) => s"I'm an alphabetic with value $value" - case alphanumeric(value) => s"I'm an alphanumeric with value $value" - case _ => s"I contain other characters than alphanumerics. My value $toMatch" - } - } - - def optionsPatternMatching(option: Option[String]): String = { - option match { - case Some(value) => s"I'm not an empty option. Value $value" - case None => "I'm an empty option" - } - } - - def patternGuards(toMatch: Any, maxLength: Int): String = { - toMatch match { - case list: List[Any] if (list.size <= maxLength) => "List is of acceptable size" - case list: List[Any] => "List has not an acceptable size" - case string: String if (string.length <= maxLength) => "String is of acceptable size" - case string: String => "String has not an acceptable size" - case _ => "Input is neither a List or a String" - } - } - - def sealedClass(cardSuit: CardSuit): String = { - cardSuit match { - case Spike() => "Card is spike" - case Club() => "Card is club" - case Heart() => "Card is heart" - case Diamond() => "Card is diamond" - } - } - - def extractors(person: Any): String = { - person match { - case Person(initials) => s"My initials are $initials" - case _ => "Could not extract initials" - } - } - - def closuresPatternMatching(list: List[Any]): List[Any] = { - list.collect { case i: Int if (i < 10) => i } - } - - def catchBlocksPatternMatching(exception: Exception): String = { - try { - throw exception - } catch { - case ex: IllegalArgumentException => "It's an IllegalArgumentException" - case ex: RuntimeException => "It's a RuntimeException" - case _ => "It's an unknown kind of exception" - } - } -} \ No newline at end of file diff --git a/core-scala/src/main/scala/com/baeldung/scala/Utils.scala b/core-scala/src/main/scala/com/baeldung/scala/Utils.scala deleted file mode 100644 index 20bc413646..0000000000 --- a/core-scala/src/main/scala/com/baeldung/scala/Utils.scala +++ /dev/null @@ -1,33 +0,0 @@ -package com.baeldung.scala - -/** - * Some utility methods. - * - * @author Chandra Prakash - * - */ -object Utils { - def average(x : Double, y : Double): Double = (x + y) / 2 - - def randomLessThan(d : Double): Double = { - var random = 0d - do { - random = Math.random() - } while (random >= d) - random - } - - def power(x : Int, y : Int) : Int = { - def powNested(i : Int, accumulator : Int) : Int = { - if (i <= 0) accumulator - else powNested(i - 1, x * accumulator) - } - powNested(y, 1) - } - - def fibonacci(n : Int) : Int = n match { - case 0 | 1 => 1 - case x if x > 1 => - fibonacci(x - 1) + fibonacci(x - 2) - } -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/ControlStructuresDemoUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/ControlStructuresDemoUnitTest.scala deleted file mode 100644 index 584038ee2c..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/ControlStructuresDemoUnitTest.scala +++ /dev/null @@ -1,33 +0,0 @@ -package com.baeldung.scala - -import com.baeldung.scala.ControlStructuresDemo._ -import org.junit.Assert.assertEquals -import org.junit.Test - -class ControlStructuresDemoUnitTest { - @Test - def givenTwoIntegers_whenGcdCalled_thenCorrectValueReturned() = { - assertEquals(3, gcd(15, 27)) - } - - @Test - def givenTwoIntegers_whenGcdIterCalled_thenCorrectValueReturned() = { - assertEquals(3, gcdIter(15, 27)) - } - - @Test - def givenTwoIntegers_whenRangeSumcalled_thenCorrectValueReturned() = { - assertEquals(55, rangeSum(1, 10)) - } - - @Test - def givenPositiveInteger_whenFactorialInvoked_thenCorrectValueReturned() = { - assertEquals(720, factorial(6)) - } - - @Test - def whenFactorialOf0Invoked_then1Returned() = { - assertEquals(1, factorial(0)) - } - -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/EmployeeUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/EmployeeUnitTest.scala deleted file mode 100644 index 0828752a8a..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/EmployeeUnitTest.scala +++ /dev/null @@ -1,30 +0,0 @@ -package com.baeldung.scala - -import org.junit.Assert.assertEquals -import org.junit.Test - -class EmployeeUnitTest { - - @Test - def whenEmployeeSalaryIncremented_thenCorrectSalary() = { - val employee = new Employee("John Doe", 1000) - employee.incrementSalary() - assertEquals(1020, employee.salary) - } - - @Test - def givenEmployee_whenToStringCalled_thenCorrectStringReturned() = { - val employee = new Employee("John Doe", 1000) - assertEquals("Employee(name=John Doe, salary=1000)", employee.toString) - } - - @Test - def givenEmployeeWithTrait_whenToStringCalled_thenCorrectStringReturned() = { - val employee = - new Employee("John Doe", 1000) with UpperCasePrinter - assertEquals("EMPLOYEE(NAME=JOHN DOE, SALARY=1000)", employee.toString) - } - -} - - diff --git a/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsExamplesUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsExamplesUnitTest.scala deleted file mode 100644 index cb43266a48..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsExamplesUnitTest.scala +++ /dev/null @@ -1,82 +0,0 @@ -package com.baeldung.scala - -import org.junit.Assert.assertEquals -import org.junit.Test - - -class HigherOrderFunctionsExamplesUnitTest { - - @Test - def whenCallingMapWithAnonymousFunction_thenTransformationIsApplied() = { - val expected = Seq("sir Alex Ferguson", "sir Bobby Charlton", "sir Frank Lampard") - - val names = Seq("Alex Ferguson", "Bobby Charlton", "Frank Lampard") - val sirNames = names.map(name => "sir " + name) - - assertEquals(expected, sirNames) - } - - @Test - def whenCallingMapWithDefined_thenTransformationIsApplied() = { - val expected = Seq("sir Alex Ferguson", "sir Bobby Charlton", "sir Frank Lampard") - - val names = Seq("Alex Ferguson", "Bobby Charlton", "Frank Lampard") - - def prefixWithSir(name: String) = "sir " + name - val sirNames = names.map(prefixWithSir) - - assertEquals(expected, sirNames) - } - - @Test - def whenCallingFilter_thenUnecessaryElementsAreRemoved() = { - val expected = Seq("John O'Shea", "John Hartson") - - val names = Seq("John O'Shea", "Aiden McGeady", "John Hartson") - val johns = names.filter(name => name.matches("^John .*")) - - assertEquals(expected, johns) - } - - @Test - def whenCallingReduce_thenProperSumIsCalculated() = { - val expected = 2750 - - val earnings = Seq(1000, 1300, 450) - val sumEarnings = earnings.reduce((acc, x) => acc + x) - - assertEquals(expected, sumEarnings) - } - - @Test - def whenCallingFold_thenNumberOfWordsShouldBeCalculated() = { - val expected = 6 - - val strings = Seq("bunch of words", "just me", "it") - val sumEarnings = strings.foldLeft(0)((acc, x) => acc + x.split(" ").size) - - assertEquals(expected, sumEarnings) - } - - @Test - def whenCallingOwnHigherOrderFunction_thenProperFunctionIsReturned() = { - def mathOperation(name: String): (Int, Int) => Int = (x: Int, y: Int) => { - name match { - case "addition" => x + y - case "multiplication" => x * y - case "division" => x/y - case "subtraction" => x - y - } - } - - def add: (Int, Int) => Int = mathOperation("addition") - def mul: (Int, Int) => Int = mathOperation("multiplication") - def div: (Int, Int) => Int = mathOperation("division") - def sub: (Int, Int) => Int = mathOperation("subtraction") - - assertEquals(15, add(10, 5)) - assertEquals(50, mul(10, 5)) - assertEquals(2, div(10, 5)) - assertEquals(5, sub(10, 5)) - } -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsUnitTest.scala deleted file mode 100644 index 240c879d7f..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/HigherOrderFunctionsUnitTest.scala +++ /dev/null @@ -1,48 +0,0 @@ -package com.baeldung.scala - -import com.baeldung.scala.HigherOrderFunctions.mapReduce -import org.junit.Assert.assertEquals -import org.junit.Test - -class HigherOrderFunctionsUnitTest { - - @Test - def whenCalledWithSumAndSquareFunctions_thenCorrectValueReturned() = { - def square(x : Int) = x * x - - def sum(x : Int, y : Int) = x + y - - def sumSquares(a : Int, b : Int) = - mapReduce(sum, 0, square, a, b) - - assertEquals(385, sumSquares(1, 10)) - } - - @Test - def whenComputingSumOfSquaresWithAnonymousFunctions_thenCorrectValueReturned() = { - def sumSquares(a : Int, b : Int) = - mapReduce((x, y) => x + y, 0, x => x * x, a, b) - - assertEquals(385, sumSquares(1, 10)) - } - - @Test - def givenCurriedFunctions_whenInvoked_thenCorrectValueReturned() = { - // a curried function - def sum(f : Int => Int)(a : Int, - b : Int) : Int = - if (a > b) 0 else f(a) + sum(f)(a + 1, b) - - // another curried function - def mod(n : Int)(x : Int) = x % n - - // application of a curried function - assertEquals(1, mod(5)(6)) - - // partial application of curried function - // trailing underscore is required to make function type explicit - val sumMod5 = sum(mod(5)) _ - - assertEquals(10, sumMod5(6, 10)) - } -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/IntSetUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/IntSetUnitTest.scala deleted file mode 100644 index ac27389d70..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/IntSetUnitTest.scala +++ /dev/null @@ -1,21 +0,0 @@ -package com.baeldung.scala - -import org.junit.Assert.assertFalse -import org.junit.Test - -class IntSetUnitTest { - - @Test - def givenSetof1To10_whenContains11Called_thenFalse() = { - - // Set up a set containing integers 1 to 10. - val set1To10 = - Range(1, 10) - .foldLeft(new EmptyIntSet() : IntSet) { - (x, y) => x incl y - } - - assertFalse(set1To10 contains 11) - } - -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/PatternMatchingUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/PatternMatchingUnitTest.scala deleted file mode 100644 index 21a2f0e871..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/PatternMatchingUnitTest.scala +++ /dev/null @@ -1,208 +0,0 @@ -package com.baeldung.scala - -import java.io.FileNotFoundException - -import org.junit.Assert.assertEquals -import org.junit.Test - -class PatternMatchingUnitTest { - @Test - def whenAMammalIsGivenToTheMatchExpression_ThenItsRecognizedAsMammal(): Unit = { - val result = new PatternMatching().caseClassesPatternMatching(Mammal("Lion", fromSea = false)) - assertEquals("I'm a Lion, a kind of mammal. Am I from the sea? false", result) - } - - @Test - def whenABirdIsGivenToTheMatchExpression_ThenItsRecognizedAsBird(): Unit = { - val result = new PatternMatching().caseClassesPatternMatching(Bird("Pigeon")) - assertEquals("I'm a Pigeon, a kind of bird", result) - } - - @Test - def whenAnUnkownAnimalIsGivenToTheMatchExpression_TheDefaultClauseIsUsed(): Unit = { - val result = new PatternMatching().caseClassesPatternMatching(Fish("Tuna")) - assertEquals("I'm an unknown animal", result) - } - - @Test - def whenTheConstantZeroIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().constantsPatternMatching(0) - assertEquals("I'm equal to zero", result) - } - - @Test - def whenFourAndAHalfIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().constantsPatternMatching(4.5d) - assertEquals("I'm a double", result) - } - - @Test - def whenTheBooleanFalseIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().constantsPatternMatching(false) - assertEquals("I'm the contrary of true", result) - } - - @Test - def whenAnUnkownConstantIsPassed_ThenTheDefaultPatternIsUsed(): Unit = { - val result = new PatternMatching().constantsPatternMatching(true) - assertEquals("I'm unknown and equal to true", result) - } - - @Test - def whenASingleElementListIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().sequencesPatternMatching(List("String")) - assertEquals("I'm a list with one element: String", result) - } - - @Test - def whenAMultipleElementsListIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().sequencesPatternMatching(List("Multiple", "Elements")) - assertEquals("I'm a list with one or multiple elements: List(Multiple, Elements)", result) - } - - @Test - def whenAVectorBeginningWithOneAndTwoIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().sequencesPatternMatching(Vector(1, 2, 3)) - assertEquals("I'm a vector: Vector(1, 2, 3)", result) - } - - @Test - def whenANotMatchingVectorIsPassed_ThenItShouldntMatchAndEnterTheDefaultClause(): Unit = { - val result = new PatternMatching().sequencesPatternMatching(Vector(2, 1)) - assertEquals("I'm an unrecognized sequence. My value: Vector(2, 1)", result) - } - - @Test - def whenAnEmptyListIsPassed_ThenItShouldntMatchAndEnterTheDefaultClause(): Unit = { - val result = new PatternMatching().sequencesPatternMatching(List()) - assertEquals("I'm an unrecognized sequence. My value: List()", result) - } - - @Test - def whenATwoElementsTupleIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().tuplesPatternMatching(("First", "Second")) - assertEquals("I'm a tuple with two elements: First & Second", result) - } - - @Test - def whenAThreeElementsTupleIsPassed_ThenItMatchesTheCorrespondingPattern(): Unit = { - val result = new PatternMatching().tuplesPatternMatching(("First", "Second", "Third")) - assertEquals("I'm a tuple with three elements: First & Second & Third", result) - } - - @Test - def whenAnoterKindOfTupleIsPassed_ThenItShouldntMatchAndReturnTheDefaultPattern(): Unit = { - val result = new PatternMatching().tuplesPatternMatching(("First")) - assertEquals("Unrecognized pattern. My value: First", result) - } - - @Test - def whenAStringConsistingOfNumericsOnlyIsPassed_ThenItShouldMatchTheNumericRegex(): Unit = { - val result = new PatternMatching().regexPatterns("123") - assertEquals("I'm a numeric with value 123", result) - } - - @Test - def whenAStringConsistignOfAlphabeticsOnlyIsPassed_ThenItShouldMatchTheAlphabeticRegex(): Unit = { - val result = new PatternMatching().regexPatterns("abc") - assertEquals("I'm an alphabetic with value abc", result) - } - - @Test - def whenAStringConsistignOfAlphanumericsOnlyIsPassed_ThenItShouldMatchTheAlphanumericRegex(): Unit = { - val result = new PatternMatching().regexPatterns("abc123") - assertEquals("I'm an alphanumeric with value abc123", result) - } - - @Test - def whenAnotherTypeOfStringIsPassed_ThenItShouldntMatchAndReturnTheDefaultPattern(): Unit = { - val result = new PatternMatching().regexPatterns("abc_123") - assertEquals("I contain other characters than alphanumerics. My value abc_123", result) - } - - @Test - def whenAFilledOptionIsPassed_ThenItShouldMatchTheSomeClause(): Unit = { - val result = new PatternMatching().optionsPatternMatching(Option.apply("something")) - assertEquals("I'm not an empty option. Value something", result) - } - - @Test - def whenAnEmptyOptionIsPassed_ThenItShouldMatchTheNoneClause(): Unit = { - val result = new PatternMatching().optionsPatternMatching(Option.empty) - assertEquals("I'm an empty option", result) - } - - @Test - def whenAListWithAcceptedSizeIsPassed_ThenThePositiveMessageIsSent(): Unit = { - val result = new PatternMatching().patternGuards(List(1, 2), 3) - assertEquals("List is of acceptable size", result) - } - - @Test - def whenAListWithAnUnacceptedSizeIsPassed_ThenTheNegativeMessageIsSent(): Unit = { - val result = new PatternMatching().patternGuards(List(1, 2, 3, 4), 3) - assertEquals("List has not an acceptable size", result) - } - - @Test - def whenAStringWithAcceptedSizeIsPassed_ThenThePositiveMessageIsSent(): Unit = { - val result = new PatternMatching().patternGuards("OK", 3) - assertEquals("String is of acceptable size", result) - } - - @Test - def whenAStringWithAnUnacceptedSizeIsPassed_ThenTheNegativeMessageIsSent(): Unit = { - val result = new PatternMatching().patternGuards("Not OK", 3) - assertEquals("String has not an acceptable size", result) - } - - @Test - def whenAnObjectWhichIsNotAListOrAStringIsPassed_thenTheDefaultClauseIsUsed(): Unit = { - val result = new PatternMatching().patternGuards(1, 1) - assertEquals("Input is neither a List or a String", result) - } - - @Test - def whenACardSuitIsPassed_ThenTheCorrespondingMatchCaseClauseIsUsed(): Unit = { - assertEquals("Card is spike", new PatternMatching().sealedClass(Spike())) - assertEquals("Card is club", new PatternMatching().sealedClass(Club())) - assertEquals("Card is heart", new PatternMatching().sealedClass(Heart())) - assertEquals("Card is diamond", new PatternMatching().sealedClass(Diamond())) - } - - @Test - def whenAnObjectWithExtractorIsPassed_ThenTheExtractedValueIsUsedInTheCaseClause(): Unit = { - val person = Person("John Smith") - val result = new PatternMatching().extractors(person) - assertEquals("My initials are J. S.", result) - } - - @Test - def whenAnObjectWithExtractorIsPassed_AndTheValueIsEmpty_ThenTheDefaultCaseClauseIsUsed(): Unit = { - val person = Person("") - val result = new PatternMatching().extractors(person) - assertEquals("Could not extract initials", result) - } - - @Test - def whenAListOfRandomElementsIsPassed_ThenOnlyTheIntegersBelowTenAreReturned(): Unit = { - val input = List(1, 2, "5", 11, true) - val result = new PatternMatching().closuresPatternMatching(input) - assertEquals(List(1, 2), result) - } - - @Test - def whenAnExceptionIsPassed_ThenTheCorrespondingMessageIsReturned(): Unit = { - val pm = new PatternMatching() - - val iae = new IllegalArgumentException() - val re = new RuntimeException() - val fnfe = new FileNotFoundException() - - assertEquals("It's an IllegalArgumentException", pm.catchBlocksPatternMatching(iae)) - assertEquals("It's a RuntimeException", pm.catchBlocksPatternMatching(re)) - assertEquals("It's an unknown kind of exception", pm.catchBlocksPatternMatching(fnfe)) - } -} - - diff --git a/core-scala/src/test/scala/com/baeldung/scala/UtilsUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/UtilsUnitTest.scala deleted file mode 100644 index e4995201d8..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/UtilsUnitTest.scala +++ /dev/null @@ -1,32 +0,0 @@ -package com.baeldung.scala - -import com.baeldung.scala.Utils.{average, fibonacci, power, randomLessThan} -import org.junit.Assert.{assertEquals, assertTrue} -import org.junit.Test - -class UtilsUnitTest { - - @Test - def whenAverageCalled_thenCorrectValueReturned(): Unit = { - assertEquals(15.0, average(10, 20), 1e-5) - } - - @Test - def whenRandomLessThanInvokedWithANumber_thenARandomLessThanItReturned: Unit = { - val d = 0.1 - assertTrue(randomLessThan(d) < d) - } - - @Test - def whenPowerInvokedWith2And3_then8Returned: Unit = { - assertEquals(8, power(2, 3)) - } - - @Test - def whenFibonacciCalled_thenCorrectValueReturned: Unit = { - assertEquals(1, fibonacci(0)) - assertEquals(1, fibonacci(1)) - assertEquals(fibonacci(6), - fibonacci(4) + fibonacci(5)) - } -} \ No newline at end of file diff --git a/core-scala/src/test/scala/com/baeldung/scala/regex/RegexUnitTest.scala b/core-scala/src/test/scala/com/baeldung/scala/regex/RegexUnitTest.scala deleted file mode 100644 index 27ed9e1172..0000000000 --- a/core-scala/src/test/scala/com/baeldung/scala/regex/RegexUnitTest.scala +++ /dev/null @@ -1,73 +0,0 @@ -package com.baeldung.scala.regex - -import org.junit.Test -import org.junit.Assert.assertEquals - -class RegexUnitTest { - private val polishPostalCode = "([0-9]{2})\\-([0-9]{3})".r - private val timestamp = "([0-9]{2}):([0-9]{2}):([0-9]{2}).([0-9]{3})".r - private val timestampUnanchored = timestamp.unanchored - - @Test - def givenRegularExpression_whenCallingFindFirstIn_thenShouldFindCorrectMatches(): Unit = { - val postCode = polishPostalCode.findFirstIn("Warsaw 01-011, Jerusalem Avenue") - assertEquals(Some("01-011"), postCode) - } - - @Test - def givenRegularExpression_whenCallingFindFirstMatchIn_thenShouldFindCorrectMatches(): Unit = { - val postCodes = polishPostalCode.findFirstMatchIn("Warsaw 01-011, Jerusalem Avenue") - assertEquals(Some("011"), for (m <- postCodes) yield m.group(2)) - } - - @Test - def givenRegularExpression_whenCallingFindAllIn_thenShouldFindCorrectMatches(): Unit = { - val postCodes = polishPostalCode.findAllIn("Warsaw 01-011, Jerusalem Avenue, Cracow 30-059, Mickiewicza Avenue") - .toList - assertEquals(List("01-011", "30-059"), postCodes) - - polishPostalCode.findAllIn("Warsaw 01-011, Jerusalem Avenue, Cracow 30-059, Mickiewicza Avenue") - } - - @Test - def givenRegularExpression_whenCallingFindAlMatchlIn_thenShouldFindCorrectMatches(): Unit = { - val postCodes = polishPostalCode.findAllMatchIn("Warsaw 01-011, Jerusalem Avenue, Cracow 30-059, Mickiewicza Avenue") - .toList - val postalDistricts = for (m <- postCodes) yield m.group(1) - assertEquals(List("01", "30"), postalDistricts) - } - - @Test - def givenRegularExpression_whenExtractingValues_thenShouldExtractCorrectValues(): Unit = { - val description = "11:34:01.411" match { - case timestamp(hour, minutes, _, _) => s"It's $minutes minutes after $hour" - } - - assertEquals("It's 34 minutes after 11", description) - } - - @Test - def givenUnanchoredRegularExpression_whenExtractingValues_thenShouldExtractCorrectValues(): Unit = { - val description = "Timestamp: 11:34:01.411 error appeared" match { - case timestampUnanchored(hour, minutes, _, _) => s"It's $minutes minutes after $hour" - } - - assertEquals("It's 34 minutes after 11", description) - } - - @Test - def givenRegularExpression_whenCallingReplaceAllIn_thenShouldReplaceText(): Unit = { - val minutes = timestamp.replaceAllIn("11:34:01.311", m => m.group(2)) - - assertEquals("34", minutes) - } - - @Test - def givenRegularExpression_whenCallingReplaceAllInWithMatcher_thenShouldReplaceText(): Unit = { - val secondsThatDayInTotal = timestamp.replaceAllIn("11:34:01.311", _ match { - case timestamp(hours, minutes, seconds, _) => s"$hours-$minutes" - }) - - assertEquals("11-34", secondsThatDayInTotal) - } -} diff --git a/pom.xml b/pom.xml index 6a78faca23..84b1d31c61 100644 --- a/pom.xml +++ b/pom.xml @@ -394,7 +394,6 @@ core-java-modules core-kotlin-modules - core-scala couchbase custom-pmd @@ -907,7 +906,6 @@ core-java-modules core-kotlin-modules - core-scala couchbase custom-pmd