From dc9a78ab18018f55764b4e64ca26c706211876c5 Mon Sep 17 00:00:00 2001
From: David Calap <dcalap@gmail.com>
Date: Tue, 1 Oct 2019 23:33:50 +0200
Subject: [PATCH 1/3] BAEL-3323 Finding an element in a list using Kotlin -
 Initial commit

---
 .../kotlin/com/baeldung/lists/ListsTest.kt    | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt

diff --git a/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt
new file mode 100644
index 0000000000..8515a6f078
--- /dev/null
+++ b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt
@@ -0,0 +1,25 @@
+package com.baeldung.lambda
+
+import org.junit.jupiter.api.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class ListsTest {
+
+    var batmans: List<String> = listOf("Christian Bale", "Michael Keaton", "Ben Affleck", "George Clooney")
+
+    @Test
+    fun whenFindASpecificItem_thenItemIsReturned() {
+        //Returns the first element matching the given predicate, or null if no such element was found.
+        val theFirstBatman = batmans.find { actor -> "Michael Keaton".equals(actor) }
+        assertEquals(theFirstBatman, "Michael Keaton")
+    }
+
+    @Test
+    fun whenFilterWithPredicate_thenMatchingItemsAreReturned() {
+        //Returns a list containing only elements matching the given predicate.
+        val theCoolestBatmans = batmans.filter { actor -> actor.contains("a") }
+        assertTrue(theCoolestBatmans.contains("Christian Bale") && theCoolestBatmans.contains("Michael Keaton"))
+    }
+
+}
\ No newline at end of file

From 30bf670ba4514a54d082f726965e1ca092a93f8e Mon Sep 17 00:00:00 2001
From: David Calap <david.calap@nexthink.com>
Date: Wed, 2 Oct 2019 09:19:21 +0200
Subject: [PATCH 2/3] BAEL-3323 filterNot example added. Rename package, class
 and file

---
 .../baeldung/lists/{ListsTest.kt => ListsUnitTest.kt} | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
 rename core-kotlin-2/src/test/kotlin/com/baeldung/lists/{ListsTest.kt => ListsUnitTest.kt} (68%)

diff --git a/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
similarity index 68%
rename from core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt
rename to core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
index 8515a6f078..1e7136d08b 100644
--- a/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsTest.kt
+++ b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
@@ -1,10 +1,10 @@
-package com.baeldung.lambda
+package com.baeldung.lists
 
 import org.junit.jupiter.api.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertTrue
 
-class ListsTest {
+class ListsUnitTest {
 
     var batmans: List<String> = listOf("Christian Bale", "Michael Keaton", "Ben Affleck", "George Clooney")
 
@@ -22,4 +22,11 @@ class ListsTest {
         assertTrue(theCoolestBatmans.contains("Christian Bale") && theCoolestBatmans.contains("Michael Keaton"))
     }
 
+    @Test
+    fun whenFilterNotWithPredicate_thenMatchingItemsAreReturned() {
+        //Returns a list containing only elements not matching the given predicate.
+        val theMehBatmans = batmans.filterNot { actor -> actor.contains("a") }
+        assertTrue(!theMehBatmans.contains("Christian Bale") && !theMehBatmans.contains("Michael Keaton"))
+    }
+
 }
\ No newline at end of file

From 0478d4600794329e08b22a67c07daca5dad9404b Mon Sep 17 00:00:00 2001
From: David Calap <david.calap@nexthink.com>
Date: Wed, 2 Oct 2019 09:22:55 +0200
Subject: [PATCH 3/3] BAEL-3323 new check added to example

---
 .../src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt       | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
index 1e7136d08b..6fa7983689 100644
--- a/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
+++ b/core-kotlin-2/src/test/kotlin/com/baeldung/lists/ListsUnitTest.kt
@@ -2,6 +2,7 @@ package com.baeldung.lists
 
 import org.junit.jupiter.api.Test
 import kotlin.test.assertEquals
+import kotlin.test.assertFalse
 import kotlin.test.assertTrue
 
 class ListsUnitTest {
@@ -26,7 +27,8 @@ class ListsUnitTest {
     fun whenFilterNotWithPredicate_thenMatchingItemsAreReturned() {
         //Returns a list containing only elements not matching the given predicate.
         val theMehBatmans = batmans.filterNot { actor -> actor.contains("a") }
-        assertTrue(!theMehBatmans.contains("Christian Bale") && !theMehBatmans.contains("Michael Keaton"))
+        assertFalse(theMehBatmans.contains("Christian Bale") && theMehBatmans.contains("Michael Keaton"))
+        assertTrue(theMehBatmans.contains("Ben Affleck") && theMehBatmans.contains("George Clooney"))
     }
 
 }
\ No newline at end of file