Merge pull request eugenp#10434 from MeenaGawande/master

[BAEL-4715] Java HashMap Load Factor

core-java-modules/core-java-collections-maps-3/src/test/java/com/baeldung/map/hashmap/loadfactor/HashMapLoadFactorUnitTest.java

@@ -0,0 +1,49 @@
+package com.baeldung.map.hashmap.loadfactor;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Assert;
+import org.junit.jupiter.api.Test;
+
+public class HashMapLoadFactorUnitTest {
+
+ @Test
+ public void whenCreateMapWithDefaultParam_thenSucces() {
+ Map<String, String> mapWithDefaultParams = new HashMap<>();
+ mapWithDefaultParams.put("1", "one");
+ mapWithDefaultParams.put("2", "two");
+ mapWithDefaultParams.put("3", "three");
+ mapWithDefaultParams.put("4", "four");
+ mapWithDefaultParams.put("5", "five");
+
+ Assert.assertEquals(5, mapWithDefaultParams.size());
+ }
+
+ @Test
+ public void whenCreateMapWithInitialCapacity_thenSucces() {
+ Map<String, String> mapWithInitialCapacity = new HashMap<>(5);
+ mapWithInitialCapacity.put("1", "one");
+ mapWithInitialCapacity.put("2", "two");
+ mapWithInitialCapacity.put("3", "three");
+
+ Assert.assertEquals(3, mapWithInitialCapacity.size());
+ }
+
+ @Test
+ public void whenCreateMapWithInitialCapacityAndLF_thenSucces() {
+ Map<String, String> mapWithInitialCapacityAndLF = new HashMap<>(5, 0.5f);
+ mapWithInitialCapacityAndLF.put("1", "one");
+ mapWithInitialCapacityAndLF.put("2", "two");
+ mapWithInitialCapacityAndLF.put("3", "three");
+ mapWithInitialCapacityAndLF.put("4", "four");
+ mapWithInitialCapacityAndLF.put("5", "five");
+ mapWithInitialCapacityAndLF.put("6", "six");
+ mapWithInitialCapacityAndLF.put("7", "seven");
+ mapWithInitialCapacityAndLF.put("8", "eight");
+ mapWithInitialCapacityAndLF.put("9", "nine");
+ mapWithInitialCapacityAndLF.put("10", "ten");
+
+ Assert.assertEquals(10, mapWithInitialCapacityAndLF.size());
+ }
+}