insersts

.idea/workspace.xml

@@ -22,14 +22,14 @@
       </usages-collector>
       <usages-collector id="statistics.file.types.edit">
         <counts>
-          <entry key="JAVA" value="11571" />
+          <entry key="JAVA" value="14150" />
           <entry key="XML" value="3" />
         </counts>
       </usages-collector>
       <usages-collector id="statistics.file.types.open">
         <counts>
           <entry key="CLASS" value="1" />
-          <entry key="JAVA" value="5" />
+          <entry key="JAVA" value="6" />
           <entry key="XML" value="3" />
         </counts>
       </usages-collector>
@@ -40,8 +40,8 @@
       <file pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="556">
-              <caret line="170" column="21" selection-start-line="170" selection-start-column="21" selection-end-line="170" selection-end-column="21" />
+            <state relative-caret-position="300">
+              <caret line="198" column="41" selection-start-line="198" selection-start-column="41" selection-end-line="198" selection-end-column="41" />
               <folding>
                 <element signature="e#3440#3441#0" expanded="true" />
                 <element signature="e#3482#3483#0" expanded="true" />
@@ -49,6 +49,14 @@
                 <element signature="e#3603#3604#0" expanded="true" />
                 <element signature="e#3677#3678#0" expanded="true" />
                 <element signature="e#3714#3715#0" expanded="true" />
+                <element signature="e#4954#4955#0" expanded="true" />
+                <element signature="e#4995#4996#0" expanded="true" />
+                <element signature="e#5042#5043#0" expanded="true" />
+                <element signature="e#5115#5116#0" expanded="true" />
+                <element signature="e#5173#5174#0" expanded="true" />
+                <element signature="e#5234#5235#0" expanded="true" />
+                <element signature="e#5305#5306#0" expanded="true" />
+                <element signature="e#5342#5343#0" expanded="true" />
               </folding>
             </state>
           </provider>
@@ -57,8 +65,8 @@
       <file pinned="false" current-in-tab="true">
         <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="533">
-              <caret line="363" column="63" selection-start-line="363" selection-start-column="63" selection-end-line="363" selection-end-column="63" />
+            <state relative-caret-position="300">
+              <caret line="462" column="5" lean-forward="true" selection-start-line="462" selection-start-column="5" selection-end-line="462" selection-end-column="5" />
               <folding>
                 <element signature="imports" expanded="true" />
               </folding>
@@ -105,7 +113,10 @@
   </component>
   <component name="FindInProjectRecents">
     <findStrings>
+      <find>list</find>
+      <find>rev</find>
       <find>sort</find>
+      <find>rever</find>
     </findStrings>
   </component>
   <component name="Git.Settings">
@@ -219,7 +230,7 @@
     <property name="GO_FMT" value="false" />
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1544206709239" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1544219473137" />
     <property name="com.intellij.testIntegration.createTest.CreateTestDialog.defaultLibrary" value="JUnit4" />
     <property name="jdk.selected.JAVA_MODULE" value="1.8" />
     <property name="last_opened_file_path" value="$PROJECT_DIR$" />
@@ -249,7 +260,7 @@
       </list>
     </option>
   </component>
-  <component name="RunManager" selected="JUnit.ArrazTest.testTheTotalOfTenIs302">
+  <component name="RunManager" selected="JUnit.ArrazTest.testInsertEndCopy1">
     <configuration default="true" type="Applet" factoryName="Applet">
       <option name="POLICY_FILE" value="$APPLICATION_HOME_DIR$/bin/appletviewer.policy" />
       <method v="2">
@@ -262,55 +273,53 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.testArrayHas65and772" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="testArrayHas65and772" />
-      <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.testFind2ndLargestFromArray1" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.testInsertEndCopy1" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="testFind2ndLargestFromArray1" />
+      <option name="METHOD_NAME" value="testInsertEndCopy1" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.testFind2ndLargestFromArray2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.testInsertEndCopy2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="testFind2ndLargestFromArray2" />
+      <option name="METHOD_NAME" value="testInsertEndCopy2" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.testTheTotalOfTenIs301" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.testInsertStartCopy1" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="testTheTotalOfTenIs301" />
+      <option name="METHOD_NAME" value="testInsertStartCopy1" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="ArrazTest.testTheTotalOfTenIs302" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+    <configuration name="ArrazTest.testInsertStartCopy2" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
       <module name="arraz" />
       <option name="PACKAGE_NAME" value="" />
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
-      <option name="METHOD_NAME" value="testTheTotalOfTenIs302" />
+      <option name="METHOD_NAME" value="testInsertStartCopy2" />
       <option name="TEST_OBJECT" value="method" />
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
       <method v="2">
@@ -341,19 +350,19 @@
       </method>
     </configuration>
     <list>
-      <item itemvalue="JUnit.ArrazTest.testArrayHas65and772" />
-      <item itemvalue="JUnit.ArrazTest.testFind2ndLargestFromArray2" />
-      <item itemvalue="JUnit.ArrazTest.testFind2ndLargestFromArray1" />
-      <item itemvalue="JUnit.ArrazTest.testTheTotalOfTenIs301" />
-      <item itemvalue="JUnit.ArrazTest.testTheTotalOfTenIs302" />
+      <item itemvalue="JUnit.ArrazTest" />
+      <item itemvalue="JUnit.ArrazTest.testInsertStartCopy1" />
+      <item itemvalue="JUnit.ArrazTest.testInsertStartCopy2" />
+      <item itemvalue="JUnit.ArrazTest.testInsertEndCopy2" />
+      <item itemvalue="JUnit.ArrazTest.testInsertEndCopy1" />
     </list>
     <recent_temporary>
       <list>
-        <item itemvalue="JUnit.ArrazTest.testTheTotalOfTenIs302" />
-        <item itemvalue="JUnit.ArrazTest.testTheTotalOfTenIs301" />
-        <item itemvalue="JUnit.ArrazTest.testFind2ndLargestFromArray1" />
-        <item itemvalue="JUnit.ArrazTest.testFind2ndLargestFromArray2" />
-        <item itemvalue="JUnit.ArrazTest.testArrayHas65and772" />
+        <item itemvalue="JUnit.ArrazTest.testInsertEndCopy1" />
+        <item itemvalue="JUnit.ArrazTest.testInsertEndCopy2" />
+        <item itemvalue="JUnit.ArrazTest.testInsertStartCopy2" />
+        <item itemvalue="JUnit.ArrazTest.testInsertStartCopy1" />
+        <item itemvalue="JUnit.ArrazTest" />
       </list>
     </recent_temporary>
   </component>
@@ -370,7 +379,7 @@
       <workItem from="1543955862749" duration="2347000" />
       <workItem from="1543958998826" duration="113000" />
       <workItem from="1544020724645" duration="762000" />
-      <workItem from="1544046933389" duration="36119000" />
+      <workItem from="1544046933389" duration="44493000" />
     </task>
     <task id="LOCAL-00001" summary="readme and docs">
       <created>1544021313039</created>
@@ -383,45 +392,45 @@
     <servers />
   </component>
   <component name="TestHistory">
-    <history-entry file="ArrazTest_testAverageArrayWithoutMaxMin2 - 2018.12.07 at 12h 43m 07s.xml">
-      <configuration name="ArrazTest.testAverageArrayWithoutMaxMin2" configurationId="JUnit" />
-    </history-entry>
-    <history-entry file="ArrazTest_testAverageArrayWithoutMaxMin - 2018.12.07 at 12h 43m 51s.xml">
-      <configuration name="ArrazTest.testAverageArrayWithoutMaxMin" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertArrayAt2 - 2018.12.07 at 16h 02m 54s.xml">
+      <configuration name="ArrazTest.testInsertArrayAt2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testAverageArrayWithoutMaxMin - 2018.12.07 at 12h 44m 05s.xml">
-      <configuration name="ArrazTest.testAverageArrayWithoutMaxMin" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertArrayAt2 - 2018.12.07 at 16h 03m 30s.xml">
+      <configuration name="ArrazTest.testInsertArrayAt2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_test1SumValuesOfArray1 - 2018.12.07 at 12h 46m 13s.xml">
-      <configuration name="ArrazTest.test1SumValuesOfArray1" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertArrayAt1 - 2018.12.07 at 16h 03m 55s.xml">
+      <configuration name="ArrazTest.testInsertArrayAt1" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest - 2018.12.07 at 12h 46m 18s.xml">
+    <history-entry file="ArrazTest - 2018.12.07 at 16h 05m 27s.xml">
       <configuration name="ArrazTest" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testArrayHas65and771 - 2018.12.07 at 12h 51m 30s.xml">
-      <configuration name="ArrazTest.testArrayHas65and771" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertStartCopy1 - 2018.12.07 at 16h 31m 44s.xml">
+      <configuration name="ArrazTest.testInsertStartCopy1" configurationId="JUnit" />
+    </history-entry>
+    <history-entry file="ArrazTest_testInsertStartCopy2 - 2018.12.07 at 16h 31m 46s.xml">
+      <configuration name="ArrazTest.testInsertStartCopy2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testArrayHas65and772 - 2018.12.07 at 12h 51m 33s.xml">
-      <configuration name="ArrazTest.testArrayHas65and772" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertEndCopy2 - 2018.12.07 at 16h 45m 50s.xml">
+      <configuration name="ArrazTest.testInsertEndCopy2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testArrayHas65and772 - 2018.12.07 at 12h 52m 03s.xml">
-      <configuration name="ArrazTest.testArrayHas65and772" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertEndCopy2 - 2018.12.07 at 16h 46m 24s.xml">
+      <configuration name="ArrazTest.testInsertEndCopy2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testFind2ndLargestFromArray2 - 2018.12.07 at 13h 01m 28s.xml">
-      <configuration name="ArrazTest.testFind2ndLargestFromArray2" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertEndCopy2 - 2018.12.07 at 16h 46m 57s.xml">
+      <configuration name="ArrazTest.testInsertEndCopy2" configurationId="JUnit" />
     </history-entry>
-    <history-entry file="ArrazTest_testFind2ndLargestFromArray1 - 2018.12.07 at 13h 01m 31s.xml">
-      <configuration name="ArrazTest.testFind2ndLargestFromArray1" configurationId="JUnit" />
+    <history-entry file="ArrazTest_testInsertEndCopy2 - 2018.12.07 at 16h 47m 14s.xml">
+      <configuration name="ArrazTest.testInsertEndCopy2" configurationId="JUnit" />
     </history-entry>
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="39341000" />
+    <option name="totallyTimeSpent" value="47715000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="1" y="23" width="1440" height="807" extended-state="0" />
     <editor active="true" />
     <layout>
-      <window_info active="true" content_ui="combo" id="Project" order="0" visible="true" weight="0.26108727" />
+      <window_info content_ui="combo" id="Project" order="0" visible="true" weight="0.26108727" />
       <window_info id="Structure" order="1" weight="0.25" />
       <window_info id="Image Layers" order="2" />
       <window_info id="Designer" order="3" />
@@ -432,7 +441,7 @@
       <window_info anchor="bottom" id="Messages" weight="0.32867134" />
       <window_info anchor="bottom" id="Message" order="0" />
       <window_info anchor="bottom" id="Find" order="1" />
-      <window_info anchor="bottom" id="Run" order="2" weight="0.32867134" />
+      <window_info active="true" anchor="bottom" id="Run" order="2" visible="true" weight="0.32867134" />
       <window_info anchor="bottom" id="Debug" order="3" weight="0.4" />
       <window_info anchor="bottom" id="Cvs" order="4" weight="0.25" />
       <window_info anchor="bottom" id="Inspection" order="5" weight="0.4" />
@@ -491,6 +500,20 @@
     <MESSAGE value="readme and docs" />
     <option name="LAST_COMMIT_MESSAGE" value="readme and docs" />
   </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <line-breakpoint enabled="true" type="java-method">
+          <url>file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java</url>
+          <line>206</line>
+          <properties class="ArrazTest" method="testInsertArrayAt2">
+            <option name="EMULATED" value="true" />
+          </properties>
+          <option name="timeStamp" value="26" />
+        </line-breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
   <component name="editorHistoryManager">
     <entry file="file://$PROJECT_DIR$/arraz/pom.xml">
       <provider selected="true" editor-type-id="text-editor">
@@ -530,6 +553,13 @@
         </state>
       </provider>
     </entry>
+    <entry file="jar:///Library/Java/JavaVirtualMachines/jdk1.8.0_181.jdk/Contents/Home/src.zip!/java/util/ArrayList.java">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="-10766">
+          <caret line="106" column="13" selection-start-line="106" selection-start-column="13" selection-end-line="106" selection-end-column="13" />
+        </state>
+      </provider>
+    </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/main/java/OddEven.java">
       <provider selected="true" editor-type-id="text-editor">
         <state>
@@ -555,8 +585,8 @@
     </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/main/java/Arraz.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="556">
-          <caret line="170" column="21" selection-start-line="170" selection-start-column="21" selection-end-line="170" selection-end-column="21" />
+        <state relative-caret-position="300">
+          <caret line="198" column="41" selection-start-line="198" selection-start-column="41" selection-end-line="198" selection-end-column="41" />
           <folding>
             <element signature="e#3440#3441#0" expanded="true" />
             <element signature="e#3482#3483#0" expanded="true" />
@@ -564,14 +594,22 @@
             <element signature="e#3603#3604#0" expanded="true" />
             <element signature="e#3677#3678#0" expanded="true" />
             <element signature="e#3714#3715#0" expanded="true" />
+            <element signature="e#4954#4955#0" expanded="true" />
+            <element signature="e#4995#4996#0" expanded="true" />
+            <element signature="e#5042#5043#0" expanded="true" />
+            <element signature="e#5115#5116#0" expanded="true" />
+            <element signature="e#5173#5174#0" expanded="true" />
+            <element signature="e#5234#5235#0" expanded="true" />
+            <element signature="e#5305#5306#0" expanded="true" />
+            <element signature="e#5342#5343#0" expanded="true" />
           </folding>
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="533">
-          <caret line="363" column="63" selection-start-line="363" selection-start-column="63" selection-end-line="363" selection-end-column="63" />
+        <state relative-caret-position="300">
+          <caret line="462" column="5" lean-forward="true" selection-start-line="462" selection-start-column="5" selection-end-line="462" selection-end-column="5" />
           <folding>
             <element signature="imports" expanded="true" />
           </folding>

arraz/src/main/java/Arraz.java

@@ -104,11 +104,12 @@ public class Arraz {
     public int[] insertArrayAt(int[] array, int index, int value){
         int[] newArray = new int[array.length + 1];
         int counter = 0;
-        for (int i = 0; i < array.length-1; i++) {
-            if (i == index){
-                newArray[index] = value;
+        for (int i = 0; i < array.length; i++) {
+            if (counter == index){
+                newArray[counter] = value;
                 counter++;
-            }else {
+                i--;
+            }else{
                 newArray[counter] = array[i];
                 counter++;
             }
@@ -170,4 +171,31 @@ public class Arraz {
         }
         return false;
     }
+
+    public Integer[] min2Array(Integer[] array){
+        Set<Integer> minSet = new TreeSet<>(Arrays.asList(array));
+        return Arrays.copyOfRange(minSet.toArray(new Integer[0]), 0, 2);
+    }
+
+    public int[] reverseCopy(int[] array){
+       return reverseArray(array);
+    }
+
+    public int[] removeLastItemCopy(int[] array){
+        return removeElementFromArray(array, array[array.length-1]);
+    }
+
+    public int[] removeFirstItemCopy(int[] array){
+        return removeElementFromArray(array, array[0]);
+    }
+
+    public int[] insertStartCopy(int[] array, int value){
+        return insertArrayAt(array, 0, value);
+    }
+
+    public Integer[] insertEndCopy(Integer[] array, int value){
+        List<Integer> list = new ArrayList<>(Arrays.asList(array));
+        list.add(value);
+        return list.toArray(new Integer[0]);
+    }
 }

arraz/src/test/java/ArrazTest.java

@@ -3,7 +3,6 @@
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
-
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -197,16 +196,18 @@ public class ArrazTest {
 
     @Test
     public void testInsertArrayAt1(){
-        int[] expected = new int[]{5, 10, 17, 3, 29, 100};
-        int[] actual = testArraz.insertArrayAt(arr1, 2, 17);
+        int[] expected = new int[]{5, 10, 3, 17, 29, 100};
+        int[] actual = testArraz.insertArrayAt(arr1, 3, 17);
+        System.out.println(Arrays.toString(actual));
 
         Assert.assertArrayEquals(expected, actual);
     }
 
     @Test
     public void testInsertArrayAt2(){
-        int[] expected =  new int[]{2, 7, 432, 89, 6};
-        int[] actual = testArraz.insertArrayAt(arr2, 4, 6);
+        int[] expected =  new int[]{2, 6, 7, 432, 89};
+        int[] actual = testArraz.insertArrayAt(arr2, 1, 6);
+        System.out.println(Arrays.toString(actual));
 
         Assert.assertArrayEquals(expected, actual);
     }
@@ -364,4 +365,100 @@ public class ArrazTest {
         Assert.assertFalse(testArraz.theTotalOfTenIs30(array));
     }
 
+    @Test
+    public void testMin2Array1(){
+        Integer[] expected = new Integer[]{3, 5};
+        Integer[] actual = testArraz.min2Array(new Integer[]{100, 54, 10, 78, 10, 5, 3});
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testMin2Array(){
+        Integer[] expected = new Integer[]{1, 10};
+        Integer[] actual = testArraz.min2Array(new Integer[]{1,1,1,1,10});
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testReverseCopy1(){
+        int[] expected = new int[]{100, 29, 3, 10, 5};
+        int[] actual = testArraz.reverseCopy(arr1);
+
+        Assert.assertArrayEquals(expected,actual);
+    }
+
+    @Test
+    public void testReverseCopy2(){
+        int[] expected = new int[]{89, 432, 7, 2};
+        int[] actual = testArraz.reverseCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveLastItemCopy1(){
+        int[] expected = new int[]{5, 10, 3, 29};
+        int[] actual = testArraz.removeLastItemCopy(arr1);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveLastItemCopy2(){
+        int[] expected =  new int[]{2, 7, 432};
+        int[] actual = testArraz.removeLastItemCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveFirstItemCopy1(){
+        int[] expected = new int[]{7, 432, 89};
+        int[] actual = testArraz.removeFirstItemCopy(arr2);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testRemoveFirstItemCopy2(){
+        int[] expected = new int[]{10, 3, 29, 100};
+        int[] actual = testArraz.removeFirstItemCopy(arr1);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertStartCopy1(){
+        int[] expected = new int[]{4, 5, 10, 3, 29, 100};
+        int[] actual = testArraz.insertStartCopy(arr1, 4);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertStartCopy2(){
+        int[] expected = new int[]{56, 2, 7, 432, 89};
+        int[] actual = testArraz.insertStartCopy(arr2, 56);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertEndCopy1(){
+        Integer[] expected = new Integer[]{2, 7, 432, 89, 9};
+        Integer[] actual = testArraz.insertEndCopy(new Integer[]{2, 7, 432, 89}, 9);
+
+        Assert.assertArrayEquals(expected, actual);
+    }
+
+    @Test
+    public void testInsertEndCopy2(){
+        Integer[] expected = new Integer[]{5, 10, 3, 29, 100, 90};
+        Integer[] actual = testArraz.insertEndCopy(new Integer[]{5, 10, 3, 29, 100}, 90);
+        System.out.println(Arrays.toString(actual));
+
+        Assert.assertArrayEquals(expected, actual);
+    }
 }