From ae0851d922f0c81a921758b2b32ec00904fbbf3e Mon Sep 17 00:00:00 2001
From: Deepika J <jdeepika.111@gmail.com>
Date: Wed, 26 Jul 2017 00:20:22 -0700
Subject: [PATCH] Replace Char in a String Tests

---
 .gitignore                                  |   5 +
 pom.xml                                     |  26 ++++
 src/main/java/com/api/apple/StringEx.java   |  36 ++++++
 src/test/java/com/api/apple/StringTest.java | 129 ++++++++++++++++++++
 src/test/resources/ReplaceCharTests.xml     |  11 ++
 5 files changed, 207 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 pom.xml
 create mode 100644 src/main/java/com/api/apple/StringEx.java
 create mode 100644 src/test/java/com/api/apple/StringTest.java
 create mode 100644 src/test/resources/ReplaceCharTests.xml

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1d97ead
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.classpath
+.project
+.settings/
+target/
+test-output/
\ No newline at end of file
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..9f106e8
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,26 @@
+<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>
+
+	<groupId>com.api</groupId>
+	<artifactId>apple</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<packaging>jar</packaging>
+
+	<name>apple</name>
+	<url>http://maven.apache.org</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+	</properties>
+
+	<dependencies>
+		
+		<dependency>
+			<groupId>org.testng</groupId>
+			<artifactId>testng</artifactId>
+			<version>6.11</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+</project>
diff --git a/src/main/java/com/api/apple/StringEx.java b/src/main/java/com/api/apple/StringEx.java
new file mode 100644
index 0000000..8e4e2aa
--- /dev/null
+++ b/src/main/java/com/api/apple/StringEx.java
@@ -0,0 +1,36 @@
+package com.api.apple;
+
+/**
+ * @author DeepikaJammula
+ * Program : Given a String and a Character, remove all instances of the Character in the String
+ *
+ */
+public class StringEx {
+
+	
+	//Iterate through the String, one character at a time
+	public static String removeChar(String str,char c){
+
+		if(str==null)
+			return null;
+		StringBuilder str1= new StringBuilder();
+		char[] arr = str.toCharArray();
+		for(int i=0;i<arr.length;i++){
+			if(arr[i]!=c){
+				str1.append(arr[i]);
+			}
+		}
+		return str1.toString();
+	}
+
+	//Find a method in the String class that can solve this in one line
+	public static String removeChar2(String str,char c){
+		if(str==null)
+			return null;
+		//converting a char to String and using String predefined Method
+		String replacedString=str.replaceAll(String.valueOf(c), "");
+		return replacedString;
+
+	}
+
+}
diff --git a/src/test/java/com/api/apple/StringTest.java b/src/test/java/com/api/apple/StringTest.java
new file mode 100644
index 0000000..0c8939c
--- /dev/null
+++ b/src/test/java/com/api/apple/StringTest.java
@@ -0,0 +1,129 @@
+package com.api.apple;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+import com.api.apple.StringEx;
+
+/**
+ * @author DeepikaJammula
+ * This test is to validate "Given a String and a Character, remove all instances of the Character in the String"
+ *
+ */
+public class StringTest {
+	
+	/**
+	 * PositiveTest
+	 * Input string with multiple words
+	 */
+	@Test
+	public void stringTest_1(){
+		String inputString = "Hello World";
+		char replaceChar = 'l';
+		String expectedString = "Heo Word";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	
+	/**
+	 * PositiveTest
+	 * Replace char is "space"
+	 */
+	@Test
+	public void stringTest_2(){
+		String inputString = "Hello World";
+		char replaceChar = ' ';
+		String expectedString = "HelloWorld";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	
+	/**
+	 * PositiveTest
+	 * Input string with one words
+	 */
+	@Test
+	public void stringTest_3(){
+		String inputString = "World";
+		char replaceChar = 'o';
+		String expectedString = "Wrld";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	
+	/**
+	 * NegativeTest
+	 * Replace char doesn't exist in input String
+	 */
+	@Test
+	public void stringTest_4(){
+		String inputString = "Hello World";
+		char replaceChar = 'x';
+		String expectedString = "Hello World";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	/**
+	 * NegativeTest
+	 * Input string "space"
+	 */
+	@Test
+	public void stringTest_5(){
+		String inputString = " ";
+		char replaceChar = 'x';
+		String expectedString = " ";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	/**
+	 * PositiveTest
+	 * Removing number
+	 */
+	@Test
+	public void stringTest_6(){
+		String inputString = "Hello12 World123";
+		char replaceChar = '2';
+		String expectedString = "Hello1 World13";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	/**
+	 * PositiveTest
+	 * Removing special characters
+	 */
+	@Test
+	public void stringTest_7(){
+		String inputString = "Hello@**@World";
+		char replaceChar = '@';
+		String expectedString = "Hello**World";
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+	/**
+	 * NegativeTest
+	 * Input String is null
+	 */
+	@Test
+	public void stringTest_8(){
+		String inputString = null;
+		char replaceChar = 'u';
+		String expectedString = null;
+		
+		Assert.assertEquals(expectedString, StringEx.removeChar(inputString, replaceChar));
+		Assert.assertEquals(expectedString, StringEx.removeChar2(inputString, replaceChar));
+		
+	}
+
+}
diff --git a/src/test/resources/ReplaceCharTests.xml b/src/test/resources/ReplaceCharTests.xml
new file mode 100644
index 0000000..9be9491
--- /dev/null
+++ b/src/test/resources/ReplaceCharTests.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
+
+<suite name="apple" parallel="true">
+
+	<test name="charReplace">
+		<classes>
+			<class name="com.api.apple.StringTest" />
+		</classes>
+	</test>
+</suite>
\ No newline at end of file