BAEL-3091: The Prototype Pattern in Java (changed code based on valid comments from a reader)

json/src/test/java/com/baeldung/jsonjava/CDLIntegrationTest.java

@@ -0,0 +1,52 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import org.json.CDL;
+import org.json.JSONArray;
+import org.json.JSONTokener;
+import org.junit.Test;
+
+public class CDLIntegrationTest {
+    @Test
+    public void givenCommaDelimitedText_thenConvertToJSONArray() {
+        JSONArray ja = CDL.rowToJSONArray(new JSONTokener("England, USA, Canada"));
+        assertEquals("[\"England\",\"USA\",\"Canada\"]", ja.toString());
+    }
+
+    @Test
+    public void givenJSONArray_thenConvertToCommaDelimitedText() {
+        JSONArray ja = new JSONArray("[\"England\",\"USA\",\"Canada\"]");
+        String cdt = CDL.rowToString(ja);
+        assertEquals("England,USA,Canada", cdt.toString().trim());
+    }
+
+    @Test
+    public void givenCommaDelimitedText_thenGetJSONArrayOfJSONObjects() {
+        String string = 
+          "name, city, age \n" +
+          "john, chicago, 22 \n" +
+          "gary, florida, 35 \n" +
+          "sal, vegas, 18";
+         
+        JSONArray result = CDL.toJSONArray(string);
+        assertEquals("[{\"name\":\"john\",\"city\":\"chicago\",\"age\":\"22\"},{\"name\":\"gary\",\"city\":\"florida\",\"age\":\"35\"},{\"name\":\"sal\",\"city\":\"vegas\",\"age\":\"18\"}]", result.toString());
+    }
+
+    @Test
+    public void givenCommaDelimitedText_thenGetJSONArrayOfJSONObjects2() {
+        JSONArray ja = new JSONArray();
+        ja.put("name");
+        ja.put("city");
+        ja.put("age");
+         
+        String string = 
+          "john, chicago, 22 \n" +
+          "gary, florida, 35 \n" +
+          "sal, vegas, 18";
+         
+        JSONArray result = CDL.toJSONArray(ja, string);
+        assertEquals("[{\"name\":\"john\",\"city\":\"chicago\",\"age\":\"22\"},{\"name\":\"gary\",\"city\":\"florida\",\"age\":\"35\"},{\"name\":\"sal\",\"city\":\"vegas\",\"age\":\"18\"}]", result.toString());
+    }
+    
+}

json/src/test/java/com/baeldung/jsonjava/CookieIntegrationTest.java

@@ -0,0 +1,29 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import org.json.Cookie;
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class CookieIntegrationTest {
+    @Test
+    public void givenCookieString_thenConvertToJSONObject() {
+        String cookie = "username=John Doe; expires=Thu, 18 Dec 2013 12:00:00 UTC; path=/";
+        JSONObject cookieJO = Cookie.toJSONObject(cookie);
+
+        assertEquals("{\"path\":\"/\",\"expires\":\"Thu, 18 Dec 2013 12:00:00 UTC\",\"name\":\"username\",\"value\":\"John Doe\"}", cookieJO.toString());
+    }
+    
+    @Test
+    public void givenJSONObject_thenConvertToCookieString() {
+        JSONObject cookieJO = new JSONObject();
+        cookieJO.put("name", "username");
+        cookieJO.put("value", "John Doe");
+        cookieJO.put("expires", "Thu, 18 Dec 2013 12:00:00 UTC");
+        cookieJO.put("path", "/");
+        String cookie = Cookie.toString(cookieJO);
+
+        assertEquals("username=John Doe;expires=Thu, 18 Dec 2013 12:00:00 UTC;path=/", cookie.toString());
+    }
+}

json/src/test/java/com/baeldung/jsonjava/HTTPIntegrationTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+import org.json.HTTP;
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class HTTPIntegrationTest {
+    @Test
+    public void givenJSONObject_thenConvertToHTTPHeader() {
+        JSONObject jo = new JSONObject();
+        jo.put("Method", "POST");
+        jo.put("Request-URI", "http://www.example.com/");
+        jo.put("HTTP-Version", "HTTP/1.1");
+        
+        assertEquals("POST \"http://www.example.com/\" HTTP/1.1"+HTTP.CRLF+HTTP.CRLF, HTTP.toString(jo));
+    }
+
+    @Test
+    public void givenHTTPHeader_thenConvertToJSONObject() {
+        JSONObject obj = HTTP.toJSONObject("POST \"http://www.example.com/\" HTTP/1.1");
+        
+        assertEquals("{\"Request-URI\":\"http://www.example.com/\",\"Method\":\"POST\",\"HTTP-Version\":\"HTTP/1.1\"}", obj.toString());
+    }
+}

json/src/test/java/com/baeldung/jsonjava/JSONArrayGetValueByKeyUnitTest.java

@@ -0,0 +1,35 @@
+package com.baeldung.jsonjava;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertThat;
+import static org.hamcrest.CoreMatchers.equalTo;
+
+public class JSONArrayGetValueByKeyUnitTest {
+
+    private static final JSONArrayGetValueByKey obj = new JSONArrayGetValueByKey();
+
+    @Test
+    public void givenJSONArrayAndAKey_thenReturnAllValuesForGivenKey() {
+        String jsonStr = "[" + " {" + " \"name\": \"John\"," + " \"city\": \"chicago\"," + " \"age\": \"22\" " + "}," + " { " + "\"name\": \"Gary\"," + " \"city\": \"florida\"," + " \"age\": \"35\" " + "}," + " { " + "\"name\": \"Selena\","
+            + " \"city\": \"vegas\"," + " \"age\": \"18\" " + "} " + "]";
+
+        List<String> actualValues = obj.getValuesByKeyInJSONArray(jsonStr, "name");
+
+        assertThat(actualValues, equalTo(Arrays.asList("John", "Gary", "Selena")));
+    }
+
+    @Test
+    public void givenJSONArrayAndAKey_whenUsingJava8Syntax_thenReturnAllValuesForGivenKey() {
+        String jsonStr = "[" + " {" + " \"name\": \"John\"," + " \"city\": \"chicago\"," + " \"age\": \"22\" " + "}," + " { " + "\"name\": \"Gary\"," + " \"city\": \"florida\"," + " \"age\": \"35\" " + "}," + " { " + "\"name\": \"Selena\","
+            + " \"city\": \"vegas\"," + " \"age\": \"18\" " + "} " + "]";
+
+        List<String> actualValues = obj.getValuesByKeyInJSONArrayUsingJava8(jsonStr, "name");
+
+        assertThat(actualValues, equalTo(Arrays.asList("John", "Gary", "Selena")));
+    }
+
+}

json/src/test/java/com/baeldung/jsonjava/JSONArrayIntegrationTest.java

@@ -0,0 +1,47 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class JSONArrayIntegrationTest {
+    @Test
+    public void givenJSONJava_thenCreateNewJSONArrayFromScratch() {
+        JSONArray ja = new JSONArray();
+        ja.put(Boolean.TRUE);
+        ja.put("lorem ipsum");
+         
+        // We can also put a JSONObject in JSONArray
+        JSONObject jo = new JSONObject();
+        jo.put("name", "jon doe");
+        jo.put("age", "22");
+        jo.put("city", "chicago");
+         
+        ja.put(jo);
+         
+        assertEquals("[true,\"lorem ipsum\",{\"city\":\"chicago\",\"name\":\"jon doe\",\"age\":\"22\"}]", ja.toString());
+    }
+    
+    @Test
+    public void givenJsonString_thenCreateNewJSONArray() {
+        JSONArray ja = new JSONArray("[true, \"lorem ipsum\", 215]");
+        assertEquals("[true,\"lorem ipsum\",215]", ja.toString());
+    }
+
+    @Test
+    public void givenListObject_thenConvertItToJSONArray() {
+        List<String> list = new ArrayList<>();
+        list.add("California");
+        list.add("Texas");
+        list.add("Hawaii");
+        list.add("Alaska");
+         
+        JSONArray ja = new JSONArray(list);
+        assertEquals("[\"California\",\"Texas\",\"Hawaii\",\"Alaska\"]", ja.toString());
+    }
+}

json/src/test/java/com/baeldung/jsonjava/JSONObjectIntegrationTest.java

@@ -0,0 +1,42 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class JSONObjectIntegrationTest {
+    @Test
+    public void givenJSONJava_thenCreateNewJSONObject() {
+        JSONObject jo = new JSONObject();
+        jo.put("name", "jon doe");
+        jo.put("age", "22");
+        jo.put("city", "chicago");
+             
+        assertEquals("{\"city\":\"chicago\",\"name\":\"jon doe\",\"age\":\"22\"}", jo.toString());
+        
+    }
+
+    @Test
+    public void givenMapObject_thenCreateJSONObject() {
+        Map<String, String> map = new HashMap<>();
+        map.put("name", "jon doe");
+        map.put("age", "22");
+        map.put("city", "chicago");
+        JSONObject jo = new JSONObject(map);
+         
+        assertEquals("{\"name\":\"jon doe\",\"city\":\"chicago\",\"age\":\"22\"}", jo.toString());
+    }
+
+    @Test
+    public void givenJsonString_thenCreateJSONObject() {
+        JSONObject jo = new JSONObject(
+          "{\"city\":\"chicago\",\"name\":\"jon doe\",\"age\":\"22\"}"
+        );
+        
+        assertEquals("{\"city\":\"chicago\",\"name\":\"jon doe\",\"age\":\"22\"}", jo.toString());
+    }
+}

json/src/test/java/com/baeldung/jsonjava/JSONTokenerIntegrationTest.java

@@ -0,0 +1,21 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import org.json.JSONTokener;
+import org.junit.Test;
+
+public class JSONTokenerIntegrationTest {
+    @Test
+    public void givenString_convertItToJSONTokens() {
+        String str = "Sample String";
+        JSONTokener jt = new JSONTokener(str);
+        
+        char[] expectedTokens = str.toCharArray();
+        int index = 0;
+        
+        while(jt.more()) {
+            assertEquals(expectedTokens[index++], jt.next());
+        }
+    }
+}

json/src/test/java/com/baeldung/jsonjava/ObjectToFromJSONIntegrationTest.java

@@ -0,0 +1,19 @@
+package com.baeldung.jsonjava;
+
+import static org.junit.Assert.assertEquals;
+
+import org.json.JSONObject;
+import org.junit.Test;
+
+public class ObjectToFromJSONIntegrationTest {
+    @Test
+    public void givenDemoBean_thenCreateJSONObject() {
+        DemoBean demo = new DemoBean();
+        demo.setId(1);
+        demo.setName("lorem ipsum");
+        demo.setActive(true);
+         
+        JSONObject jo = new JSONObject(demo);
+        assertEquals("{\"name\":\"lorem ipsum\",\"active\":true,\"id\":1}", jo.toString());
+    }
+}