FlickrView AKA KittenForce (aka puppyforce)

FlickrHandler.cls

public with sharing class FlickrHandler {

	public class FlickrList {
		public string title {get; set;}
		public string link {get; set;}
		public List<FlickrData> items {get; set;}
	}
	
	public class FlickrData {
		public string title {get; set;}
		public string link {get; set;}
		public FlickrImage media {get; set;}
		public string author {get; set;} 
		public string description {get; set;} 
		
	}
	
	public class FlickrImage {
		public string m {get; set;}
	}
	
	public FlickrList data {get; set;}

	public FlickrHandler() {
		if(ApexPages.currentPage().getParameters().containsKey('tag')) { data = getFlickrData(ApexPages.currentPage().getParameters().get('tag')); }
		else {data = getFlickrData('cute kitten');}
	}
	
	public FlickrHandler(ApexPages.StandardController stc) {
		if(ApexPages.currentPage().getParameters().containsKey('tag')) { data = getFlickrData(ApexPages.currentPage().getParameters().get('tag')); }
		else {data = getFlickrData('cute kitten');}
	}
	
	
	public FlickrList getFlickrData(string tag) {
		HttpRequest req = new HttpRequest();

		req.setMethod('GET');
		req.setEndpoint('http://api.flickr.com/services/feeds/photos_public.gne?nojsoncallback=1&format=json&tags='+tag);
		
		HTTP http = new HTTP();
		HTTPResponse res = http.send(req);
		
		return (FlickrList)JSON.deserialize(res.getBody().replace('\\\'',''),FlickrList.class);		
	}
    
    
    
}

FlickrTest.cls

@isTest
public class FlickrTest{
    @isTest static void testCallout(){
        Test.setMock(HttpCalloutMock.class, new MockHttpResponseGenerator());
        
        FlickrHandler fh = new FlickrHandler();
        FlickrHandler.FlickrList fl = new FlickrHandler.FlickrList();
        FlickrHandler.FlickrData fd = new FLickrHandler.FlickrData(); 
    }
}


@isTest
public class TestClase{
    @isTest static void testCase(){
        //setup test data
    	List<Contact> contacts = ContactFactory.createTestContacts();
        
        //process / perform logic
        EvaluateContacts.processs(contacts);

        //assert outcome
        System.assertEquals(EvaluateContacts.processed.size(),contacts.size());
    }
}

FlickrView.page

<apex:page controller="FlickrHandler">
	
	<apex:repeat value="{!data.items}" var="img">
	 <div style="position: inline; float: left;">
		{!img.title}<br /><img src="{!img.media.m}" />
		<br />
	</div>
	</apex:repeat>
	
</apex:page>