working on rendering

classes/DailyImageWidget.php

@@ -1,8 +1,66 @@
 <?php
 
 class DailyImageWidget {
+  function DailyImageWidget() {
+    $this->default_display_options = array(
+      'title',
+      'image',
+      'styles'
+    ); 
+  }
+  
+  function get_display_options() {
+    $display_options = get_option('hubblesite-daily-image-options');
+    $this->display_options = array();
+    if (!empty($display_options)) {
+      $this->display_options = array_intersect(
+        explode(",", $display_options),
+        array("title", "image", "styles", "caption", "credits")
+      );
+    }
+    
+    if (empty($this->display_options)) {
+      $this->display_options = $this->default_display_options;
+    }
+
+    return $this->display_options;
+  }
+  
   function render() {
-    if (!empty($this->data)) {
+    if (!empty($this->data) && is_array($this->data)) {
+      $options = $this->get_display_options();
+      
+      echo '<div id="hubblesite-daily-image">';
+        if (in_array("image", $options)) {
+          echo '<a href="' . $this->data['gallery_url'] . '" title="' . $this->data['title'] . '">';
+            echo '<img src="' . $this->data['image_url'] . '" alt="' . $this->data['title'] . '" />';
+          echo '</a>';
+        }
+        
+        if (in_array("title", $options)) {
+          echo '<a id="hubblesite-daily-image-title" href="' . $this->data['gallery_url'] . '">';
+            echo $this->data['title'];
+          echo '</a>';
+        }
+
+        if (in_array("caption", $options)) {
+          echo '<div id="hubblesite-daily-image-caption">';
+            echo $this->data['caption'];
+          echo '</div>';
+        }
+
+        if (in_array("credits", $options)) {
+          echo '<div id="hubblesite-daily-image-credits">';
+            echo $this->data['credits'];
+          echo '</div>';
+        }
+      echo '</div>';
+      
+      if (in_array("styles", $options)) {
+        echo '<style type="text/css">';
+          echo "div#hubblesite-daily-image { text-align: center }";
+        echo '</style>';
+      }
     }
   }
 }

test/DailyImageWidgetTest.php

@@ -2,21 +2,122 @@
 
 require_once('PHPUnit/Framework.php');
 require_once(dirname(__FILE__) . '/../classes/DailyImageWidget.php');
+require_once(dirname(__FILE__) . '/../../wordpress-phpunit-mocks/wordpress-phpunit-mocks.php');
 
 class DailyImageWidgetTest extends PHPUnit_Framework_TestCase {
   function setUp() {
     $this->diw = new DailyImageWidget();
+    
+    $this->diw->data = array(
+      'title' => 'title',
+      'caption' => 'caption',
+      'date' => '12345',
+      'image_url' => 'image_url',
+      'gallery_url' => 'gallery_url',
+      'credits' => 'credits'
+    );
+    
+    _reset_wp();
   }
 
-  function testRetrieveDataFailure() {
+  function providerTestRetrieveJunkData() {
-    $this->diw->data = false;
+    return array(
-    
+      array(0),
+      array(null),
+      array(false),
+      array(true),
+      array(array()),
+      array((object)array())
+    ); 
+  }
+  
+  /** 
+   * @dataProvider providerTestRetrieveJunkData
+   */
+  function testRetrieveJunkData($bad_data) {
+    $this->diw->data = $bad_data;
+
     ob_start();
     $this->diw->render();
     $result = ob_get_clean();
     
     $this->assertTrue(empty($result));
   }
+  
+  
+  function providerTestTemplateOptions() {
+    return array(
+      array(
+        "image",
+        array(
+          '//div[@id="hubblesite-daily-image"]' => true,
+          '//div/a[@href="gallery_url" and @title="title"]' => true,
+          '//div/a/img[@src="image_url" and @alt="title"]' => true,
+        )
+      ),
+      array(
+        "title",
+        array(
+          '//div/a[@href="gallery_url" and @id="hubblesite-daily-image-title"]' => "title"        
+        )
+      ),
+      array(
+        "styles",
+        array(
+          '//style[@type="text/css"]' => true
+        )
+      ),
+      array(
+        "caption",
+        array(
+          '//div/div[@id="hubblesite-daily-image-caption"]' => 'caption'
+        )
+      ),
+      array(
+        "credits",
+        array(
+          '//div/div[@id="hubblesite-daily-image-credits"]' => 'credits'
+        )
+      )
+    ); 
+  }
+  
+  /**
+   * @dataProvider providerTestTemplateOptions
+   */
+  function testTemplateOptions($option_string, $xpath_tests) {
+    update_option('hubblesite-daily-image-options', $option_string);
+    
+    ob_start();
+    $this->diw->render();
+    $result = ob_get_clean();
+    
+    $this->assertTrue(!empty($result));
+    
+    $this->assertTrue(($xml = _to_xml($result)) !== false);
+    foreach ($xpath_tests as $xpath => $result) {
+      $this->assertTrue(_xpath_test($xml, $xpath, $result), $xpath);
+    }
+  }
+  
+  function providerTestGetDisplayOptions() {
+    return array(
+      array("", array("title", "image", "styles")),
+      array("meow", array("title", "image", "styles")),
+      array("title", array("title")),
+      array("title,image", array("title", "image")),
+      array("title,meow", array("title"))
+    ); 
+  }
+  
+  /**
+   * @dataProvider providerTestGetDisplayOptions
+   */  
+  function testGetDisplayOptions($options, $result) {
+    update_option('hubblesite-daily-image-options', $options);
+    
+    $this->assertEquals($result, $this->diw->get_display_options());
+  }
 }
 
 ?>