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+<?php
+
+/**
+ * @file
+ * Helper module for the image tests.
+ */
+
+/**
+ * Implements hook_image_toolkits().
+ */
+function image_test_image_toolkits() {
+ return array(
+ 'test' => array(
+ 'title' => t('A dummy toolkit that works'),
+ 'available' => TRUE,
+ ),
+ 'broken' => array(
+ 'title' => t('A dummy toolkit that is "broken"'),
+ 'available' => FALSE,
+ ),
+ );
+}
+
+/**
+ * Reset/initialize the history of calls to the toolkit functions.
+ *
+ * @see image_test_get_all_calls()
+ */
+function image_test_reset() {
+ // Keep track of calls to these operations
+ $results = array(
+ 'load' => array(),
+ 'save' => array(),
+ 'settings' => array(),
+ 'resize' => array(),
+ 'rotate' => array(),
+ 'crop' => array(),
+ 'desaturate' => array(),
+ );
+ variable_set('image_test_results', $results);
+}
+
+/**
+ * Get an array with the all the calls to the toolkits since image_test_reset()
+ * was called.
+ *
+ * @return
+ * An array keyed by operation name ('load', 'save', 'settings', 'resize',
+ * 'rotate', 'crop', 'desaturate') with values being arrays of parameters
+ * passed to each call.
+ */
+function image_test_get_all_calls() {
+ return variable_get('image_test_results', array());
+}
+
+/**
+ * Store the values passed to a toolkit call.
+ *
+ * @param $op
+ * One of the image toolkit operations: 'get_info', 'load', 'save',
+ * 'settings', 'resize', 'rotate', 'crop', 'desaturate'.
+ * @param $args
+ * Values passed to hook.
+ *
+ * @see image_test_get_all_calls()
+ * @see image_test_reset()
+ */
+function _image_test_log_call($op, $args) {
+ $results = variable_get('image_test_results', array());
+ $results[$op][] = $args;
+ variable_set('image_test_results', $results);
+}
+
+/**
+ * Image tookit's settings operation.
+ */
+function image_test_settings() {
+ _image_test_log_call('settings', array());
+ return array();
+}
+
+/**
+ * Image toolkit's get_info operation.
+ */
+function image_test_get_info(stdClass $image) {
+ _image_test_log_call('get_info', array($image));
+ return array();
+}
+
+/**
+ * Image tookit's load operation.
+ */
+function image_test_load(stdClass $image) {
+ _image_test_log_call('load', array($image));
+ return $image;
+}
+
+/**
+ * Image tookit's save operation.
+ */
+function image_test_save(stdClass $image, $destination) {
+ _image_test_log_call('save', array($image, $destination));
+ // Return false so that image_save() doesn't try to chmod the destination
+ // file that we didn't bother to create.
+ return FALSE;
+}
+
+/**
+ * Image tookit's crop operation.
+ */
+function image_test_crop(stdClass $image, $x, $y, $width, $height) {
+ _image_test_log_call('crop', array($image, $x, $y, $width, $height));
+ return TRUE;
+}
+
+/**
+ * Image tookit's resize operation.
+ */
+function image_test_resize(stdClass $image, $width, $height) {
+ _image_test_log_call('resize', array($image, $width, $height));
+ return TRUE;
+}
+
+/**
+ * Image tookit's rotate operation.
+ */
+function image_test_rotate(stdClass $image, $degrees, $background = NULL) {
+ _image_test_log_call('rotate', array($image, $degrees, $background));
+ return TRUE;
+}
+
+/**
+ * Image tookit's desaturate operation.
+ */
+function image_test_desaturate(stdClass $image) {
+ _image_test_log_call('desaturate', array($image));
+ return TRUE;
+}