From 30ab46f265480ec0a5d56e9276794f3baefeaaef Mon Sep 17 00:00:00 2001
From: Tim Schaub <tim.schaub@gmail.com>
Date: Tue, 9 Sep 2008 00:10:59 +0000
Subject: [PATCH] Adding a geom_eq method for Test.AnotherWay.  This can be
 used to test two geometries for equivalence.  (see #1639)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@7983 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
---
 tests/geom_eq.js     | 110 +++++++++++++++++++++++++++++++++++++++++++
 tests/run-tests.html |   1 +
 2 files changed, 111 insertions(+)
 create mode 100644 tests/geom_eq.js

diff --git a/tests/geom_eq.js b/tests/geom_eq.js
new file mode 100644
index 0000000000..26f3a95034
--- /dev/null
+++ b/tests/geom_eq.js
@@ -0,0 +1,110 @@
+/**
+ * File: xml_eq.js
+ * Adds a xml_eq method to AnotherWay test objects.
+ *
+ */
+
+(function() {
+    
+    /**
+     * Function assertEqual
+     * Test two objects for equivalence (based on ==).  Throw an exception
+     *     if not equivalent.
+     * 
+     * Parameters:
+     * got - {Object}
+     * expected - {Object}
+     * msg - {String} The message to be thrown.  This message will be appended
+     *     with ": got {got} but expected {expected}" where got and expected are
+     *     replaced with string representations of the above arguments.
+     */
+    function assertEqual(got, expected, msg) {
+        if(got === undefined) {
+            got = "undefined";
+        } else if (got === null) {
+            got = "null";
+        }
+        if(expected === undefined) {
+            expected = "undefined";
+        } else if (expected === null) {
+            expected = "null";
+        }
+        if(got != expected) {
+            throw msg + ": got '" + got + "' but expected '" + expected + "'";
+        }
+    }
+    
+    /**
+     * Function assertGeometryEqual
+     * Test two geometries for equivalence.  Geometries are considered
+     *     equivalent if they are of the same class, and given component
+     *     geometries, if all components are equivalent. Throws a message as
+     *     exception if not equivalent.
+     * 
+     * Parameters:
+     * got - {OpenLayers.Geometry}
+     * expected - {OpenLayers.Geometry}
+     * options - {Object} Optional object for configuring test options.
+     */
+    function assertGeometryEqual(got, expected, options) {
+        
+        var OpenLayers = Test.AnotherWay._g_test_iframe.OpenLayers;
+
+        // compare types
+        assertEqual(typeof got, typeof expected, "Object types mismatch");
+        
+        // compare classes
+        assertEqual(got.CLASS_NAME, expected.CLASS_NAME, "Object class mismatch");
+        
+        if(got instanceof OpenLayers.Geometry.Point) {
+            // compare points
+            assertEqual(got.x, expected.x, "x mismatch");
+            assertEqual(got.y, expected.y, "y mismatch");
+            assertEqual(got.z, expected.z, "z mismatch");
+        } else {
+            // compare components
+            assertEqual(
+                got.components.length, expected.components.length,
+                "Component length mismatch for " + got.CLASS_NAME
+            );
+            for(var i=0; i<got.components.length; ++i) {
+                try {
+                    assertGeometryEqual(
+                        got.components[i], expected.components[i], options
+                    );
+                } catch(err) {
+                    throw "Bad component " + i + " for " + got.CLASS_NAME + ": " + err;
+                }
+            }
+        }
+        return true;
+    }
+    
+    /**
+     * Function: Test.AnotherWay._test_object_t.geom_eq
+     * Test if two geometry objects are equivalent.  Tests for same geometry
+     *     class, same number of components (if any), equivalent component
+     *     geometries, and same coordinates.
+     *
+     * (code)
+     * t.geom_eq(got, expected, message);
+     * (end)
+     * 
+     * Parameters:
+     * got - {OpenLayers.Geometry} Any geometry instance.
+     * expected - {OpenLayers.Geometry} The expected geometry.
+     * msg - {String} A message to print with test output.
+     * options - {Object} Optional object for configuring test options.
+     */
+    var proto = Test.AnotherWay._test_object_t.prototype;
+    proto.geom_eq = function(got, expected, msg, options) {        
+        // test geometries for equivalence
+        try {
+            assertGeometryEqual(got, expected, options);
+            this.ok(true, msg);
+        } catch(err) {
+            this.fail(msg + ": " + err);
+        }
+    }
+    
+})();
\ No newline at end of file
diff --git a/tests/run-tests.html b/tests/run-tests.html
index 46bea5d640..13c350b5ec 100644
--- a/tests/run-tests.html
+++ b/tests/run-tests.html
@@ -2307,6 +2307,7 @@ onload=function()
 // -->
 </script>
 <script type="text/javascript" src="xml_eq.js"></script>
+<script type="text/javascript" src="geom_eq.js"></script>
 </head><body>
 
 <div id="col1">