From c044a331eda306bac2383aecb9996f987029dba0 Mon Sep 17 00:00:00 2001
From: "Damien F. Katz" <damien@apache.org>
Date: Wed, 13 May 2009 18:27:11 +0000
Subject: Adding testing for GET /_changes?continuous=true by adding a GET
 /_sleep?time=Msecs call, which allows the browser to process the waiting data
 on the other async XHR request.

git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@774474 13f79535-47bb-0310-9956-ffa450edef68
---
 share/www/script/test/changes.js | 76 ++++++++++++++++++++++++++++++++++------
 1 file changed, 66 insertions(+), 10 deletions(-)

(limited to 'share/www/script/test/changes.js')

diff --git a/share/www/script/test/changes.js b/share/www/script/test/changes.js
index fef2bcca..fe8a1cd5 100644
--- a/share/www/script/test/changes.js
+++ b/share/www/script/test/changes.js
@@ -10,29 +10,85 @@
 // License for the specific language governing permissions and limitations under
 // the License.
 
+
 couchTests.changes = function(debug) {
   var db = new CouchDB("test_suite_db");
   db.deleteDb();
   db.createDb();
   if (debug) debugger;
   
-  
-  var req = CouchDB.newXhr();
-  
-  req.open("GET", "/test_suite_db/_changes", false);
-  req.send("");
+  var req = CouchDB.request("GET", "/test_suite_db/_changes");
   var resp = JSON.parse(req.responseText);
   
   T(resp.results.length == 0 && resp.last_seq==0)
   
-  var doc = {_id:"foo", bar:1};
-  db.save(doc);
+  var docFoo = {_id:"foo", bar:1};
+  db.save(docFoo);
   
-  req.open("GET", "/test_suite_db/_changes", false);
-  req.send("");
+  req = CouchDB.request("GET", "/test_suite_db/_changes");
   var resp = JSON.parse(req.responseText);
   
   T(resp.results.length == 1 && resp.last_seq==1)
-  T(resp.results[0].changes[0].rev == doc._rev)
+  T(resp.results[0].changes[0].rev == docFoo._rev)
+  
+  var xhr;
+  
+  try {
+    xhr = CouchDB.newXhr();
+  } catch (err) {  
+  }
+  
+  if (xhr) {
+    // Only test the continuous stuff if we have a real XHR object
+    // with real async support.
+    
+    var sleep = function(msecs) {
+      // by making a slow sync request, weallows the waiting XHR request data
+      // to be received.
+      var req = CouchDB.request("GET", "/_sleep?time=" + msecs);
+      T(JSON.parse(req.responseText).ok == true);
+    }
+  
+    var parse_changes_line = function(line) {
+      if (line.charAt(line.length-1) == ",") {
+        line = line.substring(0, line.length-1);
+      }
+      return JSON.parse(line);
+    }
+  
+    xhr.open("GET", "/test_suite_db/_changes?continuous=true", true);
+    xhr.send("");
+  
+    var docBar = {_id:"bar", bar:1};
+    db.save(docBar);
+  
+    sleep(100);
+    var lines = xhr.responseText.split("\n");
+  
+    T(lines[0]='{"results":[');
+  
+    var change = parse_changes_line(lines[1]);
+  
+    T(change.seq == 1)
+    T(change.id == "foo")
+  
+    change = parse_changes_line(lines[2]);
+  
+    T(change.seq == 2)
+    T(change.id == "bar")
+    T(change.changes[0].rev == docBar._rev)
+  
+    var docBaz = {_id:"baz", baz:1};
+    db.save(docBaz);
+  
+    sleep(100);
+    var lines = xhr.responseText.split("\n");
+  
+    change = parse_changes_line(lines[3]);
+  
+    T(change.seq == 3);
+    T(change.id == "baz");
+    T(change.changes[0].rev == docBaz._rev);
   
+  }
 };
-- 
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