Spawning kinto test server instances contextually.

.travis.yml

@@ -10,4 +10,5 @@ before_install:
 - pip install --user `whoami` virtualenv
 - virtualenv .env
 - .env/bin/pip install kinto==1.3.1
-- .env/bin/pserve test/kinto.ini &
+env:
+- KINTO_PSERVE_EXECUTABLE=.env/bin/pserve

src/http.js

@@ -47,7 +47,7 @@ export default class HTTP extends EventEmitter {
         status = res.status;
         statusText = res.statusText;
         this._checkForDeprecationHeader(headers);
-        this._checkForBackoffHeader(headers);
+        this._checkForBackoffHeader(status, headers);
         const contentLength = headers.get("Content-Length");
         if (!contentLength || contentLength == 0)
           return null;
@@ -91,7 +91,11 @@ export default class HTTP extends EventEmitter {
     }
   }
 
-  _checkForBackoffHeader(headers) {
+  _checkForBackoffHeader(status, headers) {
+    // XXX Temporary fix
+    // see https://github.com/mozilla-services/kinto/issues/148
+    if (status === 304)
+      return;
     var backoffMs;
     const backoffSeconds = parseInt(headers.get("Backoff"), 10);
     if (backoffSeconds > 0) {

test/api_test.js

@@ -59,6 +59,8 @@ describe("Api", () => {
 
   describe("get backoff()", () => {
     it("should provide the remaining backoff time in ms if any", () => {
+      // Make Date#getTime always returning 1000000, for predictability
+      sandbox.stub(Date.prototype, "getTime").returns(1000 * 1000);
       sandbox.stub(root, "fetch").returns(
         fakeServerResponse(200, {}, {Backoff: "1000"}));