Add tests for limit=0 routes

Passing ?limit=0 to the blueprints/list, blueprints/changes,
projects/list, modules/list should always return the total possible
results, not 0.

Also move the composer-cli test_diff to the end so that it will work
consistently. Do this by naming it test_z_diff.

tests/composer/test_blueprints.py

@@ -73,21 +73,6 @@ class BlueprintsTest(unittest.TestCase):
         self.assertTrue("example-http-server" in output)
         self.assertTrue("Recipe example-http-server, version 0.0.1 saved." in output)
 
-    @unittest.skipUnless(os.path.exists("/run/weldr/api.socket"), "Test requires a running API server")
-    def test_diff(self):
-        """blueprints diff"""
-        # Get the oldest commit, it should be 2nd to last line
-        with captured_output() as (out, _):
-            rc = blueprints_changes("/run/weldr/api.socket", 0, ["example-http-server"], show_json=False)
-        output = out.getvalue().strip().splitlines()
-        first_commit = output[-2].split()[1]
-
-        with captured_output() as (out, _):
-            rc = blueprints_diff("/run/weldr/api.socket", 0, ["example-http-server", first_commit, "HEAD"], show_json=False)
-        output = out.getvalue().strip()
-        self.assertTrue(rc == 0)
-        self.assertTrue("Changed Version" in output)
-
     @unittest.skipUnless(os.path.exists("/run/weldr/api.socket"), "Test requires a running API server")
     def test_save_0(self):
         """blueprints save"""
@@ -172,3 +157,20 @@ class BlueprintsTest(unittest.TestCase):
         """blueprints workspace"""
         rc = blueprints_push("/run/weldr/api.socket", 0, ["example-http-server.toml"], show_json=False)
         self.assertTrue(rc == 0)
+
+    # XXX MUST COME LAST
+    # XXX which is what _z_ ensures
+    @unittest.skipUnless(os.path.exists("/run/weldr/api.socket"), "Test requires a running API server")
+    def test_z_diff(self):
+        """blueprints diff"""
+        # Get the oldest commit, it should be 2nd to last line
+        with captured_output() as (out, _):
+            rc = blueprints_changes("/run/weldr/api.socket", 0, ["example-http-server"], show_json=False)
+        output = out.getvalue().strip().splitlines()
+        first_commit = output[-2].split()[1]
+
+        with captured_output() as (out, _):
+            rc = blueprints_diff("/run/weldr/api.socket", 0, ["example-http-server", first_commit, "HEAD"], show_json=False)
+        output = out.getvalue().strip()
+        self.assertTrue(rc == 0)
+        self.assertTrue("Changed Version" in output)

tests/pylorax/test_server.py

@@ -141,6 +141,13 @@ class ServerTestCase(unittest.TestCase):
         data = json.loads(resp.data)
         self.assertEqual(data, list_dict)
 
+        # Make sure limit=0 still returns the correct total
+        resp = self.server.get("/api/v0/blueprints/list?limit=0")
+        data = json.loads(resp.data)
+        self.assertEqual(data["limit"], 0)
+        self.assertEqual(data["offset"], 0)
+        self.assertEqual(data["total"], list_dict["total"])
+
     def test_03_blueprints_info_1(self):
         """Test the /api/v0/blueprints/info route with one blueprint"""
         info_dict_1 = {"changes":[{"changed":False, "name":"example-http-server"}],
@@ -214,6 +221,13 @@ class ServerTestCase(unittest.TestCase):
         self.assertEqual(data["blueprints"][0]["name"], "example-http-server")
         self.assertEqual(len(data["blueprints"][0]["changes"]), 1)
 
+        # Make sure limit=0 still returns the correct total
+        resp = self.server.get("/api/v0/blueprints/changes/example-http-server?limit=0")
+        data = json.loads(resp.data)
+        self.assertEqual(data["limit"], 0)
+        self.assertEqual(data["offset"], 0)
+        self.assertEqual(data["blueprints"][0]["total"], 1)
+
     def test_04a_blueprints_diff_empty_ws(self):
         """Test the /api/v0/diff/NEWEST/WORKSPACE with empty workspace"""
         resp = self.server.get("/api/v0/blueprints/diff/example-glusterfs/NEWEST/WORKSPACE")
@@ -515,6 +529,13 @@ class ServerTestCase(unittest.TestCase):
         projects = data.get("projects")
         self.assertEqual(len(projects) > 10, True)
 
+        expected_total = data["total"]
+
+        # Make sure limit=0 still returns the correct total
+        resp = self.server.get("/api/v0/projects/list?limit=0")
+        data = json.loads(resp.data)
+        self.assertEqual(data["total"], expected_total)
+
     def test_projects_info(self):
         """Test /api/v0/projects/info/<project_names>"""
         resp = self.server.get("/api/v0/projects/info/bash")
@@ -676,6 +697,8 @@ class ServerTestCase(unittest.TestCase):
         self.assertEqual(len(modules) > 10, True)
         self.assertEqual(modules[0]["group_type"], "rpm")
 
+        expected_total = data["total"]
+
         resp = self.server.get("/api/v0/modules/list/d*")
         data = json.loads(resp.data)
         self.assertNotEqual(data, None)
@@ -683,6 +706,12 @@ class ServerTestCase(unittest.TestCase):
         self.assertEqual(len(modules) > 0, True)
         self.assertEqual(modules[0]["name"].startswith("d"), True)
 
+        # Make sure limit=0 still returns the correct total
+        resp = self.server.get("/api/v0/modules/list?limit=0")
+        data = json.loads(resp.data)
+        self.assertNotEqual(data, None)
+        self.assertEqual(data["total"], expected_total)
+
     def test_modules_info(self):
         """Test /api/v0/modules/info"""
         resp = self.server.get("/api/v0/modules/info/bash")