From e2a132150af90c3578e5553d71b1b009d5074569 Mon Sep 17 00:00:00 2001
From: Richard Vowles <richard@bluetrainsoftware.com>
Date: Fri, 1 May 2026 12:03:53 +1200
Subject: [PATCH 1/3] fix: rescue when there is an initial timeout

If the first poll is a timeout or similar, then
it will potentially cause an error all the way up
the stack and prevent subsequent polling from
sorting the situation out.
---
 examples/sinatra/Gemfile.lock                 |   3 +-
 lib/feature_hub/sdk/poll_edge_service.rb      |  36 +--
 .../feature_hub/sdk/poll_edge_service_spec.rb | 250 ++++++++++--------
 3 files changed, 163 insertions(+), 126 deletions(-)

diff --git a/examples/sinatra/Gemfile.lock b/examples/sinatra/Gemfile.lock
index 2e5e8fc..8e33d5e 100644
--- a/examples/sinatra/Gemfile.lock
+++ b/examples/sinatra/Gemfile.lock
@@ -4,7 +4,7 @@ PATH
     featurehub-sdk (2.1.1)
       concurrent-ruby (~> 1.3)
       faraday
-      ld-eventsource (~> 2.5.1)
+      ld-eventsource (>= 2.5.1, < 2.7.0)
       murmurhash3 (~> 0.1.7)
       sem_version (~> 2.0.0)
 
@@ -44,6 +44,7 @@ GEM
     faraday-rack (1.0.0)
     faraday-retry (1.0.4)
     ffi (1.17.3-x86_64-darwin)
+    ffi (1.17.3-x86_64-linux-gnu)
     ffi-compiler (1.3.2)
       ffi (>= 1.15.5)
       rake
diff --git a/lib/feature_hub/sdk/poll_edge_service.rb b/lib/feature_hub/sdk/poll_edge_service.rb
index d760dde..5398346 100644
--- a/lib/feature_hub/sdk/poll_edge_service.rb
+++ b/lib/feature_hub/sdk/poll_edge_service.rb
@@ -108,21 +108,27 @@ def get_updates
         headers["if-none-match"] = @etag unless @etag.nil?
 
         @logger&.debug("polling for #{url}")
-        resp = @conn.get url, {}, headers
-        case resp.status
-        when 200
-          success(resp)
-        when 236
-          stopped_task
-          success(resp)
-        when 404, 400 # no such key
-          @repository.notify("failed", nil, "polling")
-          cancel_task
-          @logger&.error("featurehub: key does not exist, stopping polling")
-        when 503 # dacha busy
-          @logger&.debug("featurehub: dacha is busy, trying again")
-        else
-          @logger&.debug("featurehub: unknown error #{resp.status}") if resp.status != 304
+        begin
+          resp = @conn.get url, {}, headers
+          case resp.status
+          when 200
+            success(resp)
+          when 236
+            stopped_task
+            success(resp)
+          when 404, 400 # no such key
+            @repository.notify("failed", nil, "polling")
+            cancel_task
+            @logger&.error("featurehub: key does not exist, stopping polling")
+          when 503 # dacha busy
+            @logger&.debug("featurehub: dacha is busy, trying again")
+          else
+            @logger&.debug("featurehub: unknown error #{resp.status}") if resp.status != 304
+          end
+        rescue StandardError => e
+          # we can get timeout errors for transient network failures, this should not prevent the
+          # next poll from happening however
+          @logger&.error("featurehub: failed to connect or similar error #{e&.message}")
         end
       end
 
diff --git a/spec/feature_hub/sdk/poll_edge_service_spec.rb b/spec/feature_hub/sdk/poll_edge_service_spec.rb
index 4ccf398..60bc9a7 100644
--- a/spec/feature_hub/sdk/poll_edge_service_spec.rb
+++ b/spec/feature_hub/sdk/poll_edge_service_spec.rb
@@ -8,155 +8,185 @@
   let(:timer) { instance_double(Concurrent::TimerTask) }
   let(:interval) { 0 }
   let(:logger) { double("logger") }
-  let(:poller) { described_class.new(repo, ["api_key"], "url/", interval, logger) }
   let(:conn) { instance_double(Faraday::Connection) }
   let(:resp) { instance_double(Faraday::Response) }
 
-  before do
-    allow(logger).to receive(:debug)
-    allow(logger).to receive(:info)
-    allow(Faraday).to receive(:new).with(url: "url/").and_return(conn)
-    allow(Concurrent::TimerTask).to receive(:new).with(execution_interval: interval, run_now: false).and_return(timer)
-  end
+  context "when polling" do
+    let(:poller) { described_class.new(repo, ["api_key"], "url/", interval, logger) }
 
-  context "with a different header" do
-    let(:interval) { 20 }
+    before(:each) do
+      allow(logger).to receive(:debug)
+      allow(logger).to receive(:info)
+      allow(Faraday).to receive(:new).with(url: "url/").and_return(conn)
+      allow(Concurrent::TimerTask).to receive(:new).with(execution_interval: interval, run_now: false).and_return(timer)
+      allow(timer).to receive(:shutdown)
+    end
 
-    it "should allow me to set a different header" do
-      expect(Digest::SHA256).to receive(:hexdigest).and_return("12345")
+    after(:each) do
+      poller.close
+    end
 
-      expect(conn).to receive(:get).with("features?apiKey=api_key&contextSha=12345",
-                                         {},
-                                         hash_including("x-featurehub" => "blah"))
-                                   .and_return(resp)
+    context "conn fails with timeout error" do
+      let(:interval) { 20 }
 
-      expect(resp).to receive(:status).and_return(200)
-      expect(resp).to receive(:headers).and_return({}).twice
-      expect(resp).to receive(:body).and_return("[]")
-      expect(timer).to receive(:execute)
+      it "should continue to poll and not cancel if an exception is thrown" do
+        expect(Digest::SHA256).to receive(:hexdigest).and_return("12345")
+        expect(conn).to receive(:get).with("features?apiKey=api_key&contextSha=12345",
+                                           {},
+                                           hash_including("x-featurehub" => "blah"))
+                                     .and_throw(Faraday::TimeoutError)
+        expect(logger).to receive(:error).with("featurehub: failed to connect or similar error uncaught throw Faraday::TimeoutError")
 
-      poller.context_change("blah")
-      expect(poller.sha_context).to eq("12345")
-    end
-  end
+        expect(timer).to receive(:execute) # starts the next timer going
+        expect(repo).not_to receive(:notify)
+
+        poller.context_change("blah")
 
-  # test essentially works, can't figure out how to get it to match
-  # it "should pick up the etag header and try and use it again" do
-  #   expect(conn).to receive(:get).with("features?apiKey=api_key",
-  #                                      request: { timeout: 12 },
-  #                                      headers: hash_including(accept: "application/json"))
-  #                                .and_return(resp)
-  #   expect(resp).to receive(:status).and_return(200).at_least(:twice)
-  #   expect(resp).to receive(:headers).and_return({"etag" => "12345"}).at_least(:twice)
-  #   expect(resp).to receive(:body).and_return("[]").twice
-  #   expect(timer).to receive(:execute).twice
-  #   expect(timer).to receive(:shutdown)
-  #   poller.poll
-  #   poller.close
-  #   expect(conn).to receive(:get).with("features?apiKey=api_key",
-  #                                      request: { timeout: 12 },
-  #                                      headers: hash_including("if-none-matches" => "12345"))
-  #                                .and_return(resp).once
-  #   poller.poll
-  # end
-
-  context "setting a 20 second interval" do
-    let(:interval) { 20 }
-
-    before do
-      expect(conn).to receive(:get).with("features?apiKey=api_key&contextSha=0",
-                                         {},
-                                         hash_including(accept: "application/json"))
-                                   .and_return(resp)
+        expect(poller.cancel).to eq(false)
+      end
     end
 
-    it "should start polling and process a 236 response" do
-      expect(resp).to receive(:status).and_return(236)
-      expect(resp).to receive(:headers).and_return({}).twice
-      expect(resp).to receive(:body).and_return("[]")
-      expect(timer).to receive(:shutdown)
+    context "with a different header" do
+      let(:interval) { 20 }
 
-      poller.poll
+      it "should allow me to set a different header" do
+        expect(Digest::SHA256).to receive(:hexdigest).and_return("12345")
 
-      expect(poller.stopped).to eq(true)
-    end
+        expect(conn).to receive(:get).with("features?apiKey=api_key&contextSha=12345",
+                                           {},
+                                           hash_including("x-featurehub" => "blah"))
+                                     .and_return(resp)
 
-    it "should try again on a 503" do
-      expect(resp).to receive(:status).and_return(503)
-      expect(timer).to receive(:execute)
-      poller.poll
-      expect(poller.cancel).to eq(false)
-    end
+        expect(resp).to receive(:status).and_return(200)
+        expect(resp).to receive(:headers).and_return({}).twice
+        expect(resp).to receive(:body).and_return("[]")
+        expect(timer).to receive(:execute)
 
-    it "should cancel on a 404" do
-      expect(resp).to receive(:status).and_return(404)
-      expect(repo).to receive(:notify).with("failed", nil, "polling")
-      expect(logger).to receive(:error)
-      expect(timer).to receive(:shutdown)
-      poller.poll
-      expect(poller.cancel).to eq(true)
+        poller.context_change("blah")
+        expect(poller.sha_context).to eq("12345")
+      end
     end
 
-    context "should start polling and process a 200 response" do
+    # test essentially works, can't figure out how to get it to match
+    # it "should pick up the etag header and try and use it again" do
+    #   expect(conn).to receive(:get).with("features?apiKey=api_key",
+    #                                      request: { timeout: 12 },
+    #                                      headers: hash_including(accept: "application/json"))
+    #                                .and_return(resp)
+    #   expect(resp).to receive(:status).and_return(200).at_least(:twice)
+    #   expect(resp).to receive(:headers).and_return({"etag" => "12345"}).at_least(:twice)
+    #   expect(resp).to receive(:body).and_return("[]").twice
+    #   expect(timer).to receive(:execute).twice
+    #   expect(timer).to receive(:shutdown)
+    #   poller.poll
+    #   poller.close
+    #   expect(conn).to receive(:get).with("features?apiKey=api_key",
+    #                                      request: { timeout: 12 },
+    #                                      headers: hash_including("if-none-matches" => "12345"))
+    #                                .and_return(resp).once
+    #   poller.poll
+    # end
+
+    context "setting a 20 second interval" do
+      let(:interval) { 20 }
+
       before do
-        expect(resp).to receive(:status).and_return(200)
+        expect(conn).to receive(:get).with("features?apiKey=api_key&contextSha=0",
+                                           {},
+                                           hash_including(accept: "application/json"))
+                                     .and_return(resp)
+      end
+
+      it "should start polling and process a 236 response" do
+        expect(resp).to receive(:status).and_return(236)
+        expect(resp).to receive(:headers).and_return({}).twice
+        expect(resp).to receive(:body).and_return("[]")
+        expect(timer).to receive(:shutdown)
+
+        poller.poll
+
+        expect(poller.stopped).to eq(true)
+      end
+
+      it "should try again on a 503" do
+        expect(resp).to receive(:status).and_return(503)
         expect(timer).to receive(:execute)
+        poller.poll
+        expect(poller.cancel).to eq(false)
       end
 
-      context "with an etag header" do
+      it "should cancel on a 404" do
+        expect(resp).to receive(:status).and_return(404)
+        expect(repo).to receive(:notify).with("failed", nil, "polling")
+        expect(logger).to receive(:error)
+        expect(timer).to receive(:shutdown)
+        poller.poll
+        expect(poller.cancel).to eq(true)
+      end
+
+      context "should start polling and process a 200 response" do
         before do
-          expect(resp).to receive(:headers).and_return({ "etag" => "abcd" }).twice
+          expect(resp).to receive(:status).and_return(200)
+          expect(timer).to receive(:execute)
         end
 
-        it "and no data" do
-          expect(resp).to receive(:body).and_return("[]")
+        context "with an etag header" do
+          before do
+            expect(resp).to receive(:headers).and_return({ "etag" => "abcd" }).twice
+          end
 
-          poller.poll
+          it "and no data" do
+            expect(resp).to receive(:body).and_return("[]")
 
-          expect(poller.etag).to eq("abcd")
+            poller.poll
+
+            expect(poller.etag).to eq("abcd")
+          end
         end
-      end
 
-      context "with an cache control header" do
-        it "that does not contain max-age" do
-          expect(resp).to receive(:headers)
-            .and_return({ "cache-control" => "no-store, no-age, bark, bark, bark" })
-            .at_least(:once)
-          expect(resp).to receive(:body).and_return("[]")
+        context "with an cache control header" do
+          it "that does not contain max-age" do
+            expect(resp).to receive(:headers)
+                              .and_return({ "cache-control" => "no-store, no-age, bark, bark, bark" })
+                              .at_least(:once)
+            expect(resp).to receive(:body).and_return("[]")
 
-          poller.poll
+            poller.poll
 
-          expect(poller.interval).to eq(interval)
-        end
+            expect(poller.interval).to eq(interval)
+          end
 
-        it "and the timer is created with it and its interval is set correctly" do
-          expect(resp).to receive(:headers)
-            .and_return({ "cache-control" => "no-store, max-age=24, bark, bark, bark" })
-            .at_least(:once)
-          expect(resp).to receive(:body).and_return("[]")
-          expect(timer).to receive(:execution_interval=).with(24)
+          it "and the timer is created with it and its interval is set correctly" do
+            expect(resp).to receive(:headers)
+                              .and_return({ "cache-control" => "no-store, max-age=24, bark, bark, bark" })
+                              .at_least(:once)
+            expect(resp).to receive(:body).and_return("[]")
+            expect(timer).to receive(:execution_interval=).with(24)
 
-          poller.poll
+            poller.poll
+          end
         end
-      end
 
-      context "with no headers" do
-        before do
-          expect(resp).to receive(:headers).and_return({}).twice
-        end
+        context "with no headers" do
+          before do
+            expect(resp).to receive(:headers).and_return({}).twice
+          end
 
-        it "and no data" do
-          expect(resp).to receive(:body).and_return("[]")
+          it "and no data" do
+            expect(resp).to receive(:body).and_return("[]")
 
-          poller.poll
-        end
+            poller.poll
+          end
 
-        it "and have environments" do
-          expect(resp).to receive(:body).and_return('[{"features": []}, {"features": []}]')
-          expect(repo).to receive(:notify).with("features", [], "polling").twice
-          poller.poll
+          it "and have environments" do
+            expect(resp).to receive(:body).and_return('[{"features": []}, {"features": []}]')
+            expect(repo).to receive(:notify).with("features", [], "polling").twice
+            poller.poll
+          end
         end
       end
     end
+
   end
+
 end

From e7e76fa65f04caf00487a56e562f9a5c33787b3d Mon Sep 17 00:00:00 2001
From: Richard Vowles <richard@bluetrainsoftware.com>
Date: Fri, 1 May 2026 12:05:28 +1200
Subject: [PATCH 2/3] these files should not be in the repo

---
 examples/sinatra/sinatra.iml | 51 ---------------------
 featurehub-sdk.iml           | 87 ------------------------------------
 2 files changed, 138 deletions(-)
 delete mode 100644 examples/sinatra/sinatra.iml
 delete mode 100644 featurehub-sdk.iml

diff --git a/examples/sinatra/sinatra.iml b/examples/sinatra/sinatra.iml
deleted file mode 100644
index 17999a8..0000000
--- a/examples/sinatra/sinatra.iml
+++ /dev/null
@@ -1,51 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="RUBY_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="rbenv: 3.3.10" jdkType="RUBY_SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="PROVIDED" name="addressable (v2.8.9, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="bundler (v2.3.15, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="concurrent-ruby (v1.3.6, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="connection_pool (v3.0.2, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="daemons (v1.4.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="dalli (v4.3.3, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="domain_name (v0.6.20240107, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="eventmachine (v1.2.7, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday (v1.10.5, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-em_http (v1.0.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-em_synchrony (v1.0.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-excon (v1.1.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-httpclient (v1.0.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-multipart (v1.2.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-net_http (v1.0.2, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-net_http_persistent (v1.2.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-patron (v1.0.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-rack (v1.0.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-retry (v1.0.4, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="ffi (v1.17.3, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="ffi-compiler (v1.3.2, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="http (v5.3.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="http-cookie (v1.1.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="http-form_data (v2.3.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="ld-eventsource (v2.5.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="llhttp-ffi (v0.5.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="logger (v1.7.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="multipart-post (v2.4.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="murmurhash3 (v0.1.7, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="mustermann (v2.0.2, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="public_suffix (v7.0.5, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="rack (v2.2.6.4, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="rack-protection (v2.2.3, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="rake (v13.3.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="redis (v5.4.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="redis-client (v0.28.0, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="ruby2_keywords (v0.0.5, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="sem_version (v2.0.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="shotgun (v0.9.2, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="sinatra (v2.2.3, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="thin (v1.8.1, rbenv: 3.3.10) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="tilt (v2.1.0, rbenv: 3.3.10) [gem]" level="application" />
-  </component>
-</module>
\ No newline at end of file
diff --git a/featurehub-sdk.iml b/featurehub-sdk.iml
deleted file mode 100644
index 323d9d1..0000000
--- a/featurehub-sdk.iml
+++ /dev/null
@@ -1,87 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="RUBY_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
-    <exclude-output />
-    <content url="file://$MODULE_DIR$" />
-    <orderEntry type="jdk" jdkName="rbenv: 3.0.6" jdkType="RUBY_SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="PROVIDED" name="addressable (v2.8.0, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="ast (v2.4.2, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="concurrent-ruby (v1.1.10, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="diff-lcs (v1.5.0, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="docile (v1.4.0, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="domain_name (v0.5.20190701, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday (v2.3.0, rbenv: 3.0.6) [gem]" level="application" />
-    <orderEntry type="library" scope="PROVIDED" name="faraday-net_http (v2.0.3, rbenv: 3.0.6) [gem]" level="application" />
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\ No newline at end of file

From 72859783a5349c0a55944b193071037f8f80a2c2 Mon Sep 17 00:00:00 2001
From: Richard Vowles <richard@bluetrainsoftware.com>
Date: Fri, 1 May 2026 12:08:31 +1200
Subject: [PATCH 3/3] fix indentation

---
 spec/feature_hub/sdk/poll_edge_service_spec.rb | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/spec/feature_hub/sdk/poll_edge_service_spec.rb b/spec/feature_hub/sdk/poll_edge_service_spec.rb
index 60bc9a7..5cc06c6 100644
--- a/spec/feature_hub/sdk/poll_edge_service_spec.rb
+++ b/spec/feature_hub/sdk/poll_edge_service_spec.rb
@@ -147,8 +147,8 @@
         context "with an cache control header" do
           it "that does not contain max-age" do
             expect(resp).to receive(:headers)
-                              .and_return({ "cache-control" => "no-store, no-age, bark, bark, bark" })
-                              .at_least(:once)
+              .and_return({ "cache-control" => "no-store, no-age, bark, bark, bark" })
+              .at_least(:once)
             expect(resp).to receive(:body).and_return("[]")
 
             poller.poll
@@ -158,8 +158,8 @@
 
           it "and the timer is created with it and its interval is set correctly" do
             expect(resp).to receive(:headers)
-                              .and_return({ "cache-control" => "no-store, max-age=24, bark, bark, bark" })
-                              .at_least(:once)
+              .and_return({ "cache-control" => "no-store, max-age=24, bark, bark, bark" })
+              .at_least(:once)
             expect(resp).to receive(:body).and_return("[]")
             expect(timer).to receive(:execution_interval=).with(24)
 
@@ -186,7 +186,5 @@
         end
       end
     end
-
   end
-
 end