1 files changed, 68 insertions, 0 deletions
diff --git a/spec/support/shared_examples/unique_ip_check_shared_examples.rb b/spec/support/shared_examples/unique_ip_check_shared_examples.rb
new file mode 100644
index 00000000000..e5c8ac6a004
--- /dev/null
+++ b/spec/support/shared_examples/unique_ip_check_shared_examples.rb
@@ -0,0 +1,68 @@
+shared_context 'unique ips sign in limit' do
+  include StubENV
+  before do
+    Gitlab::Redis::Cache.with(&:flushall)
+    Gitlab::Redis::Queues.with(&:flushall)
+    Gitlab::Redis::SharedState.with(&:flushall)
+  end
+
+  before do
+    stub_env('IN_MEMORY_APPLICATION_SETTINGS', 'false')
+
+    Gitlab::CurrentSettings.update!(
+      unique_ips_limit_enabled: true,
+      unique_ips_limit_time_window: 10000
+    )
+  end
+
+  def change_ip(ip)
+    allow(Gitlab::RequestContext).to receive(:client_ip).and_return(ip)
+  end
+
+  def request_from_ip(ip)
+    change_ip(ip)
+    request
+    response
+  end
+
+  def operation_from_ip(ip)
+    change_ip(ip)
+    operation
+  end
+end
+
+shared_examples 'user login operation with unique ip limit' do
+  include_context 'unique ips sign in limit' do
+    before do
+      Gitlab::CurrentSettings.update!(unique_ips_limit_per_user: 1)
+    end
+
+    it 'allows user authenticating from the same ip' do
+      expect { operation_from_ip('ip') }.not_to raise_error
+      expect { operation_from_ip('ip') }.not_to raise_error
+    end
+
+    it 'blocks user authenticating from two distinct ips' do
+      expect { operation_from_ip('ip') }.not_to raise_error
+      expect { operation_from_ip('ip2') }.to raise_error(Gitlab::Auth::TooManyIps)
+    end
+  end
+end
+
+shared_examples 'user login request with unique ip limit' do |success_status = 200|
+  include_context 'unique ips sign in limit' do
+    before do
+      Gitlab::CurrentSettings.update!(unique_ips_limit_per_user: 1)
+    end
+
+    it 'allows user authenticating from the same ip' do
+      expect(request_from_ip('ip')).to have_gitlab_http_status(success_status)
+      expect(request_from_ip('ip')).to have_gitlab_http_status(success_status)
+    end
+
+    it 'blocks user authenticating from two distinct ips' do
+      expect(request_from_ip('ip')).to have_gitlab_http_status(success_status)
+      expect(request_from_ip('ip2')).to have_gitlab_http_status(403)
+    end
+  end
+end