1 files changed, 89 insertions, 0 deletions
diff --git a/spec/lib/banzai/filter/broadcast_message_placeholders_filter_spec.rb b/spec/lib/banzai/filter/broadcast_message_placeholders_filter_spec.rb
new file mode 100644
index 00000000000..1a90abc12d9
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+++ b/spec/lib/banzai/filter/broadcast_message_placeholders_filter_spec.rb
@@ -0,0 +1,89 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Banzai::Filter::BroadcastMessagePlaceholdersFilter do
+  include FilterSpecHelper
+
+  subject { filter(text, current_user: user, broadcast_message_placeholders: true).to_html }
+
+  describe 'when current user is set' do
+    let_it_be(:user) { create(:user, email: "helloworld@example.com", name: "GitLab Tanunki :)") }
+
+    context 'replaces placeholder in text' do
+      let(:text) { 'Email: {{email}}' }
+
+      it { expect(subject).to eq("Email: #{user.email}") }
+    end
+
+    context 'replaces placeholder when they are in a link' do
+      let(:text) { '<a href="http://example.com?email={{email}}"">link</a>' }
+
+      it { expect(subject).to eq("<a href=\"http://example.com?email=helloworld%40example.com\">link</a>") }
+    end
+
+    context 'replaces placeholder when they are in an escaped link' do
+      let(:text) { '<a href="http://example.com?name=%7B%7Bname%7D%7D">link</a>' }
+
+      it { expect(subject).to eq("<a href=\"http://example.com?name=GitLab+Tanunki+%3A%29\">link</a>") }
+    end
+
+    context 'works with empty text' do
+      let(:text) {" "}
+
+      it { expect(subject).to eq(" ") }
+    end
+
+    context 'replaces multiple placeholders in a given text' do
+      let(:text) { "{{email}} {{name}}" }
+
+      it { expect(subject).to eq("#{user.email} #{user.name}") }
+    end
+
+    context 'available placeholders' do
+      context 'replaces the email of the user' do
+        let(:text) { "{{email}}"}
+
+        it { expect(subject).to eq(user.email) }
+      end
+
+      context 'replaces the name of the user' do
+        let(:text) { "{{name}}"}
+
+        it { expect(subject).to eq(user.name) }
+      end
+
+      context 'replaces the ID of the user' do
+        let(:text) { "{{user_id}}" }
+
+        it { expect(subject).to eq(user.id.to_s) }
+      end
+
+      context 'replaces the username of the user' do
+        let(:text) { "{{username}}" }
+
+        it { expect(subject).to eq(user.username) }
+      end
+
+      context 'replaces the instance_id' do
+        before do
+          stub_application_setting(uuid: '123')
+        end
+
+        let(:text) { "{{instance_id}}" }
+
+        it { expect(subject).to eq(Gitlab::CurrentSettings.uuid) }
+      end
+    end
+  end
+
+  describe 'when there is no current user set' do
+    let(:user) { nil }
+
+    context 'replaces placeholder with empty string' do
+      let(:text) { "Email: {{email}}" }
+
+      it { expect(subject).to eq("Email: ") }
+    end
+  end
+end