2 files changed, 45 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ldap/auth_hash_spec.rb b/spec/lib/gitlab/ldap/auth_hash_spec.rb
index 1785094af10..9c30ddd7fe2 100644
--- a/spec/lib/gitlab/ldap/auth_hash_spec.rb
+++ b/spec/lib/gitlab/ldap/auth_hash_spec.rb
@@ -1,6 +1,8 @@
 require 'spec_helper'
 
 describe Gitlab::LDAP::AuthHash do
+  include LdapHelpers
+
   let(:auth_hash) do
     described_class.new(
       OmniAuth::AuthHash.new(
@@ -83,4 +85,26 @@ describe Gitlab::LDAP::AuthHash do
       end
     end
   end
+
+  describe '#username' do
+    context 'if lowercase_usernames setting is' do
+      let(:given_uid) { 'uid=John Smith,ou=People,dc=example,dc=com' }
+
+      before do
+        raw_info[:uid] = ['JOHN']
+      end
+
+      it 'enabled the username attribute is lower cased' do
+        stub_ldap_config(lowercase_usernames: true)
+
+        expect(auth_hash.username).to eq 'john'
+      end
+
+      it 'disabled the username attribute is not lower cased' do
+        stub_ldap_config(lowercase_usernames: false)
+
+        expect(auth_hash.username).to eq 'JOHN'
+      end
+    end
+  end
 end
diff --git a/spec/lib/gitlab/ldap/person_spec.rb b/spec/lib/gitlab/ldap/person_spec.rb
index ff29d9aa5be..b54d4000b53 100644
--- a/spec/lib/gitlab/ldap/person_spec.rb
+++ b/spec/lib/gitlab/ldap/person_spec.rb
@@ -139,6 +139,27 @@ describe Gitlab::LDAP::Person do
         expect(person.username).to eq(attr_value)
       end
     end
+
+    context 'if lowercase_usernames setting is' do
+      let(:username_attribute) { 'uid' }
+
+      before do
+        entry[username_attribute] = 'JOHN'
+        @person = described_class.new(entry, 'ldapmain')
+      end
+
+      it 'enabled the username attribute is lower cased' do
+        stub_ldap_config(lowercase_usernames: true)
+
+        expect(@person.username).to eq 'john'
+      end
+
+      it 'disabled the username attribute is not lower cased' do
+        stub_ldap_config(lowercase_usernames: false)
+
+        expect(@person.username).to eq 'JOHN'
+      end
+    end
   end
 
   def assert_generic_test(test_description, got, expected)