Enable the RSpec/BeEql cop

Signed-off-by: Rémy Coutable <remy@rymai.me>

.rubocop.yml

@@ -784,7 +784,7 @@ RSpec/AnyInstance:
 
 # Check for expectations where `be(...)` can replace `eql(...)`.
 RSpec/BeEql:
-  Enabled: false
+  Enabled: true
 
 # Check that the first argument to the top level describe is the tested class or
 # module.

spec/lib/gitlab/ldap/user_spec.rb

@@ -95,10 +95,10 @@ describe Gitlab::LDAP::User, lib: true do
 
     it 'maintains an identity per provider' do
       existing_user = create(:omniauth_user, email: 'john@example.com', provider: 'twitter')
-      expect(existing_user.identities.count).to eql(1)
+      expect(existing_user.identities.count).to be(1)
 
       ldap_user.save
-      expect(ldap_user.gl_user.identities.count).to eql(2)
+      expect(ldap_user.gl_user.identities.count).to be(2)
 
       # Expect that find_by provider only returns a single instance of an identity and not an Enumerable
       expect(ldap_user.gl_user.identities.find_by(provider: 'twitter')).to be_instance_of Identity

spec/lib/gitlab/o_auth/user_spec.rb

@@ -148,7 +148,7 @@ describe Gitlab::OAuth::User, lib: true do
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql uid
                 expect(gl_user.email).to eql 'johndoe@example.com'
-                expect(gl_user.identities.length).to eql 2
+                expect(gl_user.identities.length).to be 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array(
                   [ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
@@ -167,7 +167,7 @@ describe Gitlab::OAuth::User, lib: true do
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql 'john'
                 expect(gl_user.email).to eql 'john@example.com'
-                expect(gl_user.identities.length).to eql 2
+                expect(gl_user.identities.length).to be 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array(
                   [ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },

spec/lib/gitlab/saml/user_spec.rb

@@ -155,7 +155,7 @@ describe Gitlab::Saml::User, lib: true do
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql uid
                 expect(gl_user.email).to eql 'john@mail.com'
-                expect(gl_user.identities.length).to eql 2
+                expect(gl_user.identities.length).to be 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array([ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
                                                             { provider: 'saml', extern_uid: uid }
@@ -178,7 +178,7 @@ describe Gitlab::Saml::User, lib: true do
                 expect(gl_user).to be_valid
                 expect(gl_user.username).to eql 'john'
                 expect(gl_user.email).to eql 'john@mail.com'
-                expect(gl_user.identities.length).to eql 2
+                expect(gl_user.identities.length).to be 2
                 identities_as_hash = gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array([ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
                                                             { provider: 'saml', extern_uid: uid }
@@ -204,7 +204,7 @@ describe Gitlab::Saml::User, lib: true do
                 local_gl_user = local_saml_user.gl_user
 
                 expect(local_gl_user).to be_valid
-                expect(local_gl_user.identities.length).to eql 2
+                expect(local_gl_user.identities.length).to be 2
                 identities_as_hash = local_gl_user.identities.map { |id| { provider: id.provider, extern_uid: id.extern_uid } }
                 expect(identities_as_hash).to match_array([ { provider: 'ldapmain', extern_uid: 'uid=user1,ou=People,dc=example' },
                                                             { provider: 'saml', extern_uid: 'uid=user1,ou=People,dc=example' }