Fix permission issue with highest access level for group

If user was a member of both group and project and group access level
was higher it was not respected and user got lowest project access
level. Now it is fixed and user get highest access level
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/models/project_team.rb

@@ -118,19 +118,30 @@ class ProjectTeam
   end
 
   def guest?(user)
-    find_tm(user.id).try(:access_field) == Gitlab::Access::GUEST
+    max_tm_access(user.id) == Gitlab::Access::GUEST
   end
 
   def reporter?(user)
-    find_tm(user.id).try(:access_field) == Gitlab::Access::REPORTER
+    max_tm_access(user.id) == Gitlab::Access::REPORTER
   end
 
   def developer?(user)
-    find_tm(user.id).try(:access_field) == Gitlab::Access::DEVELOPER
+    max_tm_access(user.id) == Gitlab::Access::DEVELOPER
   end
 
   def master?(user)
-    find_tm(user.id).try(:access_field) == Gitlab::Access::MASTER
+    max_tm_access(user.id) == Gitlab::Access::MASTER
+  end
+
+  def max_tm_access(user_id)
+    access = []
+    access << project.users_projects.find_by(user_id: user_id).try(:access_field)
+
+    if group
+      access << group.users_groups.find_by(user_id: user_id).try(:access_field)
+    end
+
+    access.compact.max
   end
 
   private

spec/models/project_team_spec.rb

 require "spec_helper"
 
 describe ProjectTeam do
-  let(:group) { create(:group) }
-  let(:project) { create(:empty_project, group: group) }
-
   let(:master) { create(:user) }
   let(:reporter) { create(:user) }
   let(:guest) { create(:user) }
   let(:nonmember) { create(:user) }
 
-  before do
-    group.add_user(master, Gitlab::Access::MASTER)
-    group.add_user(reporter, Gitlab::Access::REPORTER)
-    group.add_user(guest, Gitlab::Access::GUEST)
+  context 'personal project' do
+    let(:project) { create(:empty_project) }
 
-    # Add group guest as master to this project
-    # to test project access priority over group members
-    project.team << [guest, :master]
-  end
+    before do
+      project.team << [master, :master]
+      project.team << [reporter, :reporter]
+      project.team << [guest, :guest]
+    end
 
-  describe 'members collection' do
-    it { project.team.masters.should include(master) }
-    it { project.team.masters.should include(guest) }
-    it { project.team.masters.should_not include(reporter) }
-    it { project.team.masters.should_not include(nonmember) }
+    describe 'members collection' do
+      it { project.team.masters.should include(master) }
+      it { project.team.masters.should_not include(guest) }
+      it { project.team.masters.should_not include(reporter) }
+      it { project.team.masters.should_not include(nonmember) }
+    end
+
+    describe 'access methods' do
+      it { project.team.master?(master).should be_true }
+      it { project.team.master?(guest).should be_false }
+      it { project.team.master?(reporter).should be_false }
+      it { project.team.master?(nonmember).should be_false }
+    end
   end
 
-  describe 'access methods' do
-    it { project.team.master?(master).should be_true }
-    it { project.team.master?(guest).should be_true }
-    it { project.team.master?(reporter).should be_false }
-    it { project.team.master?(nonmember).should be_false }
+  context 'group project' do
+    let(:group) { create(:group) }
+    let(:project) { create(:empty_project, group: group) }
+
+    before do
+      group.add_user(master, Gitlab::Access::MASTER)
+      group.add_user(reporter, Gitlab::Access::REPORTER)
+      group.add_user(guest, Gitlab::Access::GUEST)
+
+      # If user is a group and a project member - GitLab uses highest permission
+      # So we add group guest as master and add group master as guest
+      # to this project to test highest access
+      project.team << [guest, :master]
+      project.team << [master, :guest]
+    end
+
+    describe 'members collection' do
+      it { project.team.reporters.should include(reporter) }
+      it { project.team.masters.should include(master) }
+      it { project.team.masters.should include(guest) }
+      it { project.team.masters.should_not include(reporter) }
+      it { project.team.masters.should_not include(nonmember) }
+    end
+
+    describe 'access methods' do
+      it { project.team.reporter?(reporter).should be_true }
+      it { project.team.master?(master).should be_true }
+      it { project.team.master?(guest).should be_true }
+      it { project.team.master?(reporter).should be_false }
+      it { project.team.master?(nonmember).should be_false }
+    end
   end
 end