diff --git a/test/system/submissions_test.rb b/test/system/submissions_test.rb
--- a/test/system/submissions_test.rb
+++ b/test/system/submissions_test.rb
@@ -34,6 +34,89 @@
     assert_text 'You are not authorized'
   end
 
+  test "admin view submissions" do
+    login('admin','admin')
+
+    #view own submission
+    within 'header' do
+      click_on 'Submission'
+      click_on 'View'
+    end
+    click_on 'Go'
+
+    #click the first <a> item in the table
+    first('table a').click
+    assert_text "Source Code"
+    assert_text "Task"
+
+    #view other submission of available problem
+    within 'header' do
+      click_on 'Manage'
+      click_on 'Problem'
+    end
+
+    row = find('tr', text: 'add_full_name')
+    within row do
+      click_on 'Stat'
+    end
+
+    assert_text "Submissions"
+    within find('tr', text: 'john') do
+      first('a').click
+    end
+    assert_text "Source Code"
+    assert_text "Task"
+
+    #view  other submission of unavailable problem
+    visit submission_path( submissions(:sub1_by_james) )
+    assert_text "Source Code"
+    assert_text "Task"
+  end
+
+  test "user view submissions" do
+    login('john','hello')
+
+    #view own submission
+    within 'header' do
+      click_on 'Submission'
+      click_on 'View'
+    end
+    click_on 'Go'
+
+    #click the first <a> item in the table
+    first('table a').click
+    assert_text "Source Code"
+    assert_text "Task"
+
+    #view other submission of available problem
+    GraderConfiguration.where(key: 'right.user_view_submission').update(value: 'true')
+
+    #using direct link
+    visit submission_path( submissions(:add1_by_james) )
+    assert_text "Source Code"
+    assert_text "Task"
+
+    #view admin's submission of available problem
+    #using direct link
+    visit submission_path( submissions(:add1_by_admin) )
+    assert_text "Source Code"
+    assert_text "Task"
+
+    #view  other submission of unavailable problem
+    visit submission_path( submissions(:sub1_by_james) )
+    assert_text "You are not authorized"
+
+    #view  admin's submission of unavailable problem
+    login('john','hello')
+    visit submission_path( submissions(:sub1_by_admin) )
+    assert_text "You are not authorized"
+
+    #view other submission of available problem, right not allow
+    GraderConfiguration.where(key: 'right.user_view_submission').update(value: 'false')
+    login('john','hello')
+    visit submission_path( submissions(:add1_by_james) )
+    assert_text "You are not authorized"
+  end
 
   def login(username,password)
     visit root_path