X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/2d4263c16812a906589cbc13be26535a85691bd8..27ffca811e6f43225fc82d582d1962eebbd1ab6e:/services/api/test/unit/link_test.rb

diff --git a/services/api/test/unit/link_test.rb b/services/api/test/unit/link_test.rb
index 944bfced3d..10f2b5eca5 100644
--- a/services/api/test/unit/link_test.rb
+++ b/services/api/test/unit/link_test.rb
@@ -1,7 +1,60 @@
 require 'test_helper'
 
 class LinkTest < ActiveSupport::TestCase
-  # test "the truth" do
-  #   assert true
-  # end
+  fixtures :all
+
+  setup do
+    set_user_from_auth :admin_trustedclient
+  end
+
+  test 'name links with the same tail_uuid must be unique' do
+    a = Link.create!(tail_uuid: groups(:afolder).uuid,
+                     head_uuid: specimens(:owned_by_active_user).uuid,
+                     link_class: 'name',
+                     name: 'foo')
+    assert a.valid?, a.errors.to_s
+    assert_raises ActiveRecord::RecordNotUnique do
+      b = Link.create!(tail_uuid: groups(:afolder).uuid,
+                       head_uuid: specimens(:owned_by_active_user).uuid,
+                       link_class: 'name',
+                       name: 'foo')
+    end
+  end
+
+  test 'name links with different tail_uuid need not be unique' do
+    a = Link.create!(tail_uuid: groups(:afolder).uuid,
+                     head_uuid: specimens(:owned_by_active_user).uuid,
+                     link_class: 'name',
+                     name: 'foo')
+    assert a.valid?, a.errors.to_s
+    b = Link.create!(tail_uuid: groups(:asubfolder).uuid,
+                     head_uuid: specimens(:owned_by_active_user).uuid,
+                     link_class: 'name',
+                     name: 'foo')
+    assert b.valid?, b.errors.to_s
+    assert_not_equal(a.uuid, b.uuid,
+                     "created two links and got the same uuid back.")
+  end
+
+  [nil, '', false].each do |name|
+    test "name links cannot have name=#{name.inspect}" do
+      a = Link.create(tail_uuid: groups(:afolder).uuid,
+                      head_uuid: specimens(:owned_by_active_user).uuid,
+                      link_class: 'name',
+                      name: name)
+      assert a.invalid?, "invalid name was accepted as valid?"
+    end
+  end
+
+  test "cannot delete an object referenced by links" do
+    ob = Specimen.create
+    link = Link.create(tail_uuid: users(:active).uuid,
+                       head_uuid: ob.uuid,
+                       link_class: 'test',
+                       name: 'test')
+    assert_raises(ActiveRecord::DeleteRestrictionError,
+                  "should not delete #{ob.uuid} with link #{link.uuid}") do
+      ob.destroy
+    end
+  end
 end