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cee-dub/named_scope_subset_helper.rb

Forked from zbrock/gist:615961
Created October 13, 2010 06:47
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Revisions

  1. cee-dub revised this gist Oct 19, 2010. 1 changed file with 8 additions and 10 deletions.
    18 changes: 8 additions & 10 deletions named_scope_subset_helper.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -1,12 +1,10 @@
    def should_be_a_subset(all_objects, constrained_scope, &condition)
    flunk "Your superset is empty" if all_objects.empty?
    flunk "Your constrained set is empty" if constrained_scope.empty?
    def should_be_a_subset(superset, records_selected_by_scope, &condition)
    flunk "Your superset is empty" if superset.empty?
    flunk "Your scope did not select any records" if records_selected_by_scope.empty?

    selected_objects, excluded_objects = all_objects.partition(&condition)
    flunk "Your test condition did not select any items" if selected_objects.empty?
    flunk "Your test condition did not exclude any items" if excluded_objects.empty?
    records_selected_by_block, records_excluded_by_block = superset.partition(&condition)
    flunk "Your test condition did not select any records" if records_selected_by_block.empty?
    flunk "Your test condition did not exclude any records" if records_excluded_by_block.empty?

    constrained_scope.map(&:id).sort.should == selected_objects.map(&:id).sort

    (all_objects.map(&:id) - constrained_scope.map(&:id)).sort.should == excluded_objects.map(&:id).sort
    end
    records_selected_by_scope.map(&:id).should =~ records_selected_by_block.map(&:id)
    end
  2. cee-dub revised this gist Oct 13, 2010. 1 changed file with 5 additions and 5 deletions.
    10 changes: 5 additions & 5 deletions named_scope_subset_helper.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -2,11 +2,11 @@ def should_be_a_subset(all_objects, constrained_scope, &condition)
    flunk "Your superset is empty" if all_objects.empty?
    flunk "Your constrained set is empty" if constrained_scope.empty?

    objects_for_which_condition_is_true, objects_for_which_condition_is_false = all_objects.partition(&condition)
    flunk "Your test condition did not select any items" if objects_for_which_condition_is_true.empty?
    flunk "Your test condition did not exclude any items" if objects_for_which_condition_is_false.empty?
    selected_objects, excluded_objects = all_objects.partition(&condition)
    flunk "Your test condition did not select any items" if selected_objects.empty?
    flunk "Your test condition did not exclude any items" if excluded_objects.empty?

    constrained_scope.map(&:id).sort.should == objects_for_which_condition_is_true.map(&:id).sort
    constrained_scope.map(&:id).sort.should == selected_objects.map(&:id).sort

    (all_objects.map(&:id) - constrained_scope.map(&:id)).sort.should == objects_for_which_condition_is_false.map(&:id).sort
    (all_objects.map(&:id) - constrained_scope.map(&:id)).sort.should == excluded_objects.map(&:id).sort
    end
  3. cee-dub revised this gist Oct 13, 2010. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion named_scope_subset_helper.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -8,5 +8,5 @@ def should_be_a_subset(all_objects, constrained_scope, &condition)

    constrained_scope.map(&:id).sort.should == objects_for_which_condition_is_true.map(&:id).sort

    (all_objects.map(&:id) - constrained_scope.map(&:id)).should == objects_for_which_condition_is_false.map(&:id)
    (all_objects.map(&:id) - constrained_scope.map(&:id)).sort.should == objects_for_which_condition_is_false.map(&:id).sort
    end
  4. cee-dub renamed this gist Oct 13, 2010. 1 changed file with 2 additions and 2 deletions.
    4 changes: 2 additions & 2 deletions gistfile1.rb → named_scope_subset_helper.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -3,8 +3,8 @@ def should_be_a_subset(all_objects, constrained_scope, &condition)
    flunk "Your constrained set is empty" if constrained_scope.empty?

    objects_for_which_condition_is_true, objects_for_which_condition_is_false = all_objects.partition(&condition)
    objects_for_which_condition_is_true.should_not be_empty
    objects_for_which_condition_is_false.should_not be_empty
    flunk "Your test condition did not select any items" if objects_for_which_condition_is_true.empty?
    flunk "Your test condition did not exclude any items" if objects_for_which_condition_is_false.empty?

    constrained_scope.map(&:id).sort.should == objects_for_which_condition_is_true.map(&:id).sort

  5. @zbrock zbrock revised this gist Oct 7, 2010. 1 changed file with 0 additions and 1 deletion.
    1 change: 0 additions & 1 deletion gistfile1.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -9,5 +9,4 @@ def should_be_a_subset(all_objects, constrained_scope, &condition)
    constrained_scope.map(&:id).sort.should == objects_for_which_condition_is_true.map(&:id).sort

    (all_objects.map(&:id) - constrained_scope.map(&:id)).should == objects_for_which_condition_is_false.map(&:id)
    (all_objects - constrained_scope).should == objects_for_which_condition_is_false
    end
  6. @zbrock zbrock created this gist Oct 7, 2010.
    13 changes: 13 additions & 0 deletions gistfile1.rb
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,13 @@
    def should_be_a_subset(all_objects, constrained_scope, &condition)
    flunk "Your superset is empty" if all_objects.empty?
    flunk "Your constrained set is empty" if constrained_scope.empty?

    objects_for_which_condition_is_true, objects_for_which_condition_is_false = all_objects.partition(&condition)
    objects_for_which_condition_is_true.should_not be_empty
    objects_for_which_condition_is_false.should_not be_empty

    constrained_scope.map(&:id).sort.should == objects_for_which_condition_is_true.map(&:id).sort

    (all_objects.map(&:id) - constrained_scope.map(&:id)).should == objects_for_which_condition_is_false.map(&:id)
    (all_objects - constrained_scope).should == objects_for_which_condition_is_false
    end