Implement Context#match_exclustion?

Author: hoppergee

lib/matrixeval/ruby/context.rb

@@ -51,6 +51,19 @@ def variants
         [main_variant] + rest_variants
       end
 
+      def match_exclusion?(exclusion)
+        return false if exclusion.empty?
+
+        variants.all? do |variant|
+          vector_key = variant.vector.key
+          if exclusion.key?(vector_key)
+            exclusion[vector_key] == variant.key
+          else
+            true
+          end
+        end
+      end
+
     end
   end
 end

test/matrixeval/ruby/context_test.rb

@@ -74,6 +74,15 @@ def test_variants
     assert_equal "5.0", @context.variants[2].key
   end
 
+  def test_match_exclusion
+    assert @context.match_exclusion?({ "ruby" => "3.0", "rails" => "6.1" })
+    assert @context.match_exclusion?({ "ruby" => "3.0", "rails" => "6.1", "sidekiq" => "5.0" })
+    assert @context.match_exclusion?({ "rails" => "6.1", "sidekiq" => "5.0" })
+    refute @context.match_exclusion?({ "ruby" => "2.7", "rails" => "6.1" })
+    refute @context.match_exclusion?({ "sidekiq" => "6.0"})
+    refute @context.match_exclusion?({})
+  end
+
   def test_all
     Matrixeval::Ruby::Config.stubs(:variant_combinations).returns([
       [