add Match model

main-server/spec/models/user_spec.rb

@@ -97,4 +97,33 @@ RSpec.describe User, type: :model do
       expect(user.update(nickname: "new_nickname")).to be true
     end
   end
+
+  describe "#finished_matches" do
+    let(:user) { User.create!(valid_attributes) }
+    let(:opponent) { User.create!(nickname: "opponent", password: "secret123") }
+    let(:outsider) { User.create!(nickname: "outsider", password: "secret123") }
+
+    def build_match(attrs)
+      Match.create!({
+        player1: user,
+        player2: opponent,
+        status: :ongoing,
+        game_server: "ws://game-server:8080/ws",
+        started_at: Time.current,
+        player1_rating_before: 100,
+        player2_rating_before: 100,
+        player1_rating_change: 0,
+        player2_rating_change: 0
+      }.merge(attrs))
+    end
+
+    it "returns only finished matches of the user ordered by finished_at desc" do
+      older = build_match(status: :player1_won, finished_at: 2.days.ago)
+      newer = build_match(player1: opponent, player2: user, status: :player2_won, finished_at: 1.day.ago)
+      build_match(status: :ongoing, finished_at: nil)
+      build_match(player1: opponent, player2: outsider, status: :player1_won, finished_at: Time.current)
+
+      expect(user.finished_matches.to_a).to eq([ newer, older ])
+    end
+  end
 end