Add Session model specs

app/models/session.rb

@@ -66,7 +66,7 @@ def live?
   def starting_soon?
     return false if starts_at < Time.current
 
-    (starts_at - Time.current) < 1.hour
+    (starts_at - Time.current) <= 1.hour
   end
 
   def past?

spec/models/session_spec.rb

@@ -26,6 +26,13 @@
 
 RSpec.describe Session, type: :model do
   let(:session) { build_stubbed(:session) }
+  let(:live_session) { create(:session, :live) }
+  let(:starting_soon_session) { create(:session, :starting_soon) }
+  let(:past_session) { create(:session, :past) }
+
+  before do
+    Timecop.freeze(Time.current.change(hour: 12))
+  end
 
   it "has a valid factory" do
     expect(session).to be_valid
@@ -39,4 +46,51 @@
       expect(session).not_to be_valid
     end
   end
+
+  describe "#live?" do
+    it { expect(live_session).to be_live }
+
+    context "when session has not started" do
+      it "returns false" do
+        allow(live_session).to receive_messages(starts_at: 1.hour.from_now, ends_at: 2.hours.from_now)
+        expect(live_session).not_to be_live
+      end
+    end
+
+    context "when session has already ended" do
+      it "returns false" do
+        allow(live_session).to receive_messages(starts_at: 2.hours.ago, ends_at: 1.hour.ago)
+        expect(live_session).not_to be_live
+      end
+    end
+  end
+
+  describe "#starting_soon?" do
+    it { expect(starting_soon_session).to be_starting_soon }
+
+    context "when session has already started" do
+      it "returns false" do
+        allow(starting_soon_session).to receive(:starts_at).and_return(2.hours.ago)
+        expect(starting_soon_session).not_to be_starting_soon
+      end
+    end
+
+    context "when session starts in more than an hour" do
+      it "returns false" do
+        allow(starting_soon_session).to receive(:starts_at).and_return(2.hours.from_now)
+        expect(starting_soon_session).not_to be_starting_soon
+      end
+    end
+  end
+
+  describe "#past?" do
+    it { expect(past_session).to be_past }
+
+    context "when session hasn't ended" do
+      it "returns false" do
+        allow(past_session).to receive(:ends_at).and_return(2.hours.from_now)
+        expect(past_session).not_to be_past
+      end
+    end
+  end
 end