Add NIP-01 compliant client code

spec/nostr/subscription_spec.rb

@@ -0,0 +1,81 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Nostr::Subscription do
+  let(:filter) do
+    Nostr::Filter.new(since: 1_230_981_305)
+  end
+
+  let(:subscription) do
+    described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter:)
+  end
+
+  describe '#==' do
+    context 'when both subscriptions have the same attributes' do
+      it 'returns true' do
+        subscription1 = described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter:)
+        subscription2 = described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter:)
+
+        expect(subscription1).to eq(subscription2)
+      end
+    end
+
+    context 'when both subscriptions have a different id' do
+      it 'returns false' do
+        subscription1 = described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter:)
+        subscription2 = described_class.new(id: '16605b59b539f6e86762f28fb57db2fd', filter:)
+
+        expect(subscription1).not_to eq(subscription2)
+      end
+    end
+
+    context 'when both subscriptions have a different filter' do
+      let(:other_filter) do
+        Nostr::Filter.new(since: 1_230_981_305, until: 1_292_190_341)
+      end
+
+      it 'returns false' do
+        subscription1 = described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter:)
+        subscription2 = described_class.new(id: 'c24881c305c5cfb7c1168be7e9b0e150', filter: other_filter)
+
+        expect(subscription1).not_to eq(subscription2)
+      end
+    end
+  end
+
+  describe '.new' do
+    context 'when no id is provided' do
+      it 'creates an instance of a subscription using a randomly generated id' do
+        allow(SecureRandom).to receive(:hex).and_return('a_random_string')
+
+        subscription = described_class.new(filter:)
+
+        expect(subscription.id).to eq('a_random_string')
+      end
+    end
+
+    context 'when an id is provided' do
+      it 'creates an instance of a subscription using that ID' do
+        subscription = described_class.new(
+          id: 'c24881c305c5cfb7c1168be7e9b0e150',
+          filter:
+        )
+
+        expect(subscription.id).to eq('c24881c305c5cfb7c1168be7e9b0e150')
+      end
+    end
+  end
+
+  describe '#filter' do
+    it 'exposes the subscription filter' do
+      expect(subscription.filter).to eq(filter)
+    end
+  end
+
+  describe '#id' do
+    it 'exposes the subscription id' do
+      expect(subscription.id).to eq('c24881c305c5cfb7c1168be7e9b0e150')
+    end
+  end
+end