test: got 100% coverage (branch and line)

test/kalshi/client_test.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require_relative '../helper'
+
+describe Rubyists::Kalshi::Client do
+  let(:base_url) { Rubyists::Kalshi.config.base_url }
+
+  describe '#get' do
+    it 'raises Error on API error' do
+      stub_request(:get, "#{base_url}/error")
+        .to_return(status: 400, body: 'Bad Request')
+
+      client = Rubyists::Kalshi::Client.new
+      error = assert_raises(Rubyists::Kalshi::Error) do
+        client.get('error')
+      end
+      assert_match(/API Error: 400 - Bad Request/, error.message)
+    end
+  end
+end
+
+describe Rubyists::Kalshi do
+  describe '.client' do
+    it 'returns a client instance' do
+      assert_instance_of Rubyists::Kalshi::Client, Rubyists::Kalshi.client
+    end
+
+    it 'returns the same instance' do
+      assert_same Rubyists::Kalshi.client, Rubyists::Kalshi.client
+    end
+  end
+end

test/kalshi/contract_test.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+require_relative '../helper'
+
+describe Rubyists::Kalshi::Contract do
+  # rubocop:disable Lint/ConstantDefinitionInBlock
+  class TestContract < Rubyists::Kalshi::Contract
+    property :existing_prop
+    propertize :new_prop
+  end
+  # rubocop:enable Lint/ConstantDefinitionInBlock
+
+  it 'handles existing definitions' do
+    # This test just ensures the class definition above runs and exercises the code path
+    assert_includes TestContract::Properties.members, :existing_prop
+    assert_includes TestContract::Properties.members, :new_prop
+  end
+end

test/kalshi/market/series_list_test.rb

@@ -27,12 +27,18 @@
       assert_equal({ series: [] }, response)
     end
 
-    it 'raises ArgumentError for invalid filters' do
+    it 'raises ArgumentError for invalid keys' do
       assert_raises(ArgumentError) do
         series_list.list(invalid_param: 'value')
       end
     end
 
+    it 'raises ArgumentError for invalid values' do
+      assert_raises(ArgumentError) do
+        series_list.list(status: 123)
+      end
+    end
+
     it 'allows calling list on the class' do
       stub_request(:get, "#{base_url}/series")
         .to_return(status: 200, body: '{"series": []}', headers: { 'Content-Type' => 'application/json' })