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Add test for Cog::Registry #765

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Merged
dersam merged 1 commit into from
Jan 30, 2026
Merged

Add test for Cog::Registry #765

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73 changes: 73 additions & 0 deletions test/roast/cog/registry_test.rb
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# frozen_string_literal: true

require "test_helper"

module Roast
class Cog
class RegistryTest < ActiveSupport::TestCase
def setup
@registry = Registry.new
end

test "initialize registers system cogs" do
assert @registry.cogs.key?(:call)
assert @registry.cogs.key?(:map)
assert @registry.cogs.key?(:repeat)
end

test "initialize registers standard cogs" do
assert @registry.cogs.key?(:cmd)
assert @registry.cogs.key?(:chat)
assert @registry.cogs.key?(:agent)
assert @registry.cogs.key?(:ruby)
end

test "use registers a cog class by derived name" do
custom_cog = Class.new(Cog)
# Give it a name by assigning to a constant
self.class.const_set(:CustomTestCog, custom_cog)

@registry.use(self.class::CustomTestCog)

assert @registry.cogs.key?(:custom_test_cog)
assert_equal self.class::CustomTestCog, @registry.cogs[:custom_test_cog]
ensure
self.class.send(:remove_const, :CustomTestCog) if self.class.const_defined?(:CustomTestCog)
end

test "use overwrites existing cog with same name" do
first_cog = Class.new(Cog)
second_cog = Class.new(Cog)
self.class.const_set(:OverwriteCog, first_cog)

@registry.use(self.class::OverwriteCog)
assert_equal first_cog, @registry.cogs[:overwrite_cog]

# Reassign constant to second cog class
self.class.send(:remove_const, :OverwriteCog)
self.class.const_set(:OverwriteCog, second_cog)

@registry.use(self.class::OverwriteCog)
assert_equal second_cog, @registry.cogs[:overwrite_cog]
ensure
self.class.send(:remove_const, :OverwriteCog) if self.class.const_defined?(:OverwriteCog)
end

test "use raises CouldNotDeriveCogNameError for anonymous class" do
anonymous_cog = Class.new(Cog)

assert_raises(Registry::CouldNotDeriveCogNameError) do
@registry.use(anonymous_cog)
end
end

test "use derives name from demodulized underscored class name" do
# The standard cogs demonstrate this:
# Roast::Cogs::Agent -> :agent
# Roast::Cogs::Cmd -> :cmd
assert_equal Cogs::Agent, @registry.cogs[:agent]
assert_equal Cogs::Cmd, @registry.cogs[:cmd]
end
end
end
end