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# frozen_string_literal: true
require_relative '../lib/felecs'
# class EntitiesTest < Minitest::Test
describe 'Entities' do
before :all do
$VERBOSE = nil
@component_manager ||= FelECS::Components.new('TestEntity', :param1, param2: 'def')
end
before :each do
@orig_stderr = $stderr
$stderr = StringIO.new
@ent0 = FelECS::Entities.new
@ent1 = FelECS::Entities.new
@ent2 = FelECS::Entities.new
@cmp0 = @component_manager.new
@cmp1 = @component_manager.new
@cmp2 = @component_manager.new
end
after :each do
$stderr = @orig_stderr
FelECS::Entities.reverse_each(&:delete)
@component_manager.reverse_each(&:delete)
end
it 'can get a single component' do
expect { @ent0.component[@component_manager] }.to raise_error(RuntimeError)
@ent0.add @cmp0
expect(@ent0.component[@component_manager]).to eq(@cmp0)
expect(@ent0.component[@component_manager]).to eq(@ent0.component(@component_manager))
@ent0.add @cmp1
@ent0.component[@component_manager]
$stderr.rewind
$stderr.string.chomp.should eq("This entity has MANY of this component but you called the method that is intended for having a single of this component type.\nYou may have a bug in your logic.")
@ent0.components[@component_manager].reverse_each do |component|
@ent0.remove component
end
expect { @ent0.component[@component_manager] }.to raise_error(RuntimeError)
end
it 'responds to array methods' do
expect(FelECS::Entities.respond_to?(:[])).to be true
expect(FelECS::Entities.respond_to?(:each)).to be true
FelECS::Entities.each do |entity|
expect(entity.respond_to?(:components)).to be true
end
expect(FelECS::Entities.respond_to?(:filter)).to be true
expect(FelECS::Entities.respond_to?(:first)).to be true
expect(FelECS::Entities.respond_to?(:last)).to be true
expect(FelECS::Entities.respond_to?(:somethingwrong)).to be false
end
it 'dont respond to missing methods' do
expect { FelECS::Entities.somethingwrong }.to raise_error(NoMethodError)
end
it 'won\'t add duplicate entities' do
@ent0.add @cmp0, @cmp0, @cmp1, @cmp1
expect(@ent0.components[@component_manager].count).to eq(2)
end
it 'can be accessed' do
expect(FelECS::Entities[0].respond_to?(:components)).to eq(true)
expect(FelECS::Entities[1].respond_to?(:components)).to eq(true)
expect(FelECS::Entities[2].respond_to?(:components)).to eq(true)
end
it 'can have components attached' do
@ent0.add @cmp0
expect(@ent0.component[@component_manager]).to eq(@cmp0)
@ent1.add @cmp1, @cmp2
expect(@ent1.components[@component_manager].length).to eq(2)
expect(@ent1.components[@component_manager].include?(@cmp1)).to be true
expect(@ent1.components[@component_manager].include?(@cmp2)).to be true
end
it 'can have components removed' do
@ent0.add @cmp0
expect(@ent0.remove(@cmp0)).to be true
expect(@cmp0.entities.empty?).to be true
expect(@ent0.components[@component_manager].nil?).to be true
@ent0.add @cmp0
@cmp0.delete
expect(@ent0.components[@component_manager].nil?).to be true
end
it 'can have many components added then removed' do
@ent0.add @cmp0, @cmp1, @cmp2
@ent1.add @cmp0, @cmp1
@ent2.add @cmp1, @cmp2
expect(@ent0.components).to eq({ @component_manager => [@cmp0, @cmp1, @cmp2] })
expect(@cmp0.entities).to eq([@ent0, @ent1])
expect(@cmp1.entities).to eq([@ent0, @ent1, @ent2])
expect(@cmp2.entities).to eq([@ent0, @ent2])
@ent1.delete
expect(@cmp0.entities).to eq([@ent0])
expect(@cmp1.entities).to eq([@ent0, @ent2])
expect(@cmp2.entities).to eq([@ent0, @ent2])
@cmp1.delete
expect(@ent0.components).to eq({ @component_manager => [@cmp0, @cmp2] })
@component_manager.reverse_each(&:delete)
expect(@component_manager.length).to eq(0)
expect(@component_manager.empty?).to be true
expect(@ent0.components).to eq({})
expect(@ent2.components).to eq({})
FelECS::Entities.reverse_each(&:delete)
expect(FelECS::Entities.empty?).to be true
end
end
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