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require 'helper'
class TestHashRenderer < MINITEST_TEST_CLASS
describe 'hash renderer' do
def render(locals = nil)
RablRails::Renderers::Hash.render(@template, @context, locals)
end
def with_cache
ActionController::Base.stub :perform_caching, true do
Rails.stub :cache, @cache do
yield
end
end
end
before do
@cache = MiniTest::Mock.new
@resource = User.new(1, 'Marty')
@context = Context.new
@context.assigns['user'] = @resource
@template = RablRails::CompiledTemplate.new
@template.data = :@user
@template.add_node RablRails::Nodes::Attribute.new(name: :name)
end
describe 'cache' do
it 'uses resource cache_key by default' do
def @resource.cache_key; 'marty_cache' end
@template.cache_key = nil
@cache.expect :fetch, { user: 'Marty' }, ['marty_cache']
with_cache {
assert_equal({ user: 'Marty' }, render)
}
@cache.verify
end
it 'uses template cache_key if present' do
@template.cache_key = ->(u) { u.name }
@cache.expect :fetch, { user: 'Marty' }, ['Marty']
with_cache {
assert_equal({ user: 'Marty' }, render)
}
@cache.verify
end
end
it 'uses a to_hash visitor' do
visitor = MiniTest::Mock.new
visitor.expect :instance_variable_get, @resource, [:@user]
visitor.expect :reset_for, nil, [@resource]
visitor.expect :visit, nil, [Array]
visitor.expect :result, { some: 'result' }
Visitors::ToHash.stub :new, visitor do
assert_equal({ some: 'result' }, render)
end
visitor.verify
end
it 'retrieves data from context if exist' do
@template.data = :context_method
resource = User.new(2, 'Biff')
@context.stub :context_method, resource do
assert_equal({ name: 'Biff' }, render)
end
end
it 'uses assigns from context if context has no data method' do
assert_equal({ name: 'Marty' }, render)
end
it "uses resource passed in locals if template don't have data" do
@template.data = nil
resource = User.new(2, 'Biff')
assert_equal({ name: 'Biff' }, render(resource: resource))
end
it 'uses template root_name option' do
@template.root_name = :user
assert_equal({ user: { name: 'Marty' } }, render)
end
it 'renders collection' do
@context.assigns['user'] = [@resource]
assert_equal([{ name: 'Marty' }], render)
end
end
end
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