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Add as_null_object method

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Michael Miller 2022-03-19 14:41:45 -06:00
parent 5d21e4bb71
commit 99aa8afdce
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2 changed files with 156 additions and 4 deletions
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17
src/spectator/dsl/mocks.cr
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@ -11,14 +11,23 @@ module Spectator::DSL
private macro def_double(name, **value_methods, &block)
{% # Construct a unique type name for the double by using the number of defined doubles.
index = ::Spectator::DSL::Mocks::DOUBLES.size
double_type_name = "Double#{index}".id.symbolize
double_type_name = "Double#{index}".id
null_double_type_name = "NullDouble#{index}".id
# Store information about how the double is defined and its context.
# This is important for constructing an instance of the double later.
::Spectator::DSL::Mocks::DOUBLES << {name.id.symbolize, @type.name(generic_args: false).symbolize, double_type_name} %}
::Spectator::DSL::Mocks::DOUBLES << {name.id.symbolize, @type.name(generic_args: false).symbolize, double_type_name.symbolize} %}
::Spectator::Double.define({{double_type_name}}, {{name}}, {{**value_methods}}) do
def as_null_object
{{null_double_type_name}}.new(@stubs)
end
{% if block %}{{block.body}}{% end %}
end
{% begin %}
::Spectator::Double.define({{double_type_name}}, {{name}}, {{**value_methods}}){% if block %} do
::Spectator::NullDouble.define({{null_double_type_name}}, {{name}}, {{**value_methods}}){% if block %} do
{{block.body}}
end{% end %}
{% end %}