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Capture and report arguments in exception message

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Michael Miller 2022-03-05 16:06:01 -07:00
parent 75ccda0a86
commit 13f185b801
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2 changed files with 27 additions and 13 deletions
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26
src/spectator/mocks/double.cr
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@ -52,18 +52,23 @@ module Spectator
{% for meth in type.methods %}
{% if !meth.abstract? && !DSL::RESERVED_KEYWORDS.includes?(meth.name.symbolize) %}
{% if meth.visibility != :public %}{{meth.visibility.id}}{% end %} def {{meth.receiver}}{{meth.name}}(
{{meth.args.splat}}{% if !meth.args.empty? %}, {% end %}
{{meth.args.splat(",")}}
{% if meth.double_splat %}**{{meth.double_splat}}, {% end %}
{% if meth.block_arg %}&{{meth.block_arg}}{% elsif meth.accepts_block? %}&{% end %}
){% if meth.return_type %} : {{meth.return_type}}{% end %}{% if !meth.free_vars.empty? %} forall {{meth.free_vars.splat}}{% end %}
# Capture call information.
arguments = Arguments.capture(
{{meth.args.map(&.internal_name).splat}}{% if !meth.args.empty? %}, {% end %}
{% if meth.double_splat %}**{{meth.double_splat}}, {% end %}
)
call = MethodCall.new({{meth.name.symbolize}}, arguments)
\{% if type = NT[{{meth.name.symbolize}}] %}
{% if meth.return_type %}
\{% if type <= {{meth.return_type}} %}
# Return type appears to match configured type.
# Respond with configured value.
# Find a suitable response.
call = MethodCall.capture({{meth.name.symbolize}}, {{meth.args.map(&.internal_name).splat}})
response = @responses.find &.===(call)
if response
@ -71,7 +76,7 @@ module Spectator
response.as(Response(\{{type}})).value
else
# Response not configured for this method/message.
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with (<TODO: ARGS>).")
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with #{arguments}")
end
\{% else %}
# Return type doesn't match configured type.
@ -83,7 +88,6 @@ module Spectator
# No return type restriction, return configured response.
# Find a suitable response.
call = MethodCall.capture({{meth.name.symbolize}}, {{meth.args.map(&.internal_name).splat}})
response = @responses.find &.===(call)
if response
@ -91,12 +95,12 @@ module Spectator
response.as(Response(\{{type}})).value
else
# Response not configured for this method/message.
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with (<TODO: ARGS>).")
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with #{arguments}")
end
{% end %}
\{% else %}
# Response not configured for this method/message.
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with (<TODO: ARGS>).")
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{meth.name}} (masking ancestor) with #{arguments}")
\{% end %}
end
{% end %}
@ -111,9 +115,11 @@ module Spectator
# Handle all methods but only respond to configured messages.
# Raises an `UnexpectedMessage` error for non-configures messages.
macro method_missing(call)
arguments = Arguments.capture({{call.args.splat(", ")}}{% if call.named_args %}{{call.named_args.splat}}{% end %})
call = MethodCall.new({{call.name.symbolize}}, arguments)
\{% if type = NT[{{call.name.symbolize}}] %}
# Find a suitable response.
call = MethodCall.capture({{call.name.symbolize}}, {{call.args.splat}})
response = @responses.find &.===(call)
if response
@ -121,11 +127,11 @@ module Spectator
response.as(Response(\{{type}})).value
else
# Response not configured for this method/message.
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{call.name}} with (<TODO: ARGS>).")
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{call.name}} with #{arguments}")
end
\{% else %}
# Response not configured for this method/message.
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{call.name}} with (<TODO: ARGS>).")
raise UnexpectedMessage.new("#{_spectator_double_name} received unexpected message :{{call.name}} with #{arguments}")
\{% end %}
end
end