Refactor HaveMatcher

This commit is contained in:
Michael Miller 2019-08-08 15:26:30 -06:00
parent f1ebce7739
commit 17aa472d92

View file

@ -5,67 +5,51 @@ module Spectator::Matchers
# For a `String`, the `includes?` method is used.
# Otherwise, it expects an `Enumerable` and iterates over each item until === is true.
struct HaveMatcher(ExpectedType) < ValueMatcher(ExpectedType)
# Determines whether the matcher is satisfied with the value given to it.
# True is returned if the match was successful, false otherwise.
private def match?(actual)
if actual.is_a?(String)
match_string?(actual)
actual_value = actual.value
if actual_value.is_a?(String)
match_string(actual_value)
else
match_enumerable?(actual)
match_enumerable(actual_value)
end
end
# Checks if a `String` matches the expected values.
# The `includes?` method is used for this check.
private def match_string?(actual)
expected.all? do |item|
actual.includes?(item)
private def match_string?(actual_value)
expected.value.all? do |item|
actual_value.includes?(item)
end
end
# Checks if an `Enumerable` matches the expected values.
# The `===` operator is used on every item.
private def match_enumerable?(actual)
array = actual.to_a
expected.all? do |item|
array.any? do |elem|
item === elem
private def match_enumerable?(actual_value)
array = actual_value.to_a
expected.value.all? do |item|
array.any? do |element|
item === element
end
end
end
# Determines whether the matcher is satisfied with the partial given to it.
def match(partial, negated = false)
values = ExpectedActual.new(partial, self)
MatchData.new(match?(values.actual), values)
def description
"includes #{expected.label}"
end
# Match data specific to this matcher.
private struct MatchData(ExpectedType, ActualType) < MatchData
# Creates the match data.
def initialize(matched, @values : ExpectedActual(ExpectedType, ActualType))
super(matched)
end
private def failure_message(actual)
"#{actual.label} does not include #{expected.label}"
end
# Information about the match.
def named_tuple
{
subset: NegatableMatchDataValue.new(@values.expected),
superset: @values.actual,
}
end
private def failure_message_when_negated(actual)
"#{actual.label} includes #{expected.label}"
end
# Describes the condition that satisfies the matcher.
# This is informational and displayed to the end-user.
def message
"#{@values.actual_label} includes #{@values.expected_label}"
end
# Describes the condition that won't satsify the matcher.
# This is informational and displayed to the end-user.
def negated_message
"#{@values.actual_label} does not include #{@values.expected_label}"
end
private def values(actual)
{
subset: expected.value.inspect,
superset: actual.value.inspect,
}
end
end
end