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Negated all match is not supported

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Michael Miller 2019-08-12 14:17:04 -06:00
parent 0cb77b3355
commit 46c775932a
1 changed files with 11 additions and 3 deletions
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14
src/spectator/matchers/all_matcher.cr
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@ -29,10 +29,18 @@ module Spectator::Matchers
found ? found : SuccessfulMatchData.new
end
# Performs the test against the expression, but inverted.
# A successful match with `#match` should normally fail for this method, and vice-versa.
# Negated matching for this matcher is not supported.
# Attempting to call this method will result in a compilation error.
#
# This syntax has a logical problem.
# "All values do not satisfy some condition."
# Does this mean that all values don't satisfy the matcher?
# What if only one doesn't?
# What if the collection is empty?
#
# RSpec doesn't support this syntax either.
def negated_match(actual : TestExpression(T)) : MatchData forall T
raise NotImplementedError.new("AllMatcher#negated_match")
{% raise "The `expect { }.to_not all()` syntax is not supported (ambiguous)." %}
end
# Maps all values in the test collection to their own test values.