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87 lines
2.2 KiB
Crystal
87 lines
2.2 KiB
Crystal
require "../../spec_helper"
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# Examples taken from:
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# https://relishapp.com/rspec/rspec-expectations/v/3-8/docs/built-in-matchers/predicate-matchers
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# and modified to fit Spectator and Crystal.
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Spectator.describe "Predicate matchers" do
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context "should be_zero (based on Int#zero?)" do
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describe 0 do
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it { is_expected.to be_zero }
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end
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describe 7 do
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# deliberate failure
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# TODO: Add support for expected failures.
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xit { is_expected.to be_zero }
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end
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end
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context "should_not be_empty (based on Array#empty?)" do
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describe [1, 2, 3] do
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it { is_expected.not_to be_empty }
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end
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describe [] of Int32 do
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# deliberate failure
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# TODO: Add support for expected failures.
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xit { is_expected.not_to be_empty }
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end
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end
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context "should have_key (based on Hash#has_key?)" do
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describe Hash do
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subject { {:foo => 7} }
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it { is_expected.to have_key(:foo) }
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# deliberate failure
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# TODO: Add support for expected failures.
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xit { is_expected.to have_key(:bar) }
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end
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end
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context "should_not have_all_string_keys (based on custom #has_all_string_keys? method)" do
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class ::Hash(K, V)
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def has_all_string_keys?
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keys.all? { |k| String === k }
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end
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end
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describe Hash do
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context "with symbol keys" do
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subject { {:foo => 7, :bar => 5} }
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it { is_expected.not_to have_all_string_keys }
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end
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context "with string keys" do
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subject { {"foo" => 7, "bar" => 5} }
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# deliberate failure
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# TODO: Add support for expected failures.
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xit { is_expected.not_to have_all_string_keys }
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end
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end
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end
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context "matcher arguments are passed on to the predicate method" do
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struct ::Int
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def multiple_of?(x)
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(self % x).zero?
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end
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end
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describe 12 do
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it { is_expected.to be_multiple_of(3) }
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it { is_expected.not_to be_multiple_of(7) }
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# deliberate failures
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# TODO: Add support for expected failures.
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xit { is_expected.not_to be_multiple_of(4) }
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xit { is_expected.to be_multiple_of(5) }
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end
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end
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# The examples using private methods cause a compilation error in Crystal, and can't be used here.
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end
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