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Add spec for ExceptionMatcher
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Michael Miller
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commit
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3 changed files with 210 additions and 1 deletions
205
spec/matchers/exception_matcher_spec.cr
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205
spec/matchers/exception_matcher_spec.cr
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require "../spec_helper"
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describe Spectator::Matchers::ExceptionMatcher do
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describe "#match" do
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it "compares the message using #===" do
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spy = SpySUT.new
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, SpySUT).new(spy, "foo")
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matcher.match(partial)
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spy.case_eq_call_count.should be > 0
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end
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context "returned MatchData" do
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describe "#matched?" do
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context "with no exception" do
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it "is false" do
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partial = new_block_partial { 42 }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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context "with an exception" do
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context "of the same type" do
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it "is true" do
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partial = new_block_partial { raise ArgumentError.new }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, Nil).new
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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context "of a different type" do
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it "is false" do
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partial = new_block_partial { raise ArgumentError.new }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Nil).new
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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context "of a sub-type" do
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it "is true" do
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partial = new_block_partial { raise ArgumentError.new }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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context "and an equal message" do
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it "is true" do
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message = "foobar"
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partial = new_block_partial { raise ArgumentError.new(message) }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, String).new(message, "label")
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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context "and a different message" do
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it "is false" do
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partial = new_block_partial { raise ArgumentError.new("foobar") }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, String).new("different", "label")
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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context "and a matching regex" do
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it "is true" do
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partial = new_block_partial { raise ArgumentError.new("foobar") }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, Regex).new(/foo/, "label")
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match_data = matcher.match(partial)
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match_data.matched?.should be_true
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end
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end
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context "and a non-matching regex" do
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it "is false" do
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partial = new_block_partial { raise ArgumentError.new("foobar") }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, Regex).new(/baz/, "label")
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match_data = matcher.match(partial)
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match_data.matched?.should be_false
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end
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end
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end
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end
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describe "#values" do
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describe "expected type" do
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it "is the exception type" do
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partial = new_block_partial { raise ArgumentError.new }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Nil).new
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match_data = matcher.match(partial)
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match_data_prefix(match_data, :"expected type")[:value].should eq(KeyError)
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end
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end
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describe "actual type" do
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it "is the raised type" do
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partial = new_block_partial { raise ArgumentError.new }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Nil).new
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match_data = matcher.match(partial)
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match_data_prefix(match_data, :"actual type")[:value].should eq(ArgumentError)
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end
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context "when nothing is raised" do
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it "is Nil" do
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partial = new_block_partial { 42 }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Nil).new
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match_data = matcher.match(partial)
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match_data_prefix(match_data, :"actual type")[:value].should eq(Nil)
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end
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end
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end
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describe "expected message" do
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it "is the expected value" do
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regex = /baz/
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partial = new_block_partial { raise ArgumentError.new("foobar") }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Regex).new(regex, "label")
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match_data = matcher.match(partial)
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match_data_prefix(match_data, :"expected message")[:value].should eq(regex)
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end
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end
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describe "actual message" do
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it "is the raised exception's message" do
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message = "foobar"
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partial = new_block_partial { raise ArgumentError.new(message) }
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matcher = Spectator::Matchers::ExceptionMatcher(KeyError, Regex).new(/baz/, "label")
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match_data = matcher.match(partial)
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match_data_prefix(match_data, :"actual message")[:value].should eq(message)
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end
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end
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end
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describe "#message" do
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it "mentions raise" do
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.message.should contain("raise")
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end
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it "contains the actual label" do
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label = "everything"
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partial = new_block_partial(label) { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the expected label" do
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label = "everything"
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Regex).new(/foobar/, label)
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match_data = matcher.match(partial)
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match_data.message.should contain(label)
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end
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it "contains the exception type" do
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, Nil).new
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match_data = matcher.match(partial)
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match_data.message.should contain("ArgumentError")
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end
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end
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describe "#negated_message" do
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it "mentions raise" do
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.negated_message.should contain("raise")
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end
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it "contains the actual label" do
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label = "everything"
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partial = new_block_partial(label) { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Nil).new
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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it "contains the expected label" do
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label = "everything"
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(Exception, Regex).new(/foobar/, label)
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match_data = matcher.match(partial)
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match_data.negated_message.should contain(label)
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end
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it "contains the exception type" do
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partial = new_block_partial { raise "foobar" }
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matcher = Spectator::Matchers::ExceptionMatcher(ArgumentError, Nil).new
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match_data = matcher.match(partial)
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match_data.negated_message.should contain("ArgumentError")
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end
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end
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end
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end
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end
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