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51 lines
1.5 KiB
Crystal
51 lines
1.5 KiB
Crystal
require "../../../spec_helper"
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module Ameba::Rule::Lint
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describe HashDuplicatedKey do
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subject = HashDuplicatedKey.new
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it "passes if there is no duplicated keys in a hash literals" do
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s = Source.new %(
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h = {"a" => 1, :a => 2, "b" => 3}
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h = {"a" => 1, "b" => 2, "c" => {"a" => 3, "b" => 4}}
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h = {} of String => String
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)
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subject.catch(s).should be_valid
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end
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it "fails if there is a duplicated key in a hash literal" do
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s = Source.new %q(
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h = {"a" => 1, "b" => 2, "a" => 3}
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)
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subject.catch(s).should_not be_valid
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end
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it "fails if there is a duplicated key in the inner hash literal" do
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s = Source.new %q(
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h = {"a" => 1, "b" => {"a" => 3, "b" => 4, "a" => 5}}
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)
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subject.catch(s).should_not be_valid
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end
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it "reports rule, location and message" do
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s = Source.new %q(
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h = {"a" => 1, "a" => 2}
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), "source.cr"
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subject.catch(s).should_not be_valid
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issue = s.issues.first
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issue.rule.should_not be_nil
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issue.location.to_s.should eq "source.cr:1:5"
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issue.end_location.to_s.should eq "source.cr:1:24"
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issue.message.should eq %(Duplicated keys in hash literal: "a")
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end
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it "reports multiple duplicated keys" do
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s = Source.new %q(
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h = {"key1" => 1, "key1" => 2, "key2" => 3, "key2" => 4}
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)
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subject.catch(s).should_not be_valid
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issue = s.issues.first
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issue.message.should eq %(Duplicated keys in hash literal: "key1", "key2")
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end
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end
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end
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