46 lines
1.1 KiB
Crystal
46 lines
1.1 KiB
Crystal
require "../../../spec_helper"
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module Ameba::Rule::Style
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describe IsANil do
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subject = IsANil.new
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it "doesn't report if there are no is_a?(Nil) calls" do
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s = Source.new %(
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a = 1
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a.nil?
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a.is_a?(NilLiteral)
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a.is_a?(Custom::Nil)
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)
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subject.catch(s).should be_valid
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end
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it "reports if there is a call to is_a?(Nil) without receiver" do
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s = Source.new %(
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is_a?(Nil)
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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 if there is a call to is_a?(Nil) with receiver" do
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s = Source.new %(
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a.is_a?(Nil)
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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 %(
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nil.is_a? Nil
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), "source.cr"
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subject.catch(s).should_not be_valid
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s.issues.size.should eq 1
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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:1:11"
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issue.end_location.to_s.should eq "source.cr:1:13"
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issue.message.should eq IsANil::MSG
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end
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end
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end
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