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59 lines
1.6 KiB
Crystal
59 lines
1.6 KiB
Crystal
require "../../../spec_helper"
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module Ameba::Rule::Performance
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subject = AnyInsteadOfEmpty.new
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describe AnyInsteadOfEmpty do
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it "passes if there is no potential performance improvements" do
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expect_no_issues subject, <<-CRYSTAL
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[1, 2, 3].any?(&.zero?)
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[1, 2, 3].any?(String)
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[1, 2, 3].any?(1..3)
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[1, 2, 3].any? { |e| e > 1 }
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CRYSTAL
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end
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it "reports if there is any? call without a block nor argument" do
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source = expect_issue subject, <<-CRYSTAL
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[1, 2, 3].any?
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# ^^^^^^^^^^^^ error: Use `!{...}.empty?` instead of `{...}.any?`
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CRYSTAL
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expect_correction source, <<-CRYSTAL
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![1, 2, 3].empty?
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CRYSTAL
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end
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it "does not report if source is a spec" do
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expect_no_issues subject, <<-CRYSTAL, "source_spec.cr"
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[1, 2, 3].any?
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CRYSTAL
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end
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context "macro" do
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it "reports in macro scope" do
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source = expect_issue subject, <<-CRYSTAL
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{{ [1, 2, 3].any? }}
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# ^^^^^^^^^^^^^^ error: Use `!{...}.empty?` instead of `{...}.any?`
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CRYSTAL
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expect_correction source, <<-CRYSTAL
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{{ ![1, 2, 3].empty? }}
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CRYSTAL
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end
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end
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it "reports rule, pos and message" do
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source = Source.new path: "source.cr", code: %(
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[1, 2, 3].any?
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)
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subject.catch(source).should_not be_valid
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issue = source.issues.first
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issue.rule.should_not be_nil
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issue.location.to_s.should eq "source.cr:1:1"
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issue.end_location.to_s.should eq "source.cr:1:14"
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issue.message.should eq "Use `!{...}.empty?` instead of `{...}.any?`"
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end
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end
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end
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