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63 lines
1.7 KiB
Crystal
63 lines
1.7 KiB
Crystal
require "../../../spec_helper"
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module Ameba::Rule::Lint
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subject = LiteralsComparison.new
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describe LiteralsComparison do
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it "passes for valid cases" do
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expect_no_issues subject, <<-CRYSTAL
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"foo" == foo
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"foo" != foo
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foo == "foo"
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foo != "foo"
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CRYSTAL
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end
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it "reports if there is a dynamic comparison possibly evaluating to the same" do
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expect_issue subject, <<-CRYSTAL
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[foo] === ["foo"]
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# ^^^^^^^^^^^^^^^ error: Comparison most likely evaluates to the same
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CRYSTAL
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end
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it "reports if there is a static comparison evaluating to the same" do
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expect_issue subject, <<-CRYSTAL
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"foo" === "foo"
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# ^^^^^^^^^^^^^ error: Comparison always evaluates to the same
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CRYSTAL
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end
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it "reports if there is a static comparison evaluating to true (2)" do
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expect_issue subject, <<-CRYSTAL
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"foo" == "foo"
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# ^^^^^^^^^^^^ error: Comparison always evaluates to true
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CRYSTAL
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end
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it "reports if there is a static comparison evaluating to false" do
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expect_issue subject, <<-CRYSTAL
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"foo" != "foo"
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# ^^^^^^^^^^^^ error: Comparison always evaluates to false
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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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expect_issue subject, <<-CRYSTAL
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{{ "foo" == "foo" }}
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# ^^^^^^^^^^^^^^ error: Comparison always evaluates to true
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CRYSTAL
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end
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it "passes for valid cases" do
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expect_no_issues subject, <<-CRYSTAL
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{{ "foo" == foo }}
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{{ "foo" != foo }}
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{% foo == "foo" %}
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{% foo != "foo" %}
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CRYSTAL
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end
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end
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end
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end
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