shard-ameba/spec/ameba/formatter/util_spec.cr

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Crystal
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require "../../spec_helper"
module Ameba::Formatter
class Subject
include Util
end
subject = Subject.new
describe Util do
describe "#deansify" do
it "returns given string without ANSI codes" do
str = String.build do |io|
io << "foo".colorize.green.underline
io << '-'
io << "bar".colorize.red.underline
end
subject.deansify("foo-bar").should eq "foo-bar"
subject.deansify(str).should eq "foo-bar"
end
end
describe "#trim" do
it "trims string longer than :max_length" do
subject.trim(("+" * 300), 1).should eq "+"
subject.trim(("+" * 300), 3).should eq "+++"
subject.trim(("+" * 300), 5).should eq "+ ..."
subject.trim(("+" * 300), 7).should eq "+++ ..."
end
it "leaves intact string shorter than :max_length" do
subject.trim(("+" * 3), 100).should eq "+++"
end
it "allows to use custom ellipsis" do
subject.trim(("+" * 300), 3, "").should eq "++…"
end
end
describe "#context" do
it "returns correct pre/post context lines" do
source = Source.new <<-EOF
# pre:1
# pre:2
# pre:3
# pre:4
# pre:5
a = 1
# post:1
# post:2
# post:3
# post:4
# post:5
EOF
subject.context(source.lines, lineno: 6, context_lines: 3)
.should eq({<<-PRE.lines, <<-POST.lines
# pre:3
# pre:4
# pre:5
PRE
# post:1
# post:2
# post:3
POST
})
end
end
describe "#affected_code" do
it "returns nil if there is no such a line number" do
code = <<-EOF
a = 1
EOF
location = Crystal::Location.new("filename", 2, 1)
subject.affected_code(code, location).should be_nil
end
it "returns correct line if it is found" do
code = <<-EOF
a = 1
EOF
location = Crystal::Location.new("filename", 1, 1)
subject.deansify(subject.affected_code(code, location))
.should eq "> a = 1\n ^\n"
end
it "returns correct line if it is found" do
code = <<-EOF
# pre:1
# pre:2
# pre:3
# pre:4
# pre:5
a = 1
# post:1
# post:2
# post:3
# post:4
# post:5
EOF
location = Crystal::Location.new("filename", 6, 1)
subject.deansify(subject.affected_code(code, location, context_lines: 3))
.should eq <<-STR
> # pre:3
> # pre:4
> # pre:5
> a = 1
^
> # post:1
> # post:2
> # post:3
STR
end
end
end
end