112 lines
3.0 KiB
Ruby
112 lines
3.0 KiB
Ruby
# frozen_string_literal: true
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RSpec.describe Pry::ColorPrinter do
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let(:output) { StringIO.new }
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describe ".default" do
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let(:output) { StringIO.new }
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let(:pry_instance) { Pry.new(output: output) }
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it "prints output prefix with value" do
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described_class.default(StringIO.new, 'foo', pry_instance)
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expect(output.string).to eq("=> \"foo\"\n")
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end
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end
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describe ".pp" do
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context "when no exception is raised in #inspect" do
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let(:healthy_class) do
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Class.new do
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def inspect
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'string'
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end
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end
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end
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it "prints a string with a newline" do
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described_class.pp(healthy_class.new, output)
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expect(output.string).to eq("string\n")
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end
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end
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context "when an exception is raised in #inspect" do
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let(:broken_class) do
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Class.new do
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def inspect
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raise
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end
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end
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end
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it "still prints a string" do
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described_class.pp(broken_class.new, output)
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expect(output.string)
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.to match(/\A\e\[32m#<#<Class:0x.+>:0x.+>\e\[0m\e\[0m\n\z/)
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end
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end
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context "when printing a BasicObject" do
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it "prints a string" do
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described_class.pp(BasicObject.new, output)
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expect(output.string)
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.to match(/\A\e\[32m#<BasicObject:0x.+>\e\[0m\e\[0m\n\z/)
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end
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end
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context "when #inspect returns an object literal" do
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let(:klass) do
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Class.new do
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def inspect
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'#<Object:0x00007fe86bab53c8>'
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end
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end
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end
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it "prints the object inspect" do
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described_class.pp(klass.new, output)
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expect(output.string).to eq("\e[32m#<Object:0x00007fe86bab53c8>\e[0m\n")
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end
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context "and when SyntaxHighlighter returns a token starting with '\e'" do
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before do
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expect(Pry::SyntaxHighlighter).to receive(:keyword_token_color)
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.and_return("\e[32m")
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end
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it "prints the object as is" do
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described_class.pp(klass.new, output)
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expect(output.string).to eq("\e[32m#<Object:0x00007fe86bab53c8>\e[0m\n")
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end
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end
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context "and when SyntaxHighlighter returns a token that doesn't start with '\e'" do
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before do
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expect(Pry::SyntaxHighlighter).to receive(:keyword_token_color)
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.and_return('token')
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end
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it "prints the object with escape characters" do
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described_class.pp(klass.new, output)
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expect(output.string)
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.to eq("\e[0m\e[0;tokenm#<Object:0x00007fe86bab53c8>\e[0m\n")
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end
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end
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end
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context "when #inspect raises Pry::Pager::StopPaging" do
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let(:klass) do
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Class.new do
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def inspect
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raise Pry::Pager::StopPaging
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end
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end
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end
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it "propagates the error" do
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expect { described_class.pp(klass.new, output) }
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.to raise_error(Pry::Pager::StopPaging)
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end
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end
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end
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end
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