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74 lines
2.2 KiB
Ruby
74 lines
2.2 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/caller'
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describe 'Kernel#caller' do
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it 'is a private method' do
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Kernel.should have_private_instance_method(:caller)
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end
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it 'returns an Array of caller locations' do
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KernelSpecs::CallerTest.locations.should_not.empty?
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end
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it 'returns an Array of caller locations using a custom offset' do
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locations = KernelSpecs::CallerTest.locations(2)
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locations[0].should =~ %r{runner/mspec.rb}
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end
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it 'returns an Array of caller locations using a custom limit' do
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locations = KernelSpecs::CallerTest.locations(1, 1)
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locations.length.should == 1
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end
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it 'returns an Array of caller locations using a range' do
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locations = KernelSpecs::CallerTest.locations(1..1)
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locations.length.should == 1
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end
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it 'returns the locations as String instances' do
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locations = KernelSpecs::CallerTest.locations
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line = __LINE__ - 1
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locations[0].should include("#{__FILE__}:#{line}:in")
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end
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it "returns an Array with the block given to #at_exit at the base of the stack" do
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path = fixture(__FILE__, "caller_at_exit.rb")
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lines = ruby_exe(path).lines
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lines.should == [
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"#{path}:6:in `foo'\n",
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"#{path}:2:in `block in <main>'\n"
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]
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end
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ruby_version_is "2.6" do
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it "works with endless ranges" do
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locations1 = KernelSpecs::CallerTest.locations(0)
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locations2 = KernelSpecs::CallerTest.locations(eval("(2..)"))
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locations2.map(&:to_s).should == locations1[2..-1].map(&:to_s)
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end
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end
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ruby_version_is "2.7" do
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it "works with beginless ranges" do
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locations1 = KernelSpecs::CallerTest.locations(0)
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locations2 = KernelSpecs::CallerTest.locations(eval("(..5)"))
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locations2.map(&:to_s)[eval("(2..)")].should == locations1[eval("(..5)")].map(&:to_s)[eval("(2..)")]
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end
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end
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guard -> { Kernel.instance_method(:tap).source_location } do
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it "includes core library methods defined in Ruby" do
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file, line = Kernel.instance_method(:tap).source_location
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file.should.start_with?('<internal:')
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loc = nil
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tap { loc = caller(1, 1)[0] }
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loc.should.end_with? "in `tap'"
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loc.should.start_with? "<internal:"
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end
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end
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end
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