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require_relative '../../spec_helper'
require_relative 'fixtures/common'
describe "Exception#set_backtrace" do
it "accepts an Array of Strings" do
err = RuntimeError.new
err.set_backtrace ["unhappy"]
err.backtrace.should == ["unhappy"]
end
it "allows the user to set the backtrace from a rescued exception" do
bt = ExceptionSpecs::Backtrace.backtrace
err = RuntimeError.new
err.backtrace.should == nil
err.backtrace_locations.should == nil
err.set_backtrace bt
err.backtrace.should == bt
err.backtrace_locations.should == nil
end
ruby_version_is "3.4" do
it "allows the user to set backtrace locations from a rescued exception" do
bt_locations = ExceptionSpecs::Backtrace.backtrace_locations
err = RuntimeError.new
err.backtrace.should == nil
err.backtrace_locations.should == nil
err.set_backtrace bt_locations
err.backtrace_locations.size.should == bt_locations.size
err.backtrace_locations.each_with_index do |loc, index|
other_loc = bt_locations[index]
loc.path.should == other_loc.path
loc.label.should == other_loc.label
loc.base_label.should == other_loc.base_label
loc.lineno.should == other_loc.lineno
loc.absolute_path.should == other_loc.absolute_path
loc.to_s.should == other_loc.to_s
end
err.backtrace.size.should == err.backtrace_locations.size
end
end
it "accepts an empty Array" do
err = RuntimeError.new
err.set_backtrace []
err.backtrace.should == []
end
it "accepts a String" do
err = RuntimeError.new
err.set_backtrace "unhappy"
err.backtrace.should == ["unhappy"]
end
it "accepts nil" do
err = RuntimeError.new
err.set_backtrace nil
err.backtrace.should be_nil
end
it "raises a TypeError when passed a Symbol" do
err = RuntimeError.new
-> { err.set_backtrace :unhappy }.should raise_error(TypeError)
end
it "raises a TypeError when the Array contains a Symbol" do
err = RuntimeError.new
-> { err.set_backtrace ["String", :unhappy] }.should raise_error(TypeError)
end
it "raises a TypeError when the array contains nil" do
err = Exception.new
-> { err.set_backtrace ["String", nil] }.should raise_error(TypeError)
end
it "raises a TypeError when the argument is a nested array" do
err = Exception.new
-> { err.set_backtrace ["String", ["String"]] }.should raise_error(TypeError)
end
end
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