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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/common', __FILE__)
describe "Exception#backtrace" do
before(:each) do
@backtrace = ExceptionSpecs::Backtrace.backtrace
end
it "returns nil if no backtrace was set" do
Exception.new.backtrace.should be_nil
end
it "returns an Array" do
@backtrace.should be_an_instance_of(Array)
end
it "sets each element to a String" do
@backtrace.each {|l| l.should be_an_instance_of(String)}
end
it "includes the filename of the location where self raised in the first element" do
@backtrace.first.should =~ /common\.rb/
end
it "includes the line number of the location where self raised in the first element" do
@backtrace.first.should =~ /:22:in /
end
it "includes the name of the method from where self raised in the first element" do
@backtrace.first.should =~ /in `backtrace'/
end
it "includes the filename of the location immediately prior to where self raised in the second element" do
@backtrace[1].should =~ /backtrace_spec\.rb/
end
it "includes the line number of the location immediately prior to where self raised in the second element" do
@backtrace[1].should =~ /:6(:in )?/
end
it "contains lines of the same format for each prior position in the stack" do
@backtrace[2..-1].each do |line|
# This regexp is deliberately imprecise to account for 1.9 using
# absolute paths where 1.8 used relative paths, the need to abstract out
# the paths of the included mspec files, the differences in output
# between 1.8 and 1.9, and the desire to avoid specifying in any
# detail what the in `...' portion looks like.
line.should =~ /^[^ ]+\:\d+(:in `[^`]+')?$/
end
end
end
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