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require 'spec_helper'
require 'mspec/guards'
require 'mspec/helpers'
require 'rbconfig'
class RubyExeSpecs
public :ruby_exe_options
public :resolve_ruby_exe
public :ruby_cmd
public :ruby_exe
end
RSpec.describe "#ruby_exe_options" do
before :each do
@ruby_exe_env = ENV['RUBY_EXE']
@script = RubyExeSpecs.new
end
after :each do
ENV['RUBY_EXE'] = @ruby_exe_env
end
it "returns ENV['RUBY_EXE'] when passed :env" do
ENV['RUBY_EXE'] = "kowabunga"
expect(@script.ruby_exe_options(:env)).to eq("kowabunga")
end
it "returns 'bin/jruby' when passed :engine and RUBY_ENGINE is 'jruby'" do
stub_const "RUBY_ENGINE", 'jruby'
expect(@script.ruby_exe_options(:engine)).to eq('bin/jruby')
end
it "returns 'bin/rbx' when passed :engine, RUBY_ENGINE is 'rbx'" do
stub_const "RUBY_ENGINE", 'rbx'
expect(@script.ruby_exe_options(:engine)).to eq('bin/rbx')
end
it "returns 'ir' when passed :engine and RUBY_ENGINE is 'ironruby'" do
stub_const "RUBY_ENGINE", 'ironruby'
expect(@script.ruby_exe_options(:engine)).to eq('ir')
end
it "returns 'maglev-ruby' when passed :engine and RUBY_ENGINE is 'maglev'" do
stub_const "RUBY_ENGINE", 'maglev'
expect(@script.ruby_exe_options(:engine)).to eq('maglev-ruby')
end
it "returns 'topaz' when passed :engine and RUBY_ENGINE is 'topaz'" do
stub_const "RUBY_ENGINE", 'topaz'
expect(@script.ruby_exe_options(:engine)).to eq('topaz')
end
it "returns RUBY_ENGINE + $(EXEEXT) when passed :name" do
bin = RUBY_ENGINE + (RbConfig::CONFIG['EXEEXT'] || RbConfig::CONFIG['exeext'] || '')
name = File.join ".", bin
expect(@script.ruby_exe_options(:name)).to eq(name)
end
it "returns $(bindir)/$(RUBY_INSTALL_NAME) + $(EXEEXT) when passed :install_name" do
bin = RbConfig::CONFIG['RUBY_INSTALL_NAME'] + (RbConfig::CONFIG['EXEEXT'] || RbConfig::CONFIG['exeext'] || '')
name = File.join RbConfig::CONFIG['bindir'], bin
expect(@script.ruby_exe_options(:install_name)).to eq(name)
end
end
RSpec.describe "#resolve_ruby_exe" do
before :each do
@name = "ruby_spec_exe"
@script = RubyExeSpecs.new
end
it "returns the value returned by #ruby_exe_options if it exists and is executable" do
expect(@script).to receive(:ruby_exe_options).and_return(@name)
expect(File).to receive(:file?).with(@name).and_return(true)
expect(File).to receive(:executable?).with(@name).and_return(true)
expect(File).to receive(:expand_path).with(@name).and_return(@name)
expect(@script.resolve_ruby_exe).to eq(@name)
end
it "expands the path portion of the result of #ruby_exe_options" do
expect(@script).to receive(:ruby_exe_options).and_return("#{@name}")
expect(File).to receive(:file?).with(@name).and_return(true)
expect(File).to receive(:executable?).with(@name).and_return(true)
expect(File).to receive(:expand_path).with(@name).and_return("/usr/bin/#{@name}")
expect(@script.resolve_ruby_exe).to eq("/usr/bin/#{@name}")
end
it "adds the flags after the executable" do
@name = 'bin/rbx'
expect(@script).to receive(:ruby_exe_options).and_return(@name)
expect(File).to receive(:file?).with(@name).and_return(true)
expect(File).to receive(:executable?).with(@name).and_return(true)
expect(File).to receive(:expand_path).with(@name).and_return(@name)
expect(ENV).to receive(:[]).with("RUBY_FLAGS").and_return('-X19')
expect(@script.resolve_ruby_exe).to eq('bin/rbx -X19')
end
it "raises an exception if no exe is found" do
expect(File).to receive(:file?).at_least(:once).and_return(false)
expect {
@script.resolve_ruby_exe
}.to raise_error(Exception)
end
end
RSpec.describe Object, "#ruby_cmd" do
before :each do
stub_const 'RUBY_EXE', 'ruby_spec_exe -w -Q'
@file = "some/ruby/file.rb"
@code = %(some "real" 'ruby' code)
@script = RubyExeSpecs.new
end
it "returns a command that runs the given file if it is a file that exists" do
expect(File).to receive(:exist?).with(@file).and_return(true)
expect(@script.ruby_cmd(@file)).to eq("ruby_spec_exe -w -Q some/ruby/file.rb")
end
it "includes the given options and arguments with a file" do
expect(File).to receive(:exist?).with(@file).and_return(true)
expect(@script.ruby_cmd(@file, :options => "-w -Cdir", :args => "< file.txt")).to eq(
"ruby_spec_exe -w -Q -w -Cdir some/ruby/file.rb < file.txt"
)
end
it "includes the given options and arguments with -e" do
expect(File).to receive(:exist?).with(@code).and_return(false)
expect(@script.ruby_cmd(@code, :options => "-W0 -Cdir", :args => "< file.txt")).to eq(
%(ruby_spec_exe -w -Q -W0 -Cdir -e "some \\"real\\" 'ruby' code" < file.txt)
)
end
it "returns a command with options and arguments but without code or file" do
expect(@script.ruby_cmd(nil, :options => "-c", :args => "> file.txt")).to eq(
"ruby_spec_exe -w -Q -c > file.txt"
)
end
end
RSpec.describe Object, "#ruby_exe" do
before :each do
stub_const 'RUBY_EXE', 'ruby_spec_exe -w -Q'
@script = RubyExeSpecs.new
allow(IO).to receive(:popen).and_return('OUTPUT')
status_successful = double(Process::Status, exited?: true, exitstatus: 0)
allow(Process).to receive(:last_status).and_return(status_successful)
end
it "returns command STDOUT when given command" do
code = "code"
options = {}
output = "output"
expect(IO).to receive(:popen).and_return(output)
expect(@script.ruby_exe(code, options)).to eq output
end
it "returns an Array containing the interpreter executable and flags when given no arguments" do
expect(@script.ruby_exe).to eq(['ruby_spec_exe', '-w', '-Q'])
end
it "executes (using `) the result of calling #ruby_cmd with the given arguments" do
code = "code"
options = {}
expect(@script).to receive(:ruby_cmd).and_return("ruby_cmd")
expect(IO).to receive(:popen).with("ruby_cmd")
@script.ruby_exe(code, options)
end
it "raises exception when command exit status is not successful" do
code = "code"
options = {}
status_failed = double(Process::Status, exited?: true, exitstatus: 4)
allow(Process).to receive(:last_status).and_return(status_failed)
expect {
@script.ruby_exe(code, options)
}.to raise_error(%r{Expected exit status is 0 but actual is 4 for command ruby_exe\(.+\)})
end
it "shows in the exception message if a signal killed the process" do
code = "code"
options = {}
status_failed = double(Process::Status, exited?: false, signaled?: true, termsig: Signal.list.fetch('TERM'))
allow(Process).to receive(:last_status).and_return(status_failed)
expect {
@script.ruby_exe(code, options)
}.to raise_error(%r{Expected exit status is 0 but actual is :SIGTERM for command ruby_exe\(.+\)})
end
describe "with :dir option" do
it "is deprecated" do
expect {
@script.ruby_exe nil, :dir => "tmp"
}.to raise_error(/no longer supported, use Dir\.chdir/)
end
end
describe "with :env option" do
it "preserves the values of existing ENV keys" do
ENV["ABC"] = "123"
allow(ENV).to receive(:[])
expect(ENV).to receive(:[]).with("ABC")
@script.ruby_exe nil, :env => { :ABC => "xyz" }
end
it "adds the :env entries to ENV" do
expect(ENV).to receive(:[]=).with("ABC", "xyz")
@script.ruby_exe nil, :env => { :ABC => "xyz" }
end
it "deletes the :env entries in ENV when an exception is raised" do
expect(ENV).to receive(:delete).with("XYZ")
@script.ruby_exe nil, :env => { :XYZ => "xyz" }
end
it "resets the values of existing ENV keys when an exception is raised" do
ENV["ABC"] = "123"
expect(ENV).to receive(:[]=).with("ABC", "xyz")
expect(ENV).to receive(:[]=).with("ABC", "123")
expect(IO).to receive(:popen).and_raise(Exception)
expect do
@script.ruby_exe nil, :env => { :ABC => "xyz" }
end.to raise_error(Exception)
end
end
describe "with :exit_status option" do
before do
status_failed = double(Process::Status, exited?: true, exitstatus: 4)
allow(Process).to receive(:last_status).and_return(status_failed)
end
it "raises exception when command ends with not expected status" do
expect {
@script.ruby_exe("path", exit_status: 1)
}.to raise_error(%r{Expected exit status is 1 but actual is 4 for command ruby_exe\(.+\)})
end
it "does not raise exception when command ends with expected status" do
output = "output"
expect(IO).to receive(:popen).and_return(output)
expect(@script.ruby_exe("path", exit_status: 4)).to eq output
end
end
end
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