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https://github.com/inspec/inspec
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78 lines
2 KiB
Ruby
78 lines
2 KiB
Ruby
# encoding: utf-8
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# author: Steven Danna <steve@chef.io>
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#
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require 'helper'
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require 'rbconfig'
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require 'mocha/test_unit'
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require 'inspec/shell_detector'
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module ShellDetectorTestHelpers
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def no_proc
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Dir.expects(:exist?).with('/proc').returns(false)
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end
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def with_proc(shell)
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Dir.expects(:exist?).with('/proc').returns(true)
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File.expects(:readlink).with("/proc/#{ppid}/exe").returns(shell)
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end
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def with_ps(output)
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subject.expects(:'`').with("ps -cp #{ppid} -o command=").returns(output)
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end
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def with_env(shell)
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ENV.expects(:[]).with('SHELL').returns(shell)
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end
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def with_pwuid(shell)
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Process.expects(:uid).returns(9999)
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@mock_user = Minitest::Mock.new
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@mock_user.expect :shell, shell
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Etc.expects(:getpwuid).with(9999).returns(@mock_user)
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end
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end
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describe Inspec::ShellDetector do
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include ShellDetectorTestHelpers
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let(:subject) { Inspec::ShellDetector.new }
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let(:ppid) { Process.ppid }
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# Small hack to ensure we can test on windows
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it "returns nil immediately if running on windows" do
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RbConfig::CONFIG.expects(:[]).with('host_os').returns('mswin')
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subject.shell!.must_be_nil
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end
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describe "not on windows" do
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before do
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RbConfig::CONFIG.expects(:[]).with('host_os').returns('beos')
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end
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it "detects the shell via /proc if it exists" do
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with_proc("/usr/bin/fish")
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subject.shell!.must_equal("fish")
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end
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it "detects via `ps` if /proc doesn't exist" do
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no_proc; with_ps("/usr/bin/ksh")
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subject.shell!.must_equal("ksh")
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end
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it "detects via ENV if parent process methods failed" do
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no_proc; with_ps(""); with_env("fish")
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subject.shell!.must_equal("fish")
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end
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it "detects via getpwuid if all else fails" do
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no_proc; with_ps(""); with_env(""); with_pwuid("/usr/bin/fish")
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subject.shell!.must_equal("fish")
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@mock_user.verify
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end
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it "returns nil if the shell isn't in the whitelist" do
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no_proc; with_ps(""); with_env("badshell"); with_pwuid("/usr/bin/badshell")
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subject.shell!.must_be_nil
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end
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end
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end
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