JezK

Edit File: help_test.rb

require "utils"
require 'capistrano/cli/help'

class CLIHelpTest < Test::Unit::TestCase
  class MockCLI
    attr_reader :options, :called_original

def initialize
      @options = {}
      @called_original = false
    end

def execute_requested_actions(config)
      @called_original = config
    end

include Capistrano::CLI::Help
  end

def setup
    @cli = MockCLI.new
    @cli.options[:verbose] = 0
    @ui = stub("ui", :output_cols => 80, :output_rows => 20, :page_at= => nil)
    MockCLI.stubs(:ui).returns(@ui)
  end

def test_execute_requested_actions_without_tasks_or_explain_should_call_original
    @cli.execute_requested_actions(:config)
    @cli.expects(:task_list).never
    @cli.expects(:explain_task).never
    assert_equal :config, @cli.called_original
  end

def test_execute_requested_actions_with_tasks_should_call_task_list
    @cli.options[:tasks] = true
    @cli.expects(:task_list).with(:config, true)
    @cli.expects(:explain_task).never
    @cli.execute_requested_actions(:config)
    assert !@cli.called_original
  end

def test_execute_requested_actions_with_explain_should_call_explain_task
    @cli.options[:explain] = "deploy_with_niftiness"
    @cli.expects(:task_list).never
    @cli.expects(:explain_task).with(:config, "deploy_with_niftiness")
    @cli.execute_requested_actions(:config)
    assert !@cli.called_original
  end

def test_task_list_with_no_tasks_should_emit_warning
    config = mock("config", :task_list => [])
    @cli.expects(:warn)
    @cli.task_list(config)
  end

def test_task_list_should_query_all_tasks_in_all_namespaces
    expected_max_len = 80 - 3 - MockCLI::LINE_PADDING
    task_list = [task("c"), task("g", "c:g"), task("b", "c:b"), task("a")]
    task_list.each { |t| t.expects(:brief_description).with(expected_max_len).returns(t.fully_qualified_name) }

config = mock("config")
    config.expects(:task_list).with(:all).returns(task_list)
    @cli.stubs(:puts)
    @cli.task_list(config)
  end

def test_task_list_should_query_tasks_with_pattern
    expected_max_len = 80 - 3 - MockCLI::LINE_PADDING
    task_list = [task("g", "c:g"), task("b", "c:b")]
    task_list.each { |t| t.expects(:brief_description).with(expected_max_len).returns(t.fully_qualified_name)}

config = mock("config")
    config.expects(:task_list).with(:all).once.returns(task_list)

@cli.stubs(:puts)
    @cli.task_list(config, "c")
  end

def test_task_list_should_query_for_all_tasks_when_pattern_doesnt_match
    expected_max_len = 80 - 3 - MockCLI::LINE_PADDING
    task_list = [task("g", "c:g"), task("b", "c:b")]
    task_list.each { |t| t.expects(:brief_description).with(expected_max_len).returns(t.fully_qualified_name) }

config = mock("config")
    config.expects(:task_list).with(:all).times(2).returns(task_list)

@cli.stubs(:warn)
    @cli.stubs(:puts)
    @cli.task_list(config, "z")
  end

def test_task_list_should_never_use_less_than_MIN_MAX_LEN_chars_for_descriptions
    @ui.stubs(:output_cols).returns(20)
    t = task("c")
    t.expects(:brief_description).with(30).returns("hello")
    config = mock("config", :task_list => [t])
    @cli.stubs(:puts)
    @cli.task_list(config)
  end

def test_task_list_should_not_include_tasks_with_blank_description_or_internal_by_default
    t1 = task("c")
    t1.expects(:brief_description).returns("hello")
    t2 = task("d", "d", "[internal] howdy")
    t2.expects(:brief_description).never
    t3 = task("e", "e", "")
    t3.expects(:brief_description).never

config = mock("config", :task_list => [t1, t2, t3])
    @cli.stubs(:puts)
    @cli.expects(:puts).never.with { |s,| (s || "").include?("[internal]") || s =~ /#\s*$/ }
    @cli.task_list(config)
  end

def test_task_list_should_include_tasks_with_blank_descriptions_and_internal_when_verbose
    t1 = task("c")
    t1.expects(:brief_description).returns("hello")
    t2 = task("d", "d", "[internal] howdy")
    t2.expects(:brief_description).returns("[internal] howdy")
    t3 = task("e", "e", "")
    t3.expects(:brief_description).returns("")

config = mock("config", :task_list => [t1, t2, t3])
    @cli.options[:verbose] = 1
    @cli.stubs(:puts)
    @cli.expects(:puts).with { |s,| (s || "").include?("[internal]") || s =~ /#\s*$/ }.at_least_once
    @cli.task_list(config)
  end

def test_explain_task_should_warn_if_task_does_not_exist
    config = mock("config", :find_task => nil)
    @cli.expects(:warn).with { |s,| s =~ /`deploy_with_niftiness'/ }
    @cli.explain_task(config, "deploy_with_niftiness")
  end

def test_explain_task_with_task_that_has_no_description_should_emit_stub
    t = mock("task", :description => "")
    config = mock("config")
    config.expects(:find_task).with("deploy_with_niftiness").returns(t)
    @cli.stubs(:puts)
    @cli.expects(:puts).with("There is no description for this task.")
    @cli.explain_task(config, "deploy_with_niftiness")
  end

def test_explain_task_with_task_should_format_description
    t = stub("task", :description => "line1\nline2\n\nline3")
    config = mock("config", :find_task => t)
    @cli.stubs(:puts)
    @cli.explain_task(config, "deploy_with_niftiness")
  end

def test_long_help_should_load_and_format_help_txt_file
    File.expects(:dirname).returns "a/b/c"
    File.expects(:read).with("a/b/c/help.txt").returns("text")
    @ui.expects(:say).with("text\n")
    @cli.long_help
  end

private

def task(name, fqn=name, desc="a description")
    stub("task", :name => name, :fully_qualified_name => fqn, :description => desc)
  end

end

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