vendor/plugins/rspec/spec/spec/expectations/differs/default_spec.rb

     1require File.dirname(__FILE__) + '/../../../spec_helper.rb'
     2
     3module Spec
     4  module Fixtures
     5    class Animal
     6      def initialize(name,species)
     7        @name,@species = name,species
     8      end
     9
    10      def inspect
    11        <<-EOA
    12<Animal
    13  name=#{@name},
    14  species=#{@species}
    15>
    16        EOA
    17      end
    18    end
    19  end
    20end
    21
    22describe "Diff" do
    23  before(:each) do
    24    @options = ::Spec::Runner::Options.new(StringIO.new, StringIO.new)
    25    @differ = Spec::Expectations::Differs::Default.new(@options)
    26  end
    27
    28  it "should output unified diff of two strings" do
    29    expected="foo\nbar\nzap\nthis\nis\nsoo\nvery\nvery\nequal\ninsert\na\nline\n"
    30    actual="foo\nzap\nbar\nthis\nis\nsoo\nvery\nvery\nequal\ninsert\na\nanother\nline\n"
    31    expected_diff="\n\n@@ -1,6 +1,6 @@\n foo\n-bar\n zap\n+bar\n this\n is\n soo\n@@ -9,5 +9,6 @@\n equal\n insert\n a\n+another\n line\n"
    32    diff = @differ.diff_as_string(expected, actual)
    33    diff.should eql(expected_diff)
    34  end
    35
    36  it "should output unified diff message of two arrays" do
    37    expected = [ :foo, 'bar', :baz, 'quux', :metasyntactic, 'variable', :delta, 'charlie', :width, 'quite wide' ]
    38    actual   = [ :foo, 'bar', :baz, 'quux', :metasyntactic, 'variable', :delta, 'tango'  , :width, 'very wide'  ]
    39
    40    expected_diff = <<'EOD'
    41
    42
    43@@ -5,7 +5,7 @@
    44  :metasyntactic,
    45  "variable",
    46  :delta,
    47- "charlie",
    48+ "tango",
    49  :width,
    50- "quite wide"]
    51+ "very wide"]
    52EOD
    53
    54
    55    diff = @differ.diff_as_object(expected,actual)
    56    diff.should == expected_diff
    57  end
    58
    59  it "should output unified diff message of two objects" do
    60    expected = Spec::Fixtures::Animal.new "bob", "giraffe"
    61    actual   = Spec::Fixtures::Animal.new "bob", "tortoise"
    62
    63    expected_diff = <<'EOD'
    64
    65@@ -1,5 +1,5 @@
    66 <Animal
    67   name=bob,
    68-  species=giraffe
    69+  species=tortoise
    70 >
    71EOD
    72
    73    diff = @differ.diff_as_object(expected,actual)
    74    diff.should == expected_diff
    75  end
    76
    77end
    78
    79
    80describe "Diff in context format" do
    81  before(:each) do
    82    @options = Spec::Runner::Options.new(StringIO.new, StringIO.new)
    83    @options.diff_format = :context
    84    @differ = Spec::Expectations::Differs::Default.new(@options)
    85  end
    86
    87  it "should output unified diff message of two objects" do
    88    expected = Spec::Fixtures::Animal.new "bob", "giraffe"
    89    actual   = Spec::Fixtures::Animal.new "bob", "tortoise"
    90
    91    expected_diff = <<'EOD'
    92
    93***************
    94*** 1,5 ****
    95  <Animal
    96    name=bob,
    97!   species=giraffe
    98  >
    99--- 1,5 ----
   100  <Animal
   101    name=bob,
   102!   species=tortoise
   103  >
   104EOD
   105
   106    diff = @differ.diff_as_object(expected,actual)
   107    diff.should == expected_diff
   108  end
   109end