* ext/syck/rubyext.c: default keys handled.

* ext/syck/syck.h: lowered default buffer size to 16k for increased
  performance.

* test/yaml: checkin of basic unit tests.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1155 insertions, 0 deletions

diff --git a/test/yaml/test_yaml.rb b/test/yaml/test_yaml.rb
new file mode 100644
index 0000000000..8baad11e5f
--- /dev/null
+++ b/test/yaml/test_yaml.rb
@@ -0,0 +1,1155 @@
+#												vim:sw=4:ts=4
+# $Id$
+#
+require 'test/unit/testsuite'
+require 'test/unit/testcase'
+require 'yaml'
+
+class YAML_Unit_Tests < Test::Unit::TestCase
+	#
+	# Convert between YAML and the object to verify correct parsing and
+	# emitting
+	#
+	def assert_to_yaml( obj, yaml )
+		assert_equal( obj, YAML::load( yaml ) )
+		assert_equal( obj, YAML::parse( yaml ).transform )
+        assert_equal( obj, YAML::load( obj.to_yaml ) )
+		assert_equal( obj, YAML::parse( obj.to_yaml ).transform )
+        assert_equal( obj, YAML::load(
+			obj.to_yaml( :UseVersion => true, :UseHeader => true, :SortKeys => true ) 
+		) )
+	end
+
+	#
+	# Test parser only
+	#
+	def assert_parse_only( obj, yaml )
+		assert_equal( obj, YAML::load( yaml ) )
+		assert_equal( obj, YAML::parse( yaml ).transform )
+	end
+
+    def assert_path_segments( path, segments )
+        YAML::YPath.each_path( path ) { |choice|
+            assert_equal( choice.segments, segments.shift )
+        }
+        assert_equal( segments.length, 0, "Some segments leftover: #{ segments.inspect }" )
+    end
+
+	#
+	# Make a time with the time zone
+	#
+	def mktime( year, mon, day, hour, min, sec, usec, zone = "Z" )
+        usec = usec.to_s.to_f * 1000000
+		val = Time::utc( year.to_i, mon.to_i, day.to_i, hour.to_i, min.to_i, sec.to_i, usec )
+		if zone != "Z"
+			hour = zone[0,3].to_i * 3600
+			min = zone[3,2].to_i * 60
+			ofs = (hour + min)
+			val = Time.at( val.to_f - ofs )
+		end
+		return val
+	end
+
+	#
+	# Tests modified from 00basic.t in YAML.pm
+	#
+	def test_basic_map
+		# Simple map
+		assert_parse_only(
+			{ 'one' => 'foo', 'three' => 'baz', 'two' => 'bar' }, <<EOY
+one: foo
+two: bar
+three: baz
+EOY
+		)
+	end
+
+	def test_basic_strings
+		# Common string types
+		assert_parse_only(
+			{ 1 => 'simple string', 2 => 42, 3 => '1 Single Quoted String',
+			  4 => 'YAML\'s Double "Quoted" String', 5 => "A block\n  with several\n    lines.\n",
+			  6 => "A \"chomped\" block", 7 => "A folded\n string\n" }, <<EOY
+1: simple string
+2: 42
+3: '1 Single Quoted String'
+4: "YAML's Double \\\"Quoted\\\" String"
+5: |
+  A block
+    with several
+      lines.
+6: |-
+  A "chomped" block
+7: >
+  A
+  folded
+   string
+EOY
+		)
+	end
+
+	#
+	# Test the specification examples
+	# - Many examples have been changes because of whitespace problems that
+	#   caused the two to be inequivalent, or keys to be sorted wrong
+	#
+
+	def test_spec_simple_implicit_sequence
+	  	# Simple implicit sequence
+		assert_to_yaml(
+			[ 'Mark McGwire', 'Sammy Sosa', 'Ken Griffey' ], <<EOY
+- Mark McGwire
+- Sammy Sosa
+- Ken Griffey
+EOY
+		)
+	end
+
+	def test_spec_simple_implicit_map
+		# Simple implicit map
+		assert_to_yaml(
+			{ 'hr' => 65, 'avg' => 0.278, 'rbi' => 147 }, <<EOY
+avg: 0.278
+hr: 65
+rbi: 147
+EOY
+		)
+	end
+
+	def test_spec_simple_map_with_nested_sequences
+		# Simple mapping with nested sequences
+		assert_to_yaml(
+			{ 'american' => 
+			  [ 'Boston Red Sox', 'Detroit Tigers', 'New York Yankees' ],
+			  'national' =>
+			  [ 'New York Mets', 'Chicago Cubs', 'Atlanta Braves' ] }, <<EOY
+american:
+  - Boston Red Sox
+  - Detroit Tigers
+  - New York Yankees
+national:
+  - New York Mets
+  - Chicago Cubs
+  - Atlanta Braves
+EOY
+		)
+	end
+
+	def test_spec_simple_sequence_with_nested_map
+		# Simple sequence with nested map
+		assert_to_yaml(
+		  [
+		    {'name' => 'Mark McGwire', 'hr' => 65, 'avg' => 0.278},
+			{'name' => 'Sammy Sosa', 'hr' => 63, 'avg' => 0.288}
+		  ], <<EOY
+-
+  avg: 0.278
+  hr: 65
+  name: Mark McGwire
+-
+  avg: 0.288
+  hr: 63
+  name: Sammy Sosa
+EOY
+		)
+	end
+
+	def test_spec_sequence_of_sequences
+		# Simple sequence with inline sequences
+		assert_parse_only(
+		  [ 
+		  	[ 'name', 'hr', 'avg' ],
+			[ 'Mark McGwire', 65, 0.278 ],
+			[ 'Sammy Sosa', 63, 0.288 ]
+		  ], <<EOY
+- [ name         , hr , avg   ]
+- [ Mark McGwire , 65 , 0.278 ]
+- [ Sammy Sosa   , 63 , 0.288 ]
+EOY
+		)
+	end
+
+	def test_spec_mapping_of_mappings
+		# Simple map with inline maps
+		assert_parse_only(
+		  { 'Mark McGwire' =>
+		    { 'hr' => 65, 'avg' => 0.278 },
+			'Sammy Sosa' =>
+		    { 'hr' => 63, 'avg' => 0.288 }
+		  }, <<EOY
+Mark McGwire: {hr: 65, avg: 0.278}
+Sammy Sosa:   {hr: 63,
+               avg: 0.288}
+EOY
+		)
+	end
+
+	def test_spec_nested_comments
+		# Map and sequences with comments
+		assert_parse_only(
+		  { 'hr' => [ 'Mark McGwire', 'Sammy Sosa' ],
+		    'rbi' => [ 'Sammy Sosa', 'Ken Griffey' ] }, <<EOY
+hr: # 1998 hr ranking
+  - Mark McGwire
+  - Sammy Sosa
+rbi:
+  # 1998 rbi ranking
+  - Sammy Sosa
+  - Ken Griffey
+EOY
+		)
+	end
+
+	def test_spec_anchors_and_aliases
+		# Anchors and aliases
+		assert_parse_only(
+			{ 'hr' =>
+			  [ 'Mark McGwire', 'Sammy Sosa' ],
+			  'rbi' =>
+			  [ 'Sammy Sosa', 'Ken Griffey' ] }, <<EOY
+hr:
+   - Mark McGwire
+   # Name "Sammy Sosa" scalar SS
+   - &SS Sammy Sosa
+rbi:
+   # So it can be referenced later.
+   - *SS
+   - Ken Griffey
+EOY
+	 	)
+
+        assert_to_yaml(
+            [{"arrival"=>"EDI", "departure"=>"LAX", "fareref"=>"DOGMA", "currency"=>"GBP"}, {"arrival"=>"MEL", "departure"=>"SYD", "fareref"=>"MADF", "currency"=>"AUD"}, {"arrival"=>"MCO", "departure"=>"JFK", "fareref"=>"DFSF", "currency"=>"USD"}], <<EOY
+  -   
+    &F fareref: DOGMA
+    &C currency: GBP
+    &D departure: LAX
+    &A arrival: EDI 
+  - { *F: MADF, *C: AUD, *D: SYD, *A: MEL }
+  - { *F: DFSF, *C: USD, *D: JFK, *A: MCO }
+EOY
+        )
+
+        assert_to_yaml(
+            {"ALIASES"=>["fareref", "currency", "departure", "arrival"], "FARES"=>[{"arrival"=>"EDI", "departure"=>"LAX", "fareref"=>"DOGMA", "currency"=>"GBP"}, {"arrival"=>"MEL", "departure"=>"SYD", "fareref"=>"MADF", "currency"=>"AUD"}, {"arrival"=>"MCO", "departure"=>"JFK", "fareref"=>"DFSF", "currency"=>"USD"}]}, <<EOY
+---
+ALIASES: [&f fareref, &c currency, &d departure, &a arrival]
+FARES:
+- *f: DOGMA
+  *c: GBP
+  *d: LAX
+  *a: EDI
+
+- *f: MADF
+  *c: AUD
+  *d: SYD
+  *a: MEL
+
+- *f: DFSF
+  *c: USD
+  *d: JFK
+  *a: MCO
+
+EOY
+        )
+
+	end
+
+	def test_spec_mapping_between_sequences
+		# Complex key #1
+		dj = Date.new( 2001, 7, 23 )
+		assert_parse_only(
+			{ [ 'Detroit Tigers', 'Chicago Cubs' ] => [ Date.new( 2001, 7, 23 ) ],
+			  [ 'New York Yankees', 'Atlanta Braves' ] => [ Date.new( 2001, 7, 2 ), Date.new( 2001, 8, 12 ), Date.new( 2001, 8, 14 ) ] }, <<EOY
+? # PLAY SCHEDULE
+  - Detroit Tigers
+  - Chicago Cubs
+:  
+  - 2001-07-23
+
+? [ New York Yankees,
+    Atlanta Braves ]
+: [ 2001-07-02, 2001-08-12, 
+    2001-08-14 ]
+EOY
+		)
+
+		# Complex key #2
+		assert_parse_only(
+		  { [ 'New York Yankees', 'Atlanta Braves' ] =>
+		    [ Date.new( 2001, 7, 2 ), Date.new( 2001, 8, 12 ),
+			  Date.new( 2001, 8, 14 ) ],
+			[ 'Detroit Tigers', 'Chicago Cubs' ] =>
+			[ Date.new( 2001, 7, 23 ) ]
+		  }, <<EOY
+?
+    - New York Yankees
+    - Atlanta Braves
+:
+  - 2001-07-02
+  - 2001-08-12
+  - 2001-08-14
+?
+    - Detroit Tigers
+    - Chicago Cubs
+:
+  - 2001-07-23
+EOY
+		)
+	end
+
+	def test_spec_sequence_key_shortcut
+		# Shortcut sequence map
+		assert_parse_only(
+		  { 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ),
+		    'bill-to' => 'Chris Dumars', 'product' =>
+			[ { 'item' => 'Super Hoop', 'quantity' => 1 },
+			  { 'item' => 'Basketball', 'quantity' => 4 },
+			  { 'item' => 'Big Shoes', 'quantity' => 1 } ] }, <<EOY
+invoice: 34843
+date   : 2001-01-23
+bill-to: Chris Dumars
+product:
+  - item    : Super Hoop
+    quantity: 1
+  - item    : Basketball
+    quantity: 4
+  - item    : Big Shoes
+    quantity: 1
+EOY
+		)
+	end
+
+    def test_spec_sequence_in_sequence_shortcut
+        # Seq-in-seq
+        assert_parse_only( [ [ [ 'one', 'two', 'three' ] ] ], <<EOY )
+- - - one
+    - two
+    - three
+EOY
+    end
+
+    def test_spec_sequence_shortcuts
+        # Sequence shortcuts combined
+        assert_parse_only( 
+[
+  [ 
+    [ [ 'one' ] ],
+    [ 'two', 'three' ],
+    { 'four' => nil },
+    [ { 'five' => [ 'six' ] } ],
+    [ 'seven' ]
+  ],
+  [ 'eight', 'nine' ]
+], <<EOY )
+- - - - one
+  - - two
+    - three
+  - four:
+  - - five:
+      - six
+  - - seven
+- - eight
+  - nine
+EOY
+    end
+
+	def test_spec_single_literal
+		# Literal scalar block
+		assert_parse_only( [ "\\/|\\/|\n/ |  |_\n" ], <<EOY )
+- |
+    \\/|\\/|
+    / |  |_
+EOY
+	end
+
+	def test_spec_single_folded
+		# Folded scalar block
+		assert_parse_only(
+			[ "Mark McGwire's year was crippled by a knee injury.\n" ], <<EOY
+- >
+    Mark McGwire's
+    year was crippled
+    by a knee injury.
+EOY
+		)
+	end
+
+	def test_spec_preserve_indent
+		# Preserve indented spaces
+		assert_parse_only(
+			"Sammy Sosa completed another fine season with great stats.\n\n  63 Home Runs\n  0.288 Batting Average\n\nWhat a year!\n", <<EOY
+--- >
+ Sammy Sosa completed another
+ fine season with great stats.
+
+   63 Home Runs
+   0.288 Batting Average
+
+ What a year!
+EOY
+		)
+	end
+
+	def test_spec_indentation_determines_scope
+		assert_parse_only(
+			{ 'name' => 'Mark McGwire', 'accomplishment' => "Mark set a major league home run record in 1998.\n",
+			  'stats' => "65 Home Runs\n0.278 Batting Average\n" }, <<EOY
+name: Mark McGwire
+accomplishment: >
+   Mark set a major league
+   home run record in 1998.
+stats: |
+   65 Home Runs
+   0.278 Batting Average
+EOY
+		)
+	end
+
+	def test_spec_multiline_scalars
+		# Multiline flow scalars
+	 	assert_parse_only(
+	 		{ 'plain' => 'This unquoted scalar spans many lines.',
+	 		  'quoted' => "So does this quoted scalar.\n" }, <<EOY
+plain: This unquoted
+       scalar spans
+       many lines.
+quoted: "\\
+  So does this quoted
+  scalar.\\n"
+EOY
+		)
+	end	
+
+	def test_spec_type_int
+		assert_parse_only(
+			{ 'canonical' => 12345, 'decimal' => 12345, 'octal' => '014'.oct, 'hexadecimal' => '0xC'.hex }, <<EOY
+canonical: 12345
+decimal: +12,345
+octal: 014
+hexadecimal: 0xC
+EOY
+		)
+	end
+
+	def test_spec_type_float
+		assert_parse_only(
+			{ 'canonical' => 1230.15, 'exponential' => 1230.15, 'fixed' => 1230.15,
+			  'negative infinity' => -1.0/0.0 }, <<EOY
+canonical: 1.23015e+3
+exponential: 12.3015e+02
+fixed: 1,230.15
+negative infinity: -.inf
+EOY
+		)
+		nan = YAML::load( <<EOY
+not a number: .NaN
+EOY
+		)
+		assert( nan['not a number'].nan? )
+	end
+
+	def test_spec_type_misc
+		assert_parse_only(
+			{ nil => nil, true => true, false => false, 'string' => '12345' }, <<EOY
+null: ~
+true: yes
+false: no
+string: '12345'
+EOY
+		)
+	end
+
+	def test_spec_complex_invoice
+		# Complex invoice type
+		id001 = { 'given' => 'Chris', 'family' => 'Dumars', 'address' =>
+			{ 'lines' => "458 Walkman Dr.\nSuite #292\n", 'city' => 'Royal Oak',
+			  'state' => 'MI', 'postal' => 48046 } }
+		assert_parse_only(
+			{ 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ),
+			  'bill-to' => id001, 'ship-to' => id001, 'product' =>
+			  [ { 'sku' => 'BL394D', 'quantity' => 4,
+			      'description' => 'Basketball', 'price' => 450.00 },
+				{ 'sku' => 'BL4438H', 'quantity' => 1,
+				  'description' => 'Super Hoop', 'price' => 2392.00 } ],
+			  'tax' => 251.42, 'total' => 4443.52,
+			  'comments' => "Late afternoon is best. Backup contact is Nancy Billsmer @ 338-4338.\n" }, <<EOY
+invoice: 34843
+date   : 2001-01-23
+bill-to: &id001
+    given  : Chris
+    family : !str Dumars
+    address:
+        lines: |
+            458 Walkman Dr.
+            Suite #292
+        city    : Royal Oak
+        state   : MI
+        postal  : 48046
+ship-to: *id001
+product:
+    - !map
+      sku         : BL394D
+      quantity    : 4
+      description : Basketball
+      price       : 450.00
+    - sku         : BL4438H
+      quantity    : 1
+      description : Super Hoop
+      price       : 2392.00
+tax  : 251.42
+total: 4443.52
+comments: >
+    Late afternoon is best.
+    Backup contact is Nancy
+    Billsmer @ 338-4338.
+EOY
+		)
+	end
+
+	def test_spec_log_file
+		doc_ct = 0
+		YAML::load_documents( <<EOY
+---
+Time: 2001-11-23 15:01:42 -05:00
+User: ed
+Warning: >
+  This is an error message
+  for the log file
+---
+Time: 2001-11-23 15:02:31 -05:00
+User: ed
+Warning: >
+  A slightly different error
+  message.
+---
+Date: 2001-11-23 15:03:17 -05:00
+User: ed
+Fatal: >
+  Unknown variable "bar"
+Stack:
+  - file: TopClass.py
+    line: 23
+    code: |
+      x = MoreObject("345\\n")
+  - file: MoreClass.py
+    line: 58
+    code: |-
+      foo = bar
+EOY
+		) { |doc|
+			case doc_ct
+				when 0
+					assert_equal( doc, { 'Time' => mktime( 2001, 11, 23, 15, 01, 42, 00, "-05:00" ),
+						'User' => 'ed', 'Warning' => "This is an error message for the log file\n" } )
+				when 1
+					assert_equal( doc, { 'Time' => mktime( 2001, 11, 23, 15, 02, 31, 00, "-05:00" ),
+						'User' => 'ed', 'Warning' => "A slightly different error message.\n" } )
+				when 2
+					assert_equal( doc, { 'Date' => mktime( 2001, 11, 23, 15, 03, 17, 00, "-05:00" ),
+						'User' => 'ed', 'Fatal' => "Unknown variable \"bar\"\n",
+						'Stack' => [
+							{ 'file' => 'TopClass.py', 'line' => 23, 'code' => "x = MoreObject(\"345\\n\")\n" },
+							{ 'file' => 'MoreClass.py', 'line' => 58, 'code' => "foo = bar" } ] } )
+			end
+			doc_ct += 1
+		}
+		assert_equal( doc_ct, 3 )
+	end
+
+	def test_spec_root_fold
+		y = YAML::load( <<EOY
+--- >
+This YAML stream contains a single text value.
+The next stream is a log file - a sequence of
+log entries. Adding an entry to the log is a
+simple matter of appending it at the end.
+EOY
+		)
+		assert_equal( y, "This YAML stream contains a single text value. The next stream is a log file - a sequence of log entries. Adding an entry to the log is a simple matter of appending it at the end.\n" )
+	end
+
+	def test_spec_root_mapping
+		y = YAML::load( <<EOY
+# This stream is an example of a top-level mapping.
+invoice : 34843
+date    : 2001-01-23
+total   : 4443.52
+EOY
+		)
+		assert_equal( y, { 'invoice' => 34843, 'date' => Date.new( 2001, 1, 23 ), 'total' => 4443.52 } )
+	end
+
+	def test_spec_oneline_docs
+		doc_ct = 0
+		YAML::load_documents( <<EOY
+# The following is a sequence of three documents.
+# The first contains an empty mapping, the second
+# an empty sequence, and the last an empty string.
+--- {}
+--- [ ]
+--- ''
+EOY
+		) { |doc|
+			case doc_ct
+				when 0
+					assert_equal( doc, {} )
+				when 1
+					assert_equal( doc, [] )
+				when 2
+					assert_equal( doc, '' )
+			end
+			doc_ct += 1
+		}
+		assert_equal( doc_ct, 3 )
+	end
+
+	def test_spec_domain_prefix
+		YAML.add_domain_type( "domain.tld,2002", /(invoice|customer)/ ) { |type, val|
+			if Hash === val
+                scheme, domain, type = type.split( ':', 3 )
+				val['type'] = "domain #{type}"
+				val
+			else
+				raise ArgumentError, "Not a Hash in domain.tld,2002/invoice: " + val.inspect
+			end
+		}
+		assert_parse_only( { "invoice"=> { "customers"=> [ { "given"=>"Chris", "type"=>"domain customer", "family"=>"Dumars" } ], "type"=>"domain invoice" } }, <<EOY
+# 'http://domain.tld,2002/invoice' is some type family.
+invoice: !domain.tld,2002/^invoice
+  # 'seq' is shorthand for 'http://yaml.org/seq'.
+  # This does not effect '^customer' below
+  # because it is does not specify a prefix.
+  customers: !seq
+    # '^customer' is shorthand for the full
+    # notation 'http://domain.tld,2002/customer'.
+    - !^customer
+      given : Chris
+      family : Dumars
+EOY
+		)
+	end
+
+	def test_spec_throwaway
+		assert_parse_only(
+			{"this"=>"contains three lines of text.\nThe third one starts with a\n# character. This isn't a comment.\n"}, <<EOY
+### These are four throwaway comment  ###
+
+### lines (the second line is empty). ###
+this: |   # Comments may trail lines.
+    contains three lines of text.
+    The third one starts with a
+    # character. This isn't a comment.
+
+# These are three throwaway comment
+# lines (the first line is empty).
+EOY
+		)
+	end
+
+	def test_spec_force_implicit
+		# Force implicit
+		assert_parse_only( 
+			{ 'integer' => 12, 'also int' => 12, 'string' => '12' }, <<EOY
+integer: 12
+also int: ! "12"
+string: !str 12
+EOY
+		)
+	end
+
+	def test_spec_private_types
+		doc_ct = 0
+		YAML::parse_documents( <<EOY
+# Private types are per-document.
+---
+pool: !!ball
+   number: 8
+   color: black
+---
+bearing: !!ball
+   material: steel
+EOY
+		) { |doc|
+			case doc_ct
+				when 0
+					assert_equal( doc['pool'].type_id, 'x-private:ball' )
+					assert_equal( doc['pool'].transform.value, { 'number' => 8, 'color' => 'black' } )
+				when 1
+					assert_equal( doc['bearing'].type_id, 'x-private:ball' ) 
+					assert_equal( doc['bearing'].transform.value, { 'material' => 'steel' } )
+			end
+			doc_ct += 1
+		}
+		assert_equal( doc_ct, 2 )
+	end
+
+	def test_spec_url_escaping
+		YAML.add_domain_type( "domain.tld,2002", "type0" ) { |type, val|
+			"ONE: #{val}"
+		}
+		YAML.add_domain_type( "domain.tld,2002", "type%30" ) { |type, val|
+			"TWO: #{val}"
+		}
+		assert_parse_only(
+			{ 'same' => [ 'ONE: value', 'ONE: value' ], 'different' => [ 'TWO: value' ] }, <<EOY
+same:
+  - !domain.tld,2002/type\\x30 value
+  - !domain.tld,2002/type0 value
+different: # As far as the YAML parser is concerned
+  - !domain.tld,2002/type%30 value
+EOY
+		)
+	end
+
+	def test_spec_override_anchor
+		# Override anchor
+		a001 = "The alias node below is a repeated use of this value.\n"
+		assert_parse_only( 
+			{ 'anchor' => 'This scalar has an anchor.', 'override' => a001, 'alias' => a001 }, <<EOY
+anchor : &A001 This scalar has an anchor.
+override : &A001 >
+ The alias node below is a
+ repeated use of this value.
+alias : *A001
+EOY
+		)
+	end
+
+	def test_spec_explicit_families
+		YAML.add_domain_type( "somewhere.com,2002", /^type$/ ) { |type, val|
+			"SOMEWHERE: #{val}"
+		}
+		assert_parse_only(
+			{ 'not-date' => '2002-04-28', 'picture' => "GIF89a\f\000\f\000\204\000\000\377\377\367\365\365\356\351\351\345fff\000\000\000\347\347\347^^^\363\363\355\216\216\216\340\340\340\237\237\237\223\223\223\247\247\247\236\236\236i^\020' \202\n\001\000;", 'hmm' => "SOMEWHERE: family above is short for\nhttp://somewhere.com/type\n" }, <<EOY
+not-date: !str 2002-04-28
+picture: !binary |
+ R0lGODlhDAAMAIQAAP//9/X
+ 17unp5WZmZgAAAOfn515eXv
+ Pz7Y6OjuDg4J+fn5OTk6enp
+ 56enmleECcgggoBADs=
+
+hmm: !somewhere.com,2002/type | 
+ family above is short for
+ http://somewhere.com/type
+EOY
+		)
+	end
+
+	def test_spec_application_family
+		# Testing the clarkevans.com graphs
+		YAML.add_domain_type( "clarkevans.com,2002", 'graph/shape' ) { |type, val|
+			if Array === val
+				val << "Shape Container"
+				val
+			else
+				raise ArgumentError, "Invalid graph of type #{val.class}: " + val.inspect
+			end
+		}
+		one_shape_proc = Proc.new { |type, val|
+			if Hash === val
+                type = type.split( /:/ )
+				val['TYPE'] = "Shape: #{type[2]}"
+				val
+			else
+				raise ArgumentError, "Invalid graph of type #{val.class}: " + val.inspect
+			end
+		}
+		YAML.add_domain_type( "clarkevans.com,2002", 'graph/circle', &one_shape_proc )
+		YAML.add_domain_type( "clarkevans.com,2002", 'graph/line', &one_shape_proc )
+		YAML.add_domain_type( "clarkevans.com,2002", 'graph/text', &one_shape_proc )
+		assert_parse_only(
+			[[{"radius"=>7, "center"=>{"x"=>73, "y"=>129}, "TYPE"=>"Shape: graph/circle"}, {"finish"=>{"x"=>89, "y"=>102}, "TYPE"=>"Shape: graph/line", "start"=>{"x"=>73, "y"=>129}}, {"TYPE"=>"Shape: graph/text", "value"=>"Pretty vector drawing.", "start"=>{"x"=>73, "y"=>129}, "color"=>16772795}, "Shape Container"]], <<EOY
+- !clarkevans.com,2002/graph/^shape
+  - !^circle
+    center: &ORIGIN {x: 73, y: 129}
+    radius: 7
+  - !^line # !clarkevans.com,2002/graph/line
+    start: *ORIGIN
+    finish: { x: 89, y: 102 }
+  - !^text
+    start: *ORIGIN
+    color: 0xFFEEBB
+    value: Pretty vector drawing.
+EOY
+		)
+	end
+
+	def test_spec_float_explicit
+		assert_parse_only(
+			[ 10.0, 10.0, 10.0, 10.0 ], <<EOY
+# All entries in the sequence
+# have the same type and value.
+- 10.0
+- !float 10
+- !yaml.org,2002/^float '10'
+- !yaml.org,2002/float "\\
+  1\\
+  0"
+EOY
+		)
+	end
+
+	def test_spec_builtin_seq
+		# Assortment of sequences
+		assert_parse_only(
+			{ 'empty' => [], 'in-line' => [ 'one', 'two', 'three', 'four', 'five' ],
+			  'nested' => [ 'First item in top sequence', [ 'Subordinate sequence entry' ],
+			  	"A multi-line sequence entry\n", 'Sixth item in top sequence' ] }, <<EOY
+empty: []
+in-line: [ one, two, three # May span lines,
+         , four,           # indentation is
+           five ]          # mostly ignored.
+nested:
+ - First item in top sequence
+ -
+  - Subordinate sequence entry
+ - >
+   A multi-line
+   sequence entry
+ - Sixth item in top sequence
+EOY
+		)
+	end
+
+	def test_spec_builtin_map
+		# Assortment of mappings
+		assert_parse_only( 
+			{ 'empty' => {}, 'in-line' => { 'one' => 1, 'two' => 2 },
+			  'spanning' => { 'one' => 1, 'two' => 2 },
+			  'nested' => { 'first' => 'First entry', 'second' =>
+			  	{ 'key' => 'Subordinate mapping' }, 'third' =>
+				  [ 'Subordinate sequence', {}, 'Previous mapping is empty.',
+					{ 'A key' => 'value pair in a sequence.', 'A second' => 'key:value pair.' },
+					'The previous entry is equal to the following one.',
+					{ 'A key' => 'value pair in a sequence.', 'A second' => 'key:value pair.' } ],
+				  12.0 => 'This key is a float.', "?\n" => 'This key had to be protected.',
+				  "\a" => 'This key had to be escaped.',
+				  "This is a multi-line folded key\n" => "Whose value is also multi-line.\n",
+				  [ 'This key', 'is a sequence' ] => [ 'With a sequence value.' ] } }, <<EOY
+
+empty: {}
+in-line: { one: 1, two: 2 }
+spanning: { one: 1,
+   two: 2 }
+nested:
+ first : First entry
+ second:
+  key: Subordinate mapping
+ third:
+  - Subordinate sequence
+  - { }
+  - Previous mapping is empty.
+  - A key: value pair in a sequence.
+    A second: key:value pair.
+  - The previous entry is equal to the following one.
+  -
+    A key: value pair in a sequence.
+    A second: key:value pair.
+ !float 12 : This key is a float.
+ ? >
+  ?
+ : This key had to be protected.
+ "\\a" : This key had to be escaped.
+ ? >
+   This is a
+   multi-line
+   folded key
+ : >
+   Whose value is
+   also multi-line.
+ ?
+  - This key
+  - is a sequence
+ :
+  - With a sequence value.
+# The following parses correctly,
+# but Ruby 1.6.* fails the comparison!
+# ?
+#  This: key
+#  is a: mapping
+# :
+#  with a: mapping value.
+EOY
+		)
+	end
+
+	def test_spec_builtin_literal_blocks
+		# Assortment of literal scalar blocks
+		assert_parse_only(
+			{"both are equal to"=>"  This has no newline.", "is equal to"=>"The \\ ' \" characters may be\nfreely used. Leading white\n   space is significant.\n\nLine breaks are significant.\nThus this value contains one\nempty line and ends with a\nsingle line break, but does\nnot start with one.\n", "also written as"=>"  This has no newline.", "indented and chomped"=>"  This has no newline.", "empty"=>"", "literal"=>"The \\ ' \" characters may be\nfreely used. Leading white\n   space is significant.\n\nLine breaks are significant.\nThus this value contains one\nempty line and ends with a\nsingle line break, but does\nnot start with one.\n"}, <<EOY
+empty: |
+
+literal: |
+ The \\ ' " characters may be
+ freely used. Leading white
+    space is significant.
+
+ Line breaks are significant.
+ Thus this value contains one
+ empty line and ends with a
+ single line break, but does
+ not start with one.
+
+is equal to: "The \\ \' \\" characters may \\
+ be\\nfreely used. Leading white\\n   space \\
+ is significant.\\n\\nLine breaks are \\
+ significant.\\nThus this value contains \\
+ one\\nempty line and ends with a\\nsingle \\
+ line break, but does\\nnot start with one.\\n"
+
+# Comments may follow a nested
+# scalar value. They must be
+# less indented.
+
+# Modifiers may be combined in any order.
+indented and chomped: |2-
+    This has no newline.
+
+also written as: |-2
+    This has no newline.
+
+both are equal to: "  This has no newline."
+EOY
+		)
+
+		str1 = "This has one newline.\n"
+		str2 = "This has no newline."
+		str3 = "This has two newlines.\n\n"
+		assert_parse_only( 
+			{ 'clipped' => str1, 'same as "clipped" above' => str1, 
+			  'stripped' => str2, 'same as "stripped" above' => str2, 
+			  'kept' => str3, 'same as "kept" above' => str3 }, <<EOY
+clipped: |
+    This has one newline.
+
+same as "clipped" above: "This has one newline.\\n"
+
+stripped: |-
+    This has no newline.
+
+same as "stripped" above: "This has no newline."
+
+kept: |+
+    This has two newlines.
+
+same as "kept" above: "This has two newlines.\\n\\n"
+
+EOY
+		)
+	end
+	
+	def test_spec_span_single_quote
+		assert_parse_only( {"third"=>"a single quote ' must be escaped.", "second"=>"! : \\ etc. can be used freely.", "is same as"=>"this contains six spaces\nand one line break", "empty"=>"", "span"=>"this contains six spaces\nand one line break"}, <<EOY
+empty: ''
+second: '! : \\ etc. can be used freely.'
+third: 'a single quote '' must be escaped.'
+span: 'this contains
+      six spaces
+      
+      and one
+      line break'
+is same as: "this contains six spaces\\nand one line break"
+EOY
+		)
+	end
+
+	def test_spec_span_double_quote
+		assert_parse_only( {"is equal to"=>"this contains four  spaces", "third"=>"a \" or a \\ must be escaped.", "second"=>"! : etc. can be used freely.", "empty"=>"", "fourth"=>"this value ends with an LF.\n", "span"=>"this contains four  spaces"}, <<EOY
+empty: ""
+second: "! : etc. can be used freely."
+third: "a \\\" or a \\\\ must be escaped."
+fourth: "this value ends with an LF.\\n"
+span: "this contains
+  four  \\
+      spaces"
+is equal to: "this contains four  spaces"
+EOY
+		)
+	end
+
+	def test_spec_builtin_time
+		# Time
+		assert_parse_only(
+			{ "space separated" => mktime( 2001, 12, 14, 21, 59, 43, ".10", "-05:00" ), 
+			  "canonical" => mktime( 2001, 12, 15, 2, 59, 43, ".10" ), 
+			  "date (noon UTC)" => Date.new( 2002, 12, 14), 
+			  "valid iso8601" => mktime( 2001, 12, 14, 21, 59, 43, ".10", "-05:00" ) }, <<EOY
+canonical: 2001-12-15T02:59:43.1Z
+valid iso8601: 2001-12-14t21:59:43.10-05:00
+space separated: 2001-12-14 21:59:43.10 -05:00
+date (noon UTC): 2002-12-14
+EOY
+		)
+	end
+
+	def test_spec_builtin_binary
+		arrow_gif = "GIF89a\f\000\f\000\204\000\000\377\377\367\365\365\356\351\351\345fff\000\000\000\347\347\347^^^\363\363\355\216\216\216\340\340\340\237\237\237\223\223\223\247\247\247\236\236\236iiiccc\243\243\243\204\204\204\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371\377\376\371!\376\016Made with GIMP\000,\000\000\000\000\f\000\f\000\000\005,  \216\2010\236\343@\024\350i\020\304\321\212\010\034\317\200M$z\357\3770\205p\270\2601f\r\e\316\001\303\001\036\020' \202\n\001\000;"
+		assert_parse_only(
+			{ 'canonical' => arrow_gif, 'base64' => arrow_gif, 
+			  'description' => "The binary value above is a tiny arrow encoded as a gif image.\n" }, <<EOY
+canonical: !binary "\\
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOf\\
+ n515eXvPz7Y6OjuDg4J+fn5OTk6enp56enmlpaW\\
+ NjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++\\
+ f/++f/++f/++f/++f/++f/++f/++SH+Dk1hZGUg\\
+ d2l0aCBHSU1QACwAAAAADAAMAAAFLCAgjoEwnuN\\
+ AFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84Bww\\
+ EeECcgggoBADs="
+base64: !binary |
+ R0lGODlhDAAMAIQAAP//9/X17unp5WZmZgAAAOf
+ n515eXvPz7Y6OjuDg4J+fn5OTk6enp56enmlpaW
+ NjY6Ojo4SEhP/++f/++f/++f/++f/++f/++f/++
+ f/++f/++f/++f/++f/++f/++f/++SH+Dk1hZGUg
+ d2l0aCBHSU1QACwAAAAADAAMAAAFLCAgjoEwnuN
+ AFOhpEMTRiggcz4BNJHrv/zCFcLiwMWYNG84Bww
+ EeECcgggoBADs=
+description: >
+ The binary value above is a tiny arrow
+ encoded as a gif image.
+EOY
+		)
+	end
+	def test_ruby_regexp
+		# Test Ruby regular expressions
+		assert_to_yaml( 
+			{ 'simple' => /a.b/, 'complex' => /\A"((?:[^"]|\")+)"/,
+			  'case-insensitive' => /George McFly/i }, <<EOY
+case-insensitive: !ruby/regexp "/George McFly/i"
+complex: !ruby/regexp "/\\\\A\\"((?:[^\\"]|\\\\\\")+)\\"/"
+simple: !ruby/regexp "/a.b/"
+EOY
+		)
+	end
+
+	def test_perl_regexp
+		# Parsing perl regular expressions from YAML.pm
+		assert_parse_only(
+			[ /bozo$/i ], <<EOY
+- !perl/regexp:
+  REGEXP: bozo$
+  MODIFIERS: i
+EOY
+		)
+	end
+
+	def test_ruby_struct
+		# Ruby structures
+		book_struct = Struct::new( "BookStruct", :author, :title, :year, :isbn )
+		assert_to_yaml(
+			[ book_struct.new( "Yukihiro Matsumoto", "Ruby in a Nutshell", 2002, "0-596-00214-9" ),
+			  book_struct.new( [ 'Dave Thomas', 'Andy Hunt' ], "The Pickaxe", 2002, 
+				book_struct.new( "This should be the ISBN", "but I have another struct here", 2002, "None" ) 
+			  ) ], <<EOY
+- !ruby/struct:BookStruct
+  author: Yukihiro Matsumoto
+  title: Ruby in a Nutshell
+  year: 2002
+  isbn: 0-596-00214-9
+- !ruby/struct:BookStruct
+  author:
+    - Dave Thomas
+    - Andy Hunt
+  title: The Pickaxe
+  year: 2002
+  isbn: !ruby/struct:BookStruct
+    author: This should be the ISBN
+    title: but I have another struct here
+    year: 2002
+    isbn: None
+EOY
+		)
+	end
+
+	def test_emitting_indicators
+		assert_to_yaml( "Hi, from Object 1. You passed: please, pretty please", <<EOY
+--- "Hi, from Object 1. You passed: please, pretty please"
+EOY
+		)
+	end
+
+	#
+	# Test the YAML::Stream class -- INACTIVE at the moment
+	#
+	def test_document
+		y = YAML::Stream.new( :Indent => 2, :UseVersion => 0 )
+		y.add( 
+			{ 'hi' => 'hello', 'map' =>
+				{ 'good' => 'two' },
+			  'time' => Time.now,
+			  'try' => /^po(.*)$/,
+			  'bye' => 'goodbye'
+			}
+		)
+		y.add( { 'po' => 'nil', 'oper' => 90 } )
+		y.add( { 'hi' => 'wow!', 'bye' => 'wow!' } )
+		y.add( { [ 'Red Socks', 'Boston' ] => [ 'One', 'Two', 'Three' ] } )
+		y.add( [ true, false, false ] )
+	end
+
+    #
+    # Test YPath choices parsing
+    #
+    def test_ypath_parsing
+        assert_path_segments( "/*/((one|three)/name|place)|//place",
+          [ ["*", "one", "name"],
+            ["*", "three", "name"],
+            ["*", "place"],
+            ["/", "place"] ]
+        )
+    end
+
+    #
+    # Tests from Tanaka Akira on [ruby-core]
+    #
+    def test_akira
+
+        # Commas in plain scalars [ruby-core:1066]
+        assert_to_yaml(
+            {"A"=>"A,","B"=>"B"}, <<EOY
+A: "A,"
+B: B
+EOY
+        )
+
+        # Double-quoted keys [ruby-core:1069]
+        assert_to_yaml(
+            {"1"=>2, "2"=>3}, <<EOY
+'1': 2
+"2": 3
+EOY
+        )
+
+        # Anchored mapping [ruby-core:1071]
+        assert_to_yaml(
+            [{"a"=>"b"}] * 2, <<EOY
+- &id001
+  a: b
+- *id001
+EOY
+        )
+
+        # Stress test [ruby-core:1071]
+        # a = []; 1000.times { a << {"a"=>"b", "c"=>"d"} }
+        # YAML::load( a.to_yaml )
+
+    end
+
+    #
+    # Circular references
+    #
+    def test_circular_references
+        a = []; a[0] = a; a[1] = a
+        inspect_str = "[[...], [...]]"
+        assert_equal( inspect_str, YAML::load( a.to_yaml ).inspect )
+    end
+end
+
+if $0 == __FILE__
+  suite = Test::Unit::TestSuite.new('YAML')
+  ObjectSpace.each_object(Class) do |klass|
+    suite << klass.suite if (Test::Unit::TestCase > klass)
+  end
+  require 'test/unit/ui/console/testrunner'
+  Test::Unit::UI::Console::TestRunner.run(suite).passed?
+end