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Unified Diff: packages/yaml/test/yaml_test.dart

Issue 1400473008: Roll Observatory packages and add a roll script (Closed) Base URL: git@github.com:dart-lang/observatory_pub_packages.git@master
Patch Set: Created 5 years, 2 months ago
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Index: packages/yaml/test/yaml_test.dart
diff --git a/packages/yaml/test/yaml_test.dart b/packages/yaml/test/yaml_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..c4601d50d23d6693d974880ccb99511532145815
--- /dev/null
+++ b/packages/yaml/test/yaml_test.dart
@@ -0,0 +1,1885 @@
+// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+library yaml.test;
+
+import 'package:test/test.dart';
+import 'package:yaml/yaml.dart';
+
+import 'utils.dart';
+
+main() {
+ var infinity = double.parse("Infinity");
+ var nan = double.parse("NaN");
+
+ group('has a friendly error message for', () {
+ var tabError = predicate((e) =>
+ e.toString().contains('Tab characters are not allowed as indentation'));
+
+ test('using a tab as indentation', () {
+ expect(() => loadYaml('foo:\n\tbar'),
+ throwsA(tabError));
+ });
+
+ test('using a tab not as indentation', () {
+ expect(() => loadYaml('''
+ "foo
+ \tbar"
+ error'''),
+ throwsA(isNot(tabError)));
+ });
+ });
+
+ group("refuses documents that declare version", () {
+ test("1.0", () {
+ expectYamlFails("""
+ %YAML 1.0
+ --- text
+ """);
+ });
+
+ test("1.3", () {
+ expectYamlFails("""
+ %YAML 1.3
+ --- text
+ """);
+ });
+
+ test("2.0", () {
+ expectYamlFails("""
+ %YAML 2.0
+ --- text
+ """);
+ });
+ });
+
+ test("includes source span information", () {
+ var yaml = loadYamlNode(r"""
+- foo:
+ bar
+- 123
+""");
+
+ expect(yaml.span.start.line, equals(0));
+ expect(yaml.span.start.column, equals(0));
+ expect(yaml.span.end.line, equals(3));
+ expect(yaml.span.end.column, equals(0));
+
+ var map = yaml.nodes.first;
+ expect(map.span.start.line, equals(0));
+ expect(map.span.start.column, equals(2));
+ expect(map.span.end.line, equals(2));
+ expect(map.span.end.column, equals(0));
+
+ var key = map.nodes.keys.first;
+ expect(key.span.start.line, equals(0));
+ expect(key.span.start.column, equals(2));
+ expect(key.span.end.line, equals(0));
+ expect(key.span.end.column, equals(5));
+
+ var value = map.nodes.values.first;
+ expect(value.span.start.line, equals(1));
+ expect(value.span.start.column, equals(4));
+ expect(value.span.end.line, equals(1));
+ expect(value.span.end.column, equals(7));
+
+ var scalar = yaml.nodes.last;
+ expect(scalar.span.start.line, equals(2));
+ expect(scalar.span.start.column, equals(2));
+ expect(scalar.span.end.line, equals(2));
+ expect(scalar.span.end.column, equals(5));
+ });
+
+ // The following tests are all taken directly from the YAML spec
+ // (http://www.yaml.org/spec/1.2/spec.html). Most of them are code examples
+ // that are directly included in the spec, but additional tests are derived
+ // from the prose.
+
+ // A few examples from the spec are deliberately excluded, because they test
+ // features that this implementation doesn't intend to support (character
+ // encoding detection and user-defined tags). More tests are commented out,
+ // because they're intended to be supported but not yet implemented.
+
+ // Chapter 2 is just a preview of various Yaml documents. It's probably not
+ // necessary to test its examples, but it would be nice to test everything in
+ // the spec.
+ group('2.1: Collections', () {
+ test('[Example 2.1]', () {
+ expectYamlLoads(["Mark McGwire", "Sammy Sosa", "Ken Griffey"],
+ """
+ - Mark McGwire
+ - Sammy Sosa
+ - Ken Griffey""");
+ });
+
+ test('[Example 2.2]', () {
+ expectYamlLoads({"hr": 65, "avg": 0.278, "rbi": 147},
+ """
+ hr: 65 # Home runs
+ avg: 0.278 # Batting average
+ rbi: 147 # Runs Batted In""");
+ });
+
+ test('[Example 2.3]', () {
+ expectYamlLoads({
+ "american": ["Boston Red Sox", "Detroit Tigers", "New York Yankees"],
+ "national": ["New York Mets", "Chicago Cubs", "Atlanta Braves"],
+ },
+ """
+ american:
+ - Boston Red Sox
+ - Detroit Tigers
+ - New York Yankees
+ national:
+ - New York Mets
+ - Chicago Cubs
+ - Atlanta Braves""");
+ });
+
+ test('[Example 2.4]', () {
+ expectYamlLoads([
+ {"name": "Mark McGwire", "hr": 65, "avg": 0.278},
+ {"name": "Sammy Sosa", "hr": 63, "avg": 0.288},
+ ],
+ """
+ -
+ name: Mark McGwire
+ hr: 65
+ avg: 0.278
+ -
+ name: Sammy Sosa
+ hr: 63
+ avg: 0.288""");
+ });
+
+ test('[Example 2.5]', () {
+ expectYamlLoads([
+ ["name", "hr", "avg"],
+ ["Mark McGwire", 65, 0.278],
+ ["Sammy Sosa", 63, 0.288]
+ ],
+ """
+ - [name , hr, avg ]
+ - [Mark McGwire, 65, 0.278]
+ - [Sammy Sosa , 63, 0.288]""");
+ });
+
+ test('[Example 2.6]', () {
+ expectYamlLoads({
+ "Mark McGwire": {"hr": 65, "avg": 0.278},
+ "Sammy Sosa": {"hr": 63, "avg": 0.288}
+ },
+ """
+ Mark McGwire: {hr: 65, avg: 0.278}
+ Sammy Sosa: {
+ hr: 63,
+ avg: 0.288
+ }""");
+ });
+ });
+
+ group('2.2: Structures', () {
+ test('[Example 2.7]', () {
+ expectYamlStreamLoads([
+ ["Mark McGwire", "Sammy Sosa", "Ken Griffey"],
+ ["Chicago Cubs", "St Louis Cardinals"]
+ ],
+ """
+ # Ranking of 1998 home runs
+ ---
+ - Mark McGwire
+ - Sammy Sosa
+ - Ken Griffey
+
+ # Team ranking
+ ---
+ - Chicago Cubs
+ - St Louis Cardinals""");
+ });
+
+ test('[Example 2.8]', () {
+ expectYamlStreamLoads([
+ {"time": "20:03:20", "player": "Sammy Sosa", "action": "strike (miss)"},
+ {"time": "20:03:47", "player": "Sammy Sosa", "action": "grand slam"},
+ ],
+ """
+ ---
+ time: 20:03:20
+ player: Sammy Sosa
+ action: strike (miss)
+ ...
+ ---
+ time: 20:03:47
+ player: Sammy Sosa
+ action: grand slam
+ ...""");
+ });
+
+ test('[Example 2.9]', () {
+ expectYamlLoads({
+ "hr": ["Mark McGwire", "Sammy Sosa"],
+ "rbi": ["Sammy Sosa", "Ken Griffey"]
+ },
+ """
+ ---
+ hr: # 1998 hr ranking
+ - Mark McGwire
+ - Sammy Sosa
+ rbi:
+ # 1998 rbi ranking
+ - Sammy Sosa
+ - Ken Griffey""");
+ });
+
+ test('[Example 2.10]', () {
+ expectYamlLoads({
+ "hr": ["Mark McGwire", "Sammy Sosa"],
+ "rbi": ["Sammy Sosa", "Ken Griffey"]
+ },
+ """
+ ---
+ hr:
+ - Mark McGwire
+ # Following node labeled SS
+ - &SS Sammy Sosa
+ rbi:
+ - *SS # Subsequent occurrence
+ - Ken Griffey""");
+ });
+
+ test('[Example 2.11]', () {
+ var doc = deepEqualsMap();
+ doc[["Detroit Tigers", "Chicago cubs"]] = ["2001-07-23"];
+ doc[["New York Yankees", "Atlanta Braves"]] =
+ ["2001-07-02", "2001-08-12", "2001-08-14"];
+ expectYamlLoads(doc,
+ """
+ ? - Detroit Tigers
+ - Chicago cubs
+ :
+ - 2001-07-23
+
+ ? [ New York Yankees,
+ Atlanta Braves ]
+ : [ 2001-07-02, 2001-08-12,
+ 2001-08-14 ]""");
+ });
+
+ test('[Example 2.12]', () {
+ expectYamlLoads([
+ {"item": "Super Hoop", "quantity": 1},
+ {"item": "Basketball", "quantity": 4},
+ {"item": "Big Shoes", "quantity": 1},
+ ],
+ """
+ ---
+ # Products purchased
+ - item : Super Hoop
+ quantity: 1
+ - item : Basketball
+ quantity: 4
+ - item : Big Shoes
+ quantity: 1""");
+ });
+ });
+
+ group('2.3: Scalars', () {
+ test('[Example 2.13]', () {
+ expectYamlLoads(
+ cleanUpLiteral(
+ """
+ \\//||\\/||
+ // || ||__"""),
+ """
+ # ASCII Art
+ --- |
+ \\//||\\/||
+ // || ||__""");
+ });
+
+ test('[Example 2.14]', () {
+ expectYamlLoads("Mark McGwire's year was crippled by a knee injury.",
+ """
+ --- >
+ Mark McGwire's
+ year was crippled
+ by a knee injury.""");
+ });
+
+ test('[Example 2.15]', () {
+ expectYamlLoads(
+ cleanUpLiteral(
+ """
+ Sammy Sosa completed another fine season with great stats.
+
+ 63 Home Runs
+ 0.288 Batting Average
+
+ What a year!"""),
+ """
+ >
+ Sammy Sosa completed another
+ fine season with great stats.
+
+ 63 Home Runs
+ 0.288 Batting Average
+
+ What a year!""");
+ });
+
+ test('[Example 2.16]', () {
+ expectYamlLoads({
+ "name": "Mark McGwire",
+ "accomplishment": "Mark set a major league home run record in 1998.\n",
+ "stats": "65 Home Runs\n0.278 Batting Average"
+ },
+ """
+ name: Mark McGwire
+ accomplishment: >
+ Mark set a major league
+ home run record in 1998.
+ stats: |
+ 65 Home Runs
+ 0.278 Batting Average""");
+ });
+
+ test('[Example 2.17]', () {
+ expectYamlLoads({
+ "unicode": "Sosa did fine.\u263A",
+ "control": "\b1998\t1999\t2000\n",
+ "hex esc": "\r\n is \r\n",
+ "single": '"Howdy!" he cried.',
+ "quoted": " # Not a 'comment'.",
+ "tie-fighter": "|\\-*-/|"
+ },
+ """
+ unicode: "Sosa did fine.\\u263A"
+ control: "\\b1998\\t1999\\t2000\\n"
+ hex esc: "\\x0d\\x0a is \\r\\n"
+
+ single: '"Howdy!" he cried.'
+ quoted: ' # Not a ''comment''.'
+ tie-fighter: '|\\-*-/|'""");
+ });
+
+ test('[Example 2.18]', () {
+ expectYamlLoads({
+ "plain": "This unquoted scalar spans many lines.",
+ "quoted": "So does this quoted scalar.\n"
+ },
+ '''
+ plain:
+ This unquoted scalar
+ spans many lines.
+
+ quoted: "So does this
+ quoted scalar.\\n"''');
+ });
+ });
+
+ group('2.4: Tags', () {
+ test('[Example 2.19]', () {
+ expectYamlLoads({
+ "canonical": 12345,
+ "decimal": 12345,
+ "octal": 12,
+ "hexadecimal": 12
+ },
+ """
+ canonical: 12345
+ decimal: +12345
+ octal: 0o14
+ hexadecimal: 0xC""");
+ });
+
+ test('[Example 2.20]', () {
+ expectYamlLoads({
+ "canonical": 1230.15,
+ "exponential": 1230.15,
+ "fixed": 1230.15,
+ "negative infinity": -infinity,
+ "not a number": nan
+ },
+ """
+ canonical: 1.23015e+3
+ exponential: 12.3015e+02
+ fixed: 1230.15
+ negative infinity: -.inf
+ not a number: .NaN""");
+ });
+
+ test('[Example 2.21]', () {
+ var doc = deepEqualsMap({
+ "booleans": [true, false],
+ "string": "012345"
+ });
+ doc[null] = null;
+ expectYamlLoads(doc,
+ """
+ null:
+ booleans: [ true, false ]
+ string: '012345'""");
+ });
+
+ // Examples 2.22 through 2.26 test custom tag URIs, which this
+ // implementation currently doesn't plan to support.
+ });
+
+ group('2.5 Full Length Example', () {
+ // Example 2.27 tests custom tag URIs, which this implementation currently
+ // doesn't plan to support.
+
+ test('[Example 2.28]', () {
+ expectYamlStreamLoads([
+ {
+ "Time": "2001-11-23 15:01:42 -5",
+ "User": "ed",
+ "Warning": "This is an error message for the log file"
+ },
+ {
+ "Time": "2001-11-23 15:02:31 -5",
+ "User": "ed",
+ "Warning": "A slightly different error message."
+ },
+ {
+ "DateTime": "2001-11-23 15:03:17 -5",
+ "User": "ed",
+ "Fatal": 'Unknown variable "bar"',
+ "Stack": [
+ {
+ "file": "TopClass.py",
+ "line": 23,
+ "code": 'x = MoreObject("345\\n")\n'
+ },
+ {"file": "MoreClass.py", "line": 58, "code": "foo = bar"}
+ ]
+ }
+ ],
+ """
+ ---
+ Time: 2001-11-23 15:01:42 -5
+ User: ed
+ Warning:
+ This is an error message
+ for the log file
+ ---
+ Time: 2001-11-23 15:02:31 -5
+ User: ed
+ Warning:
+ A slightly different error
+ message.
+ ---
+ DateTime: 2001-11-23 15:03:17 -5
+ 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""");
+ });
+ });
+
+ // Chapter 3 just talks about the structure of loading and dumping Yaml.
+ // Chapter 4 explains conventions used in the spec.
+
+ // Chapter 5: Characters
+ group('5.1: Character Set', () {
+ expectAllowsCharacter(int charCode) {
+ var char = new String.fromCharCodes([charCode]);
+ expectYamlLoads('The character "$char" is allowed',
+ 'The character "$char" is allowed');
+ }
+
+ expectAllowsQuotedCharacter(int charCode) {
+ var char = new String.fromCharCodes([charCode]);
+ expectYamlLoads("The character '$char' is allowed",
+ '"The character \'$char\' is allowed"');
+ }
+
+ expectDisallowsCharacter(int charCode) {
+ var char = new String.fromCharCodes([charCode]);
+ expectYamlFails('The character "$char" is disallowed');
+ }
+
+ test("doesn't include C0 control characters", () {
+ expectDisallowsCharacter(0x0);
+ expectDisallowsCharacter(0x8);
+ expectDisallowsCharacter(0x1F);
+ });
+
+ test("includes TAB", () => expectAllowsCharacter(0x9));
+ test("doesn't include DEL", () => expectDisallowsCharacter(0x7F));
+
+ test("doesn't include C1 control characters", () {
+ expectDisallowsCharacter(0x80);
+ expectDisallowsCharacter(0x8A);
+ expectDisallowsCharacter(0x9F);
+ });
+
+ test("includes NEL", () => expectAllowsCharacter(0x85));
+
+ group("within quoted strings", () {
+ test("includes DEL", () => expectAllowsQuotedCharacter(0x7F));
+ test("includes C1 control characters", () {
+ expectAllowsQuotedCharacter(0x80);
+ expectAllowsQuotedCharacter(0x8A);
+ expectAllowsQuotedCharacter(0x9F);
+ });
+ });
+ });
+
+ // Skipping section 5.2 (Character Encodings), since at the moment the module
+ // assumes that the client code is providing it with a string of the proper
+ // encoding.
+
+ group('5.3: Indicator Characters', () {
+ test('[Example 5.3]', () {
+ expectYamlLoads({
+ 'sequence': ['one', 'two'],
+ 'mapping': {'sky': 'blue', 'sea': 'green'}
+ },
+ """
+ sequence:
+ - one
+ - two
+ mapping:
+ ? sky
+ : blue
+ sea : green""");
+ });
+
+ test('[Example 5.4]', () {
+ expectYamlLoads({
+ 'sequence': ['one', 'two'],
+ 'mapping': {'sky': 'blue', 'sea': 'green'}
+ },
+ """
+ sequence: [ one, two, ]
+ mapping: { sky: blue, sea: green }""");
+ });
+
+ test('[Example 5.5]', () => expectYamlLoads(null, "# Comment only."));
+
+ // Skipping 5.6 because it uses an undefined tag.
+
+ test('[Example 5.7]', () {
+ expectYamlLoads({
+ 'literal': "some\ntext\n",
+ 'folded': "some text\n"
+ },
+ """
+ literal: |
+ some
+ text
+ folded: >
+ some
+ text
+ """);
+ });
+
+ test('[Example 5.8]', () {
+ expectYamlLoads({
+ 'single': "text",
+ 'double': "text"
+ },
+ """
+ single: 'text'
+ double: "text"
+ """);
+ });
+
+ test('[Example 5.9]', () {
+ expectYamlLoads("text",
+ """
+ %YAML 1.2
+ --- text""");
+ });
+
+ test('[Example 5.10]', () {
+ expectYamlFails("commercial-at: @text");
+ expectYamlFails("commercial-at: `text");
+ });
+ });
+
+ group('5.4: Line Break Characters', () {
+ group('include', () {
+ test('\\n', () => expectYamlLoads([1, 2], indentLiteral("- 1\n- 2")));
+ test('\\r', () => expectYamlLoads([1, 2], "- 1\r- 2"));
+ });
+
+ group('do not include', () {
+ test('form feed', () => expectYamlFails("- 1\x0C- 2"));
+ test('NEL', () => expectYamlLoads(["1\x85- 2"], "- 1\x85- 2"));
+ test('0x2028', () => expectYamlLoads(["1\u2028- 2"], "- 1\u2028- 2"));
+ test('0x2029', () => expectYamlLoads(["1\u2029- 2"], "- 1\u2029- 2"));
+ });
+
+ group('in a scalar context must be normalized', () {
+ test("from \\r to \\n", () =>
+ expectYamlLoads(["foo\nbar"], indentLiteral('- |\n foo\r bar')));
+ test("from \\r\\n to \\n", () =>
+ expectYamlLoads(["foo\nbar"], indentLiteral('- |\n foo\r\n bar')));
+ });
+
+ test('[Example 5.11]', () {
+ expectYamlLoads(
+ cleanUpLiteral("""
+ Line break (no glyph)
+ Line break (glyphed)"""),
+ """
+ |
+ Line break (no glyph)
+ Line break (glyphed)""");
+ });
+ });
+
+ group('5.5: White Space Characters', () {
+ test('[Example 5.12]', () {
+ expectYamlLoads({
+ "quoted": "Quoted \t",
+ "block": 'void main() {\n\tprintf("Hello, world!\\n");\n}\n'
+ },
+ """
+ # Tabs and spaces
+ quoted: "Quoted \t"
+ block:\t|
+ void main() {
+ \tprintf("Hello, world!\\n");
+ }
+ """);
+ });
+ });
+
+ group('5.7: Escaped Characters', () {
+ test('[Example 5.13]', () {
+ expectYamlLoads(
+ "Fun with \x5C "
+ "\x22 \x07 \x08 \x1B \x0C "
+ "\x0A \x0D \x09 \x0B \x00 "
+ "\x20 \xA0 \x85 \u2028 \u2029 "
+ "A A A",
+ '''
+ "Fun with \\\\
+ \\" \\a \\b \\e \\f \\
+ \\n \\r \\t \\v \\0 \\
+ \\ \\_ \\N \\L \\P \\
+ \\x41 \\u0041 \\U00000041"''');
+ });
+
+ test('[Example 5.14]', () {
+ expectYamlFails('Bad escape: "\\c"');
+ expectYamlFails('Bad escape: "\\xq-"');
+ });
+ });
+
+ // Chapter 6: Basic Structures
+ group('6.1: Indentation Spaces', () {
+ test('may not include TAB characters', () {
+ expectYamlFails(
+ """
+ -
+ \t- foo
+ \t- bar""");
+ });
+
+ test('must be the same for all sibling nodes', () {
+ expectYamlFails(
+ """
+ -
+ - foo
+ - bar""");
+ });
+
+ test('may be different for the children of sibling nodes', () {
+ expectYamlLoads([["foo"], ["bar"]],
+ """
+ -
+ - foo
+ -
+ - bar""");
+ });
+
+ test('[Example 6.1]', () {
+ expectYamlLoads({
+ "Not indented": {
+ "By one space": "By four\n spaces\n",
+ "Flow style": [
+ "By two",
+ "Also by two",
+ "Still by two"
+ ]
+ }
+ },
+ """
+ # Leading comment line spaces are
+ # neither content nor indentation.
+
+ Not indented:
+ By one space: |
+ By four
+ spaces
+ Flow style: [ # Leading spaces
+ By two, # in flow style
+ Also by two, # are neither
+ \tStill by two # content nor
+ ] # indentation.""");
+ });
+
+ test('[Example 6.2]', () {
+ expectYamlLoads({'a': ['b', ['c', 'd']]},
+ """
+ ? a
+ : -\tb
+ - -\tc
+ - d""");
+ });
+ });
+
+ group('6.2: Separation Spaces', () {
+ test('[Example 6.3]', () {
+ expectYamlLoads([{'foo': 'bar'}, ['baz', 'baz']],
+ """
+ - foo:\t bar
+ - - baz
+ -\tbaz""");
+ });
+ });
+
+ group('6.3: Line Prefixes', () {
+ test('[Example 6.4]', () {
+ expectYamlLoads({
+ "plain": "text lines",
+ "quoted": "text lines",
+ "block": "text\n \tlines\n"
+ },
+ """
+ plain: text
+ lines
+ quoted: "text
+ \tlines"
+ block: |
+ text
+ \tlines
+ """);
+ });
+ });
+
+ group('6.4: Empty Lines', () {
+ test('[Example 6.5]', () {
+ expectYamlLoads({
+ "Folding": "Empty line\nas a line feed",
+ "Chomping": "Clipped empty lines\n",
+ },
+ """
+ Folding:
+ "Empty line
+ \t
+ as a line feed"
+ Chomping: |
+ Clipped empty lines
+ """);
+ });
+ });
+
+ group('6.5: Line Folding', () {
+ test('[Example 6.6]', () {
+ expectYamlLoads("trimmed\n\n\nas space",
+ """
+ >-
+ trimmed
+
+
+
+ as
+ space
+ """);
+ });
+
+ test('[Example 6.7]', () {
+ expectYamlLoads("foo \n\n\t bar\n\nbaz\n",
+ """
+ >
+ foo
+
+ \t bar
+
+ baz
+ """);
+ });
+
+ test('[Example 6.8]', () {
+ expectYamlLoads(" foo\nbar\nbaz ",
+ '''
+ "
+ foo
+
+ \t bar
+
+ baz
+ "''');
+ });
+ });
+
+ group('6.6: Comments', () {
+ test('must be separated from other tokens by white space characters', () {
+ expectYamlLoads("foo#bar", "foo#bar");
+ expectYamlLoads("foo:#bar", "foo:#bar");
+ expectYamlLoads("-#bar", "-#bar");
+ });
+
+ test('[Example 6.9]', () {
+ expectYamlLoads({'key': 'value'},
+ """
+ key: # Comment
+ value""");
+ });
+
+ group('outside of scalar content', () {
+ test('may appear on a line of their own', () {
+ expectYamlLoads([1, 2],
+ """
+ - 1
+ # Comment
+ - 2""");
+ });
+
+ test('are independent of indentation level', () {
+ expectYamlLoads([[1, 2]],
+ """
+ -
+ - 1
+ # Comment
+ - 2""");
+ });
+
+ test('include lines containing only white space characters', () {
+ expectYamlLoads([1, 2],
+ """
+ - 1
+ \t
+ - 2""");
+ });
+ });
+
+ group('within scalar content', () {
+ test('may not appear on a line of their own', () {
+ expectYamlLoads(["foo\n# not comment\nbar\n"],
+ """
+ - |
+ foo
+ # not comment
+ bar
+ """);
+ });
+
+ test("don't include lines containing only white space characters", () {
+ expectYamlLoads(["foo\n \t \nbar\n"],
+ """
+ - |
+ foo
+ \t
+ bar
+ """);
+ });
+ });
+
+ test('[Example 6.10]', () {
+ expectYamlLoads(null,
+ """
+ # Comment
+
+ """);
+ });
+
+ test('[Example 6.11]', () {
+ expectYamlLoads({'key': 'value'},
+ """
+ key: # Comment
+ # lines
+ value
+ """);
+ });
+
+ group('ending a block scalar header', () {
+ test('may not be followed by additional comment lines', () {
+ expectYamlLoads(["# not comment\nfoo\n"],
+ """
+ - | # comment
+ # not comment
+ foo
+ """);
+ });
+ });
+ });
+
+ group('6.7: Separation Lines', () {
+ test('may not be used within implicit keys', () {
+ expectYamlFails(
+ """
+ [1,
+ 2]: 3""");
+ });
+
+ test('[Example 6.12]', () {
+ var doc = deepEqualsMap();
+ doc[{'first': 'Sammy', 'last': 'Sosa'}] = {
+ 'hr': 65,
+ 'avg': 0.278
+ };
+ expectYamlLoads(doc,
+ """
+ { first: Sammy, last: Sosa }:
+ # Statistics:
+ hr: # Home runs
+ 65
+ avg: # Average
+ 0.278""");
+ });
+ });
+
+ group('6.8: Directives', () {
+ // TODO(nweiz): assert that this produces a warning
+ test('[Example 6.13]', () {
+ expectYamlLoads("foo",
+ '''
+ %FOO bar baz # Should be ignored
+ # with a warning.
+ --- "foo"''');
+ });
+
+ // TODO(nweiz): assert that this produces a warning.
+ test('[Example 6.14]', () {
+ expectYamlLoads("foo",
+ '''
+ %YAML 1.3 # Attempt parsing
+ # with a warning
+ ---
+ "foo"''');
+ });
+
+ test('[Example 6.15]', () {
+ expectYamlFails(
+ """
+ %YAML 1.2
+ %YAML 1.1
+ foo""");
+ });
+
+ test('[Example 6.16]', () {
+ expectYamlLoads("foo",
+ '''
+ %TAG !yaml! tag:yaml.org,2002:
+ ---
+ !yaml!str "foo"''');
+ });
+
+ test('[Example 6.17]', () {
+ expectYamlFails(
+ """
+ %TAG ! !foo
+ %TAG ! !foo
+ bar""");
+ });
+
+ // Examples 6.18 through 6.22 test custom tag URIs, which this
+ // implementation currently doesn't plan to support.
+ });
+
+ group('6.9: Node Properties', () {
+ test('may be specified in any order', () {
+ expectYamlLoads(["foo", "bar"],
+ """
+ - !!str &a1 foo
+ - &a2 !!str bar""");
+ });
+
+ test('[Example 6.23]', () {
+ expectYamlLoads({
+ "foo": "bar",
+ "baz": "foo"
+ },
+ '''
+ !!str &a1 "foo":
+ !!str bar
+ &a2 baz : *a1''');
+ });
+
+ // Example 6.24 tests custom tag URIs, which this implementation currently
+ // doesn't plan to support.
+
+ test('[Example 6.25]', () {
+ expectYamlFails("- !<!> foo");
+ expectYamlFails("- !<\$:?> foo");
+ });
+
+ // Examples 6.26 and 6.27 test custom tag URIs, which this implementation
+ // currently doesn't plan to support.
+
+ test('[Example 6.28]', () {
+ expectYamlLoads(["12", 12, "12"],
+ '''
+ # Assuming conventional resolution:
+ - "12"
+ - 12
+ - ! 12''');
+ });
+
+ test('[Example 6.29]', () {
+ expectYamlLoads({
+ "First occurrence": "Value",
+ "Second occurrence": "Value"
+ },
+ """
+ First occurrence: &anchor Value
+ Second occurrence: *anchor""");
+ });
+ });
+
+ // Chapter 7: Flow Styles
+ group('7.1: Alias Nodes', () {
+ test("must not use an anchor that doesn't previously occur", () {
+ expectYamlFails(
+ """
+ - *anchor
+ - &anchor foo""");
+ });
+
+ test("don't have to exist for a given anchor node", () {
+ expectYamlLoads(["foo"], "- &anchor foo");
+ });
+
+ group('must not specify', () {
+ test('tag properties', () => expectYamlFails(
+ """
+ - &anchor foo
+ - !str *anchor"""));
+
+ test('anchor properties', () => expectYamlFails(
+ """
+ - &anchor foo
+ - &anchor2 *anchor"""));
+
+ test('content', () => expectYamlFails(
+ """
+ - &anchor foo
+ - *anchor bar"""));
+ });
+
+ test('must preserve structural equality', () {
+ var doc = loadYaml(cleanUpLiteral(
+ """
+ anchor: &anchor [a, b, c]
+ alias: *anchor"""));
+ var anchorList = doc['anchor'];
+ var aliasList = doc['alias'];
+ expect(anchorList, same(aliasList));
+
+ doc = loadYaml(cleanUpLiteral(
+ """
+ ? &anchor [a, b, c]
+ : ? *anchor
+ : bar"""));
+ anchorList = doc.keys.first;
+ aliasList = doc[['a', 'b', 'c']].keys.first;
+ expect(anchorList, same(aliasList));
+ });
+
+ test('[Example 7.1]', () {
+ expectYamlLoads({
+ "First occurrence": "Foo",
+ "Second occurrence": "Foo",
+ "Override anchor": "Bar",
+ "Reuse anchor": "Bar",
+ },
+ """
+ First occurrence: &anchor Foo
+ Second occurrence: *anchor
+ Override anchor: &anchor Bar
+ Reuse anchor: *anchor""");
+ });
+ });
+
+ group('7.2: Empty Nodes', () {
+ test('[Example 7.2]', () {
+ expectYamlLoads({
+ "foo": "",
+ "": "bar"
+ },
+ """
+ {
+ foo : !!str,
+ !!str : bar,
+ }""");
+ });
+
+ test('[Example 7.3]', () {
+ var doc = deepEqualsMap({"foo": null});
+ doc[null] = "bar";
+ expectYamlLoads(doc,
+ """
+ {
+ ? foo :,
+ : bar,
+ }""");
+ });
+ });
+
+ group('7.3: Flow Scalar Styles', () {
+ test('[Example 7.4]', () {
+ expectYamlLoads({
+ "implicit block key": [{"implicit flow key": "value"}]
+ },
+ '''
+ "implicit block key" : [
+ "implicit flow key" : value,
+ ]''');
+ });
+
+ test('[Example 7.5]', () {
+ expectYamlLoads(
+ "folded to a space,\nto a line feed, or \t \tnon-content",
+ '''
+ "folded
+ to a space,\t
+
+ to a line feed, or \t\\
+ \\ \tnon-content"''');
+ });
+
+ test('[Example 7.6]', () {
+ expectYamlLoads(" 1st non-empty\n2nd non-empty 3rd non-empty ",
+ '''
+ " 1st non-empty
+
+ 2nd non-empty
+ \t3rd non-empty "''');
+ });
+
+ test('[Example 7.7]', () {
+ expectYamlLoads("here's to \"quotes\"", "'here''s to \"quotes\"'");
+ });
+
+ test('[Example 7.8]', () {
+ expectYamlLoads({
+ "implicit block key": [{"implicit flow key": "value"}]
+ },
+ """
+ 'implicit block key' : [
+ 'implicit flow key' : value,
+ ]""");
+ });
+
+ test('[Example 7.9]', () {
+ expectYamlLoads(" 1st non-empty\n2nd non-empty 3rd non-empty ",
+ """
+ ' 1st non-empty
+
+ 2nd non-empty
+ \t3rd non-empty '""");
+ });
+
+ test('[Example 7.10]', () {
+ expectYamlLoads([
+ "::vector", ": - ()", "Up, up, and away!", -123,
+ "http://example.com/foo#bar",
+ [
+ "::vector", ": - ()", "Up, up, and away!", -123,
+ "http://example.com/foo#bar"
+ ]
+ ],
+ '''
+ # Outside flow collection:
+ - ::vector
+ - ": - ()"
+ - Up, up, and away!
+ - -123
+ - http://example.com/foo#bar
+ # Inside flow collection:
+ - [ ::vector,
+ ": - ()",
+ "Up, up, and away!",
+ -123,
+ http://example.com/foo#bar ]''');
+ });
+
+ test('[Example 7.11]', () {
+ expectYamlLoads({
+ "implicit block key": [{"implicit flow key": "value"}]
+ },
+ """
+ implicit block key : [
+ implicit flow key : value,
+ ]""");
+ });
+
+ test('[Example 7.12]', () {
+ expectYamlLoads("1st non-empty\n2nd non-empty 3rd non-empty",
+ """
+ 1st non-empty
+
+ 2nd non-empty
+ \t3rd non-empty""");
+ });
+ });
+
+ group('7.4: Flow Collection Styles', () {
+ test('[Example 7.13]', () {
+ expectYamlLoads([
+ ['one', 'two'],
+ ['three', 'four']
+ ],
+ """
+ - [ one, two, ]
+ - [three ,four]""");
+ });
+
+ test('[Example 7.14]', () {
+ expectYamlLoads([
+ "double quoted", "single quoted", "plain text", ["nested"],
+ {"single": "pair"}
+ ],
+ """
+ [
+ "double
+ quoted", 'single
+ quoted',
+ plain
+ text, [ nested ],
+ single: pair,
+ ]""");
+ });
+
+ test('[Example 7.15]', () {
+ expectYamlLoads([
+ {"one": "two", "three": "four"},
+ {"five": "six", "seven": "eight"},
+ ],
+ """
+ - { one : two , three: four , }
+ - {five: six,seven : eight}""");
+ });
+
+ test('[Example 7.16]', () {
+ var doc = deepEqualsMap({
+ "explicit": "entry",
+ "implicit": "entry"
+ });
+ doc[null] = null;
+ expectYamlLoads(doc,
+ """
+ {
+ ? explicit: entry,
+ implicit: entry,
+ ?
+ }""");
+ });
+
+ test('[Example 7.17]', () {
+ var doc = deepEqualsMap({
+ "unquoted": "separate",
+ "http://foo.com": null,
+ "omitted value": null
+ });
+ doc[null] = "omitted key";
+ expectYamlLoads(doc,
+ '''
+ {
+ unquoted : "separate",
+ http://foo.com,
+ omitted value:,
+ : omitted key,
+ }''');
+ });
+
+ test('[Example 7.18]', () {
+ expectYamlLoads({
+ "adjacent": "value",
+ "readable": "value",
+ "empty": null
+ },
+ '''
+ {
+ "adjacent":value,
+ "readable": value,
+ "empty":
+ }''');
+ });
+
+ test('[Example 7.19]', () {
+ expectYamlLoads([{"foo": "bar"}],
+ """
+ [
+ foo: bar
+ ]""");
+ });
+
+ test('[Example 7.20]', () {
+ expectYamlLoads([{"foo bar": "baz"}],
+ """
+ [
+ ? foo
+ bar : baz
+ ]""");
+ });
+
+ test('[Example 7.21]', () {
+ var el1 = deepEqualsMap();
+ el1[null] = "empty key entry";
+
+ var el2 = deepEqualsMap();
+ el2[{"JSON": "like"}] = "adjacent";
+
+ expectYamlLoads([[{"YAML": "separate"}], [el1], [el2]],
+ """
+ - [ YAML : separate ]
+ - [ : empty key entry ]
+ - [ {JSON: like}:adjacent ]""");
+ });
+
+ // TODO(nweiz): enable this when we throw an error for long or multiline
+ // keys.
+ // test('[Example 7.22]', () {
+ // expectYamlFails(
+ // """
+ // [ foo
+ // bar: invalid ]""");
+ //
+ // var dotList = new List.filled(1024, ' ');
+ // var dots = dotList.join();
+ // expectYamlFails('[ "foo...$dots...bar": invalid ]');
+ // });
+ });
+
+ group('7.5: Flow Nodes', () {
+ test('[Example 7.23]', () {
+ expectYamlLoads([["a", "b"], {"a": "b"}, "a", "b", "c"],
+ """
+ - [ a, b ]
+ - { a: b }
+ - "a"
+ - 'b'
+ - c""");
+ });
+
+ test('[Example 7.24]', () {
+ expectYamlLoads(["a", "b", "c", "c", ""],
+ """
+ - !!str "a"
+ - 'b'
+ - &anchor "c"
+ - *anchor
+ - !!str""");
+ });
+ });
+
+ // Chapter 8: Block Styles
+ group('8.1: Block Scalar Styles', () {
+ test('[Example 8.1]', () {
+ expectYamlLoads(["literal\n", " folded\n", "keep\n\n", " strip"],
+ """
+ - | # Empty header
+ literal
+ - >1 # Indentation indicator
+ folded
+ - |+ # Chomping indicator
+ keep
+
+ - >1- # Both indicators
+ strip""");
+ });
+
+ test('[Example 8.2]', () {
+ // Note: in the spec, the fourth element in this array is listed as
+ // "\t detected\n", not "\t\ndetected\n". However, I'm reasonably
+ // confident that "\t\ndetected\n" is correct when parsed according to the
+ // rest of the spec.
+ expectYamlLoads([
+ "detected\n",
+ "\n\n# detected\n",
+ " explicit\n",
+ "\t\ndetected\n"
+ ],
+ """
+ - |
+ detected
+ - >
+
+
+ # detected
+ - |1
+ explicit
+ - >
+ \t
+ detected
+ """);
+ });
+
+ test('[Example 8.3]', () {
+ expectYamlFails(
+ """
+ - |
+
+ text""");
+
+ expectYamlFails(
+ """
+ - >
+ text
+ text""");
+
+ expectYamlFails(
+ """
+ - |2
+ text""");
+ });
+
+ test('[Example 8.4]', () {
+ expectYamlLoads({"strip": "text", "clip": "text\n", "keep": "text\n"},
+ """
+ strip: |-
+ text
+ clip: |
+ text
+ keep: |+
+ text
+ """);
+ });
+
+ test('[Example 8.5]', () {
+ // This example in the spec only includes a single newline in the "keep"
+ // value, but as far as I can tell that's not how it's supposed to be
+ // parsed according to the rest of the spec.
+ expectYamlLoads({
+ "strip": "# text",
+ "clip": "# text\n",
+ "keep": "# text\n\n"
+ },
+ """
+ # Strip
+ # Comments:
+ strip: |-
+ # text
+
+ # Clip
+ # comments:
+
+ clip: |
+ # text
+
+ # Keep
+ # comments:
+
+ keep: |+
+ # text
+
+ # Trail
+ # comments.
+ """);
+ });
+
+ test('[Example 8.6]', () {
+ expectYamlLoads({"strip": "", "clip": "", "keep": "\n"},
+ """
+ strip: >-
+
+ clip: >
+
+ keep: |+
+
+ """);
+ });
+
+ test('[Example 8.7]', () {
+ expectYamlLoads("literal\n\ttext\n",
+ """
+ |
+ literal
+ \ttext
+ """);
+ });
+
+ test('[Example 8.8]', () {
+ expectYamlLoads("\n\nliteral\n \n\ntext\n",
+ """
+ |
+
+
+ literal
+
+
+ text
+
+ # Comment""");
+ });
+
+ test('[Example 8.9]', () {
+ expectYamlLoads("folded text\n",
+ """
+ >
+ folded
+ text
+ """);
+ });
+
+ test('[Example 8.10]', () {
+ expectYamlLoads(
+ cleanUpLiteral("""
+
+ folded line
+ next line
+ * bullet
+
+ * list
+ * lines
+
+ last line
+ """),
+ """
+ >
+
+ folded
+ line
+
+ next
+ line
+ * bullet
+
+ * list
+ * lines
+
+ last
+ line
+
+ # Comment""");
+ });
+
+ // Examples 8.11 through 8.13 are duplicates of 8.10.
+ });
+
+ group('8.2: Block Collection Styles', () {
+ test('[Example 8.14]', () {
+ expectYamlLoads({"block sequence": ["one", {"two": "three"}]},
+ """
+ block sequence:
+ - one
+ - two : three""");
+ });
+
+ test('[Example 8.15]', () {
+ expectYamlLoads([
+ null, "block node\n", ["one", "two"], {"one": "two"}
+ ],
+ """
+ - # Empty
+ - |
+ block node
+ - - one # Compact
+ - two # sequence
+ - one: two # Compact mapping""");
+ });
+
+ test('[Example 8.16]', () {
+ expectYamlLoads({"block mapping": {"key": "value"}},
+ """
+ block mapping:
+ key: value""");
+ });
+
+ test('[Example 8.17]', () {
+ expectYamlLoads({
+ "explicit key": null,
+ "block key\n": ["one", "two"]
+ },
+ """
+ ? explicit key # Empty value
+ ? |
+ block key
+ : - one # Explicit compact
+ - two # block value""");
+ });
+
+ test('[Example 8.18]', () {
+ var doc = deepEqualsMap({
+ 'plain key': 'in-line value',
+ "quoted key": ["entry"]
+ });
+ doc[null] = null;
+ expectYamlLoads(doc,
+ '''
+ plain key: in-line value
+ : # Both empty
+ "quoted key":
+ - entry''');
+ });
+
+ test('[Example 8.19]', () {
+ var el = deepEqualsMap();
+ el[{'earth': 'blue'}] = {'moon': 'white'};
+ expectYamlLoads([{'sun': 'yellow'}, el],
+ """
+ - sun: yellow
+ - ? earth: blue
+ : moon: white""");
+ });
+
+ test('[Example 8.20]', () {
+ expectYamlLoads(["flow in block", "Block scalar\n", {"foo": "bar"}],
+ '''
+ -
+ "flow in block"
+ - >
+ Block scalar
+ - !!map # Block collection
+ foo : bar''');
+ });
+
+ test('[Example 8.21]', () {
+ // The spec doesn't include a newline after "value" in the parsed map, but
+ // the block scalar is clipped so it should be retained.
+ expectYamlLoads({"literal": "value\n", "folded": "value"},
+ """
+ literal: |2
+ value
+ folded:
+ !!str
+ >1
+ value""");
+ });
+
+ test('[Example 8.22]', () {
+ expectYamlLoads({
+ "sequence": ["entry", ["nested"]],
+ "mapping": {"foo": "bar"}
+ },
+ """
+ sequence: !!seq
+ - entry
+ - !!seq
+ - nested
+ mapping: !!map
+ foo: bar""");
+ });
+ });
+
+ // Chapter 9: YAML Character Stream
+ group('9.1: Documents', () {
+ // Example 9.1 tests the use of a BOM, which this implementation currently
+ // doesn't plan to support.
+
+ test('[Example 9.2]', () {
+ expectYamlLoads("Document",
+ """
+ %YAML 1.2
+ ---
+ Document
+ ... # Suffix""");
+ });
+
+ test('[Example 9.3]', () {
+ // The spec example indicates that the comment after "%!PS-Adobe-2.0"
+ // should be stripped, which would imply that that line is not part of the
+ // literal defined by the "|". The rest of the spec is ambiguous on this
+ // point; the allowable indentation for non-indented literal content is
+ // not clearly explained. However, if both the "|" and the text were
+ // indented the same amount, the text would be part of the literal, which
+ // implies that the spec's parse of this document is incorrect.
+ expectYamlStreamLoads(
+ ["Bare document", "%!PS-Adobe-2.0 # Not the first line\n"],
+ """
+ Bare
+ document
+ ...
+ # No document
+ ...
+ |
+ %!PS-Adobe-2.0 # Not the first line
+ """);
+ });
+
+ test('[Example 9.4]', () {
+ expectYamlStreamLoads([{"matches %": 20}, null],
+ """
+ ---
+ { matches
+ % : 20 }
+ ...
+ ---
+ # Empty
+ ...""");
+ });
+
+ test('[Example 9.5]', () {
+ // The spec doesn't have a space between the second
+ // "YAML" and "1.2", but this seems to be a typo.
+ expectYamlStreamLoads(["%!PS-Adobe-2.0\n", null],
+ """
+ %YAML 1.2
+ --- |
+ %!PS-Adobe-2.0
+ ...
+ %YAML 1.2
+ ---
+ # Empty
+ ...""");
+ });
+
+ test('[Example 9.6]', () {
+ expectYamlStreamLoads(["Document", null, {"matches %": 20}],
+ """
+ Document
+ ---
+ # Empty
+ ...
+ %YAML 1.2
+ ---
+ matches %: 20""");
+ });
+ });
+
+ // Chapter 10: Recommended Schemas
+ group('10.1: Failsafe Schema', () {
+ test('[Example 10.1]', () {
+ expectYamlLoads({
+ "Block style": {
+ "Clark": "Evans",
+ "Ingy": "döt Net",
+ "Oren": "Ben-Kiki"
+ },
+ "Flow style": {
+ "Clark": "Evans",
+ "Ingy": "döt Net",
+ "Oren": "Ben-Kiki"
+ }
+ },
+ """
+ Block style: !!map
+ Clark : Evans
+ Ingy : döt Net
+ Oren : Ben-Kiki
+
+ Flow style: !!map { Clark: Evans, Ingy: döt Net, Oren: Ben-Kiki }""");
+ });
+
+ test('[Example 10.2]', () {
+ expectYamlLoads({
+ "Block style": ["Clark Evans", "Ingy döt Net", "Oren Ben-Kiki"],
+ "Flow style": ["Clark Evans", "Ingy döt Net", "Oren Ben-Kiki"]
+ },
+ """
+ Block style: !!seq
+ - Clark Evans
+ - Ingy döt Net
+ - Oren Ben-Kiki
+
+ Flow style: !!seq [ Clark Evans, Ingy döt Net, Oren Ben-Kiki ]""");
+ });
+
+ test('[Example 10.3]', () {
+ expectYamlLoads({
+ "Block style": "String: just a theory.",
+ "Flow style": "String: just a theory."
+ },
+ '''
+ Block style: !!str |-
+ String: just a theory.
+
+ Flow style: !!str "String: just a theory."''');
+ });
+ });
+
+ group('10.2: JSON Schema', () {
+ // test('[Example 10.4]', () {
+ // var doc = deepEqualsMap({"key with null value": null});
+ // doc[null] = "value for null key";
+ // expectYamlStreamLoads(doc,
+ // """
+ // !!null null: value for null key
+ // key with null value: !!null null""");
+ // });
+
+ // test('[Example 10.5]', () {
+ // expectYamlStreamLoads({
+ // "YAML is a superset of JSON": true,
+ // "Pluto is a planet": false
+ // },
+ // """
+ // YAML is a superset of JSON: !!bool true
+ // Pluto is a planet: !!bool false""");
+ // });
+
+ // test('[Example 10.6]', () {
+ // expectYamlStreamLoads({
+ // "negative": -12,
+ // "zero": 0,
+ // "positive": 34
+ // },
+ // """
+ // negative: !!int -12
+ // zero: !!int 0
+ // positive: !!int 34""");
+ // });
+
+ // test('[Example 10.7]', () {
+ // expectYamlStreamLoads({
+ // "negative": -1,
+ // "zero": 0,
+ // "positive": 23000,
+ // "infinity": infinity,
+ // "not a number": nan
+ // },
+ // """
+ // negative: !!float -1
+ // zero: !!float 0
+ // positive: !!float 2.3e4
+ // infinity: !!float .inf
+ // not a number: !!float .nan""");
+ // });
+
+ // test('[Example 10.8]', () {
+ // expectYamlStreamLoads({
+ // "A null": null,
+ // "Booleans": [true, false],
+ // "Integers": [0, -0, 3, -19],
+ // "Floats": [0, 0, 12000, -200000],
+ // // Despite being invalid in the JSON schema, these values are valid in
+ // // the core schema which this implementation supports.
+ // "Invalid": [ true, null, 7, 0x3A, 12.3]
+ // },
+ // """
+ // A null: null
+ // Booleans: [ true, false ]
+ // Integers: [ 0, -0, 3, -19 ]
+ // Floats: [ 0., -0.0, 12e03, -2E+05 ]
+ // Invalid: [ True, Null, 0o7, 0x3A, +12.3 ]""");
+ // });
+ });
+
+ group('10.3: Core Schema', () {
+ test('[Example 10.9]', () {
+ expectYamlLoads({
+ "A null": null,
+ "Also a null": null,
+ "Not a null": "",
+ "Booleans": [true, true, false, false],
+ "Integers": [0, 7, 0x3A, -19],
+ "Floats": [0, 0, 0.5, 12000, -200000],
+ "Also floats": [infinity, -infinity, infinity, nan]
+ },
+ '''
+ A null: null
+ Also a null: # Empty
+ Not a null: ""
+ Booleans: [ true, True, false, FALSE ]
+ Integers: [ 0, 0o7, 0x3A, -19 ]
+ Floats: [ 0., -0.0, .5, +12e03, -2E+05 ]
+ Also floats: [ .inf, -.Inf, +.INF, .NAN ]''');
+ });
+ });
+}
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