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decode_test.go
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//
// Copyright (c) 2011-2019 Canonical Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package yaml_test
import (
"bytes"
"errors"
"fmt"
"io"
"math"
"reflect"
"strings"
"time"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v3"
)
var unmarshalIntTest = 123
var unmarshalTests = []struct {
data string
value interface{}
}{
{
"",
(*struct{})(nil),
},
{
"{}", &struct{}{},
}, {
"v: hi",
map[string]string{"v": "hi"},
}, {
"v: hi", map[string]interface{}{"v": "hi"},
}, {
"v: true",
map[string]string{"v": "true"},
}, {
"v: true",
map[string]interface{}{"v": true},
}, {
"v: 10",
map[string]interface{}{"v": 10},
}, {
"v: 0b10",
map[string]interface{}{"v": 2},
}, {
"v: 0xA",
map[string]interface{}{"v": 10},
}, {
"v: 4294967296",
map[string]int64{"v": 4294967296},
}, {
"v: 0.1",
map[string]interface{}{"v": 0.1},
}, {
"v: .1",
map[string]interface{}{"v": 0.1},
}, {
"v: .Inf",
map[string]interface{}{"v": math.Inf(+1)},
}, {
"v: -.Inf",
map[string]interface{}{"v": math.Inf(-1)},
}, {
"v: -10",
map[string]interface{}{"v": -10},
}, {
"v: -.1",
map[string]interface{}{"v": -0.1},
},
// Simple values.
{
"123",
&unmarshalIntTest,
},
// Floats from spec
{
"canonical: 6.8523e+5",
map[string]interface{}{"canonical": 6.8523e+5},
}, {
"expo: 685.230_15e+03",
map[string]interface{}{"expo": 685.23015e+03},
}, {
"fixed: 685_230.15",
map[string]interface{}{"fixed": 685230.15},
}, {
"neginf: -.inf",
map[string]interface{}{"neginf": math.Inf(-1)},
}, {
"fixed: 685_230.15",
map[string]float64{"fixed": 685230.15},
},
//{"sexa: 190:20:30.15", map[string]interface{}{"sexa": 0}}, // Unsupported
//{"notanum: .NaN", map[string]interface{}{"notanum": math.NaN()}}, // Equality of NaN fails.
// Bools are per 1.2 spec.
{
"canonical: true",
map[string]interface{}{"canonical": true},
}, {
"canonical: false",
map[string]interface{}{"canonical": false},
}, {
"bool: True",
map[string]interface{}{"bool": true},
}, {
"bool: False",
map[string]interface{}{"bool": false},
}, {
"bool: TRUE",
map[string]interface{}{"bool": true},
}, {
"bool: FALSE",
map[string]interface{}{"bool": false},
},
// For backwards compatibility with 1.1, decoding old strings into typed values still works.
{
"option: on",
map[string]bool{"option": true},
}, {
"option: y",
map[string]bool{"option": true},
}, {
"option: Off",
map[string]bool{"option": false},
}, {
"option: No",
map[string]bool{"option": false},
}, {
"option: other",
map[string]bool{},
},
// Ints from spec
{
"canonical: 685230",
map[string]interface{}{"canonical": 685230},
}, {
"decimal: +685_230",
map[string]interface{}{"decimal": 685230},
}, {
"octal: 02472256",
map[string]interface{}{"octal": 685230},
}, {
"octal: -02472256",
map[string]interface{}{"octal": -685230},
}, {
"octal: 0o2472256",
map[string]interface{}{"octal": 685230},
}, {
"octal: -0o2472256",
map[string]interface{}{"octal": -685230},
}, {
"hexa: 0x_0A_74_AE",
map[string]interface{}{"hexa": 685230},
}, {
"bin: 0b1010_0111_0100_1010_1110",
map[string]interface{}{"bin": 685230},
}, {
"bin: -0b101010",
map[string]interface{}{"bin": -42},
}, {
"bin: -0b1000000000000000000000000000000000000000000000000000000000000000",
map[string]interface{}{"bin": -9223372036854775808},
}, {
"decimal: +685_230",
map[string]int{"decimal": 685230},
},
//{"sexa: 190:20:30", map[string]interface{}{"sexa": 0}}, // Unsupported
// Nulls from spec
{
"empty:",
map[string]interface{}{"empty": nil},
}, {
"canonical: ~",
map[string]interface{}{"canonical": nil},
}, {
"english: null",
map[string]interface{}{"english": nil},
}, {
"~: null key",
map[interface{}]string{nil: "null key"},
}, {
"empty:",
map[string]*bool{"empty": nil},
},
// Flow sequence
{
"seq: [A,B]",
map[string]interface{}{"seq": []interface{}{"A", "B"}},
}, {
"seq: [A,B,C,]",
map[string][]string{"seq": []string{"A", "B", "C"}},
}, {
"seq: [A,1,C]",
map[string][]string{"seq": []string{"A", "1", "C"}},
}, {
"seq: [A,1,C]",
map[string][]int{"seq": []int{1}},
}, {
"seq: [A,1,C]",
map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
},
// Block sequence
{
"seq:\n - A\n - B",
map[string]interface{}{"seq": []interface{}{"A", "B"}},
}, {
"seq:\n - A\n - B\n - C",
map[string][]string{"seq": []string{"A", "B", "C"}},
}, {
"seq:\n - A\n - 1\n - C",
map[string][]string{"seq": []string{"A", "1", "C"}},
}, {
"seq:\n - A\n - 1\n - C",
map[string][]int{"seq": []int{1}},
}, {
"seq:\n - A\n - 1\n - C",
map[string]interface{}{"seq": []interface{}{"A", 1, "C"}},
},
// Literal block scalar
{
"scalar: | # Comment\n\n literal\n\n \ttext\n\n",
map[string]string{"scalar": "\nliteral\n\n\ttext\n"},
},
// Folded block scalar
{
"scalar: > # Comment\n\n folded\n line\n \n next\n line\n * one\n * two\n\n last\n line\n\n",
map[string]string{"scalar": "\nfolded line\nnext line\n * one\n * two\n\nlast line\n"},
},
// Map inside interface with no type hints.
{
"a: {b: c}",
map[interface{}]interface{}{"a": map[string]interface{}{"b": "c"}},
},
// Non-string map inside interface with no type hints.
{
"a: {b: c, 1: d}",
map[interface{}]interface{}{"a": map[interface{}]interface{}{"b": "c", 1: "d"}},
},
// Structs and type conversions.
{
"hello: world",
&struct{ Hello string }{"world"},
}, {
"a: {b: c}",
&struct{ A struct{ B string } }{struct{ B string }{"c"}},
}, {
"a: {b: c}",
&struct{ A *struct{ B string } }{&struct{ B string }{"c"}},
}, {
"a: 'null'",
&struct{ A *unmarshalerType }{&unmarshalerType{"null"}},
}, {
"a: {b: c}",
&struct{ A map[string]string }{map[string]string{"b": "c"}},
}, {
"a: {b: c}",
&struct{ A *map[string]string }{&map[string]string{"b": "c"}},
}, {
"a:",
&struct{ A map[string]string }{},
}, {
"a: 1",
&struct{ A int }{1},
}, {
"a: 1",
&struct{ A float64 }{1},
}, {
"a: 1.0",
&struct{ A int }{1},
}, {
"a: 1.0",
&struct{ A uint }{1},
}, {
"a: [1, 2]",
&struct{ A []int }{[]int{1, 2}},
}, {
"a: [1, 2]",
&struct{ A [2]int }{[2]int{1, 2}},
}, {
"a: 1",
&struct{ B int }{0},
}, {
"a: 1",
&struct {
B int "a"
}{1},
}, {
// Some limited backwards compatibility with the 1.1 spec.
"a: YES",
&struct{ A bool }{true},
},
// Some cross type conversions
{
"v: 42",
map[string]uint{"v": 42},
}, {
"v: -42",
map[string]uint{},
}, {
"v: 4294967296",
map[string]uint64{"v": 4294967296},
}, {
"v: -4294967296",
map[string]uint64{},
},
// int
{
"int_max: 2147483647",
map[string]int{"int_max": math.MaxInt32},
},
{
"int_min: -2147483648",
map[string]int{"int_min": math.MinInt32},
},
{
"int_overflow: 9223372036854775808", // math.MaxInt64 + 1
map[string]int{},
},
// int64
{
"int64_max: 9223372036854775807",
map[string]int64{"int64_max": math.MaxInt64},
},
{
"int64_max_base2: 0b111111111111111111111111111111111111111111111111111111111111111",
map[string]int64{"int64_max_base2": math.MaxInt64},
},
{
"int64_min: -9223372036854775808",
map[string]int64{"int64_min": math.MinInt64},
},
{
"int64_neg_base2: -0b111111111111111111111111111111111111111111111111111111111111111",
map[string]int64{"int64_neg_base2": -math.MaxInt64},
},
{
"int64_overflow: 9223372036854775808", // math.MaxInt64 + 1
map[string]int64{},
},
// uint
{
"uint_min: 0",
map[string]uint{"uint_min": 0},
},
{
"uint_max: 4294967295",
map[string]uint{"uint_max": math.MaxUint32},
},
{
"uint_underflow: -1",
map[string]uint{},
},
// uint64
{
"uint64_min: 0",
map[string]uint{"uint64_min": 0},
},
{
"uint64_max: 18446744073709551615",
map[string]uint64{"uint64_max": math.MaxUint64},
},
{
"uint64_max_base2: 0b1111111111111111111111111111111111111111111111111111111111111111",
map[string]uint64{"uint64_max_base2": math.MaxUint64},
},
{
"uint64_maxint64: 9223372036854775807",
map[string]uint64{"uint64_maxint64": math.MaxInt64},
},
{
"uint64_underflow: -1",
map[string]uint64{},
},
// float32
{
"float32_max: 3.40282346638528859811704183484516925440e+38",
map[string]float32{"float32_max": math.MaxFloat32},
},
{
"float32_nonzero: 1.401298464324817070923729583289916131280e-45",
map[string]float32{"float32_nonzero": math.SmallestNonzeroFloat32},
},
{
"float32_maxuint64: 18446744073709551615",
map[string]float32{"float32_maxuint64": float32(math.MaxUint64)},
},
{
"float32_maxuint64+1: 18446744073709551616",
map[string]float32{"float32_maxuint64+1": float32(math.MaxUint64 + 1)},
},
// float64
{
"float64_max: 1.797693134862315708145274237317043567981e+308",
map[string]float64{"float64_max": math.MaxFloat64},
},
{
"float64_nonzero: 4.940656458412465441765687928682213723651e-324",
map[string]float64{"float64_nonzero": math.SmallestNonzeroFloat64},
},
{
"float64_maxuint64: 18446744073709551615",
map[string]float64{"float64_maxuint64": float64(math.MaxUint64)},
},
{
"float64_maxuint64+1: 18446744073709551616",
map[string]float64{"float64_maxuint64+1": float64(math.MaxUint64 + 1)},
},
// Overflow cases.
{
"v: 4294967297",
map[string]int32{},
}, {
"v: 128",
map[string]int8{},
},
// Quoted values.
{
"'1': '\"2\"'",
map[interface{}]interface{}{"1": "\"2\""},
}, {
"v:\n- A\n- 'B\n\n C'\n",
map[string][]string{"v": []string{"A", "B\nC"}},
},
// Explicit tags.
{
"v: !!float '1.1'",
map[string]interface{}{"v": 1.1},
}, {
"v: !!float 0",
map[string]interface{}{"v": float64(0)},
}, {
"v: !!float -1",
map[string]interface{}{"v": float64(-1)},
}, {
"v: !!null ''",
map[string]interface{}{"v": nil},
}, {
"%TAG !y! tag:yaml.org,2002:\n---\nv: !y!int '1'",
map[string]interface{}{"v": 1},
},
// Non-specific tag (Issue #75)
{
"v: ! test",
map[string]interface{}{"v": "test"},
},
// Anchors and aliases.
{
"a: &x 1\nb: &y 2\nc: *x\nd: *y\n",
&struct{ A, B, C, D int }{1, 2, 1, 2},
}, {
"a: &a {c: 1}\nb: *a",
&struct {
A, B struct {
C int
}
}{struct{ C int }{1}, struct{ C int }{1}},
}, {
"a: &a [1, 2]\nb: *a",
&struct{ B []int }{[]int{1, 2}},
},
// Bug #1133337
{
"foo: ''",
map[string]*string{"foo": new(string)},
}, {
"foo: null",
map[string]*string{"foo": nil},
}, {
"foo: null",
map[string]string{"foo": ""},
}, {
"foo: null",
map[string]interface{}{"foo": nil},
},
// Support for ~
{
"foo: ~",
map[string]*string{"foo": nil},
}, {
"foo: ~",
map[string]string{"foo": ""},
}, {
"foo: ~",
map[string]interface{}{"foo": nil},
},
// Ignored field
{
"a: 1\nb: 2\n",
&struct {
A int
B int "-"
}{1, 0},
},
// Bug #1191981
{
"" +
"%YAML 1.1\n" +
"--- !!str\n" +
`"Generic line break (no glyph)\n\` + "\n" +
` Generic line break (glyphed)\n\` + "\n" +
` Line separator\u2028\` + "\n" +
` Paragraph separator\u2029"` + "\n",
"" +
"Generic line break (no glyph)\n" +
"Generic line break (glyphed)\n" +
"Line separator\u2028Paragraph separator\u2029",
},
// Struct inlining
{
"a: 1\nb: 2\nc: 3\n",
&struct {
A int
C inlineB `yaml:",inline"`
}{1, inlineB{2, inlineC{3}}},
},
// Struct inlining as a pointer.
{
"a: 1\nb: 2\nc: 3\n",
&struct {
A int
C *inlineB `yaml:",inline"`
}{1, &inlineB{2, inlineC{3}}},
}, {
"a: 1\n",
&struct {
A int
C *inlineB `yaml:",inline"`
}{1, nil},
}, {
"a: 1\nc: 3\nd: 4\n",
&struct {
A int
C *inlineD `yaml:",inline"`
}{1, &inlineD{&inlineC{3}, 4}},
},
// Map inlining
{
"a: 1\nb: 2\nc: 3\n",
&struct {
A int
C map[string]int `yaml:",inline"`
}{1, map[string]int{"b": 2, "c": 3}},
},
// bug 1243827
{
"a: -b_c",
map[string]interface{}{"a": "-b_c"},
},
{
"a: +b_c",
map[string]interface{}{"a": "+b_c"},
},
{
"a: 50cent_of_dollar",
map[string]interface{}{"a": "50cent_of_dollar"},
},
// issue #295 (allow scalars with colons in flow mappings and sequences)
{
"a: {b: https://github.com/go-yaml/yaml}",
map[string]interface{}{"a": map[string]interface{}{
"b": "https://github.com/go-yaml/yaml",
}},
},
{
"a: [https://github.com/go-yaml/yaml]",
map[string]interface{}{"a": []interface{}{"https://github.com/go-yaml/yaml"}},
},
// Duration
{
"a: 3s",
map[string]time.Duration{"a": 3 * time.Second},
},
// Issue #24.
{
"a: <foo>",
map[string]string{"a": "<foo>"},
},
// Base 60 floats are obsolete and unsupported.
{
"a: 1:1\n",
map[string]string{"a": "1:1"},
},
// Binary data.
{
"a: !!binary gIGC\n",
map[string]string{"a": "\x80\x81\x82"},
}, {
"a: !!binary |\n " + strings.Repeat("kJCQ", 17) + "kJ\n CQ\n",
map[string]string{"a": strings.Repeat("\x90", 54)},
}, {
"a: !!binary |\n " + strings.Repeat("A", 70) + "\n ==\n",
map[string]string{"a": strings.Repeat("\x00", 52)},
}, {
"a: !!binary gIGC\n",
map[string][]byte{"a": {0x80, 0x81, 0x82}},
}, {
"a: !!binary |\n " + strings.Repeat("kJCQ", 17) + "kJ\n CQ\n",
map[string][]byte{"a": bytes.Repeat([]byte{0x90}, 54)},
}, {
"a: !!binary |\n " + strings.Repeat("A", 70) + "\n ==\n",
map[string][]byte{"a": bytes.Repeat([]byte{0x00}, 52)},
},
// Issue #39.
{
"a:\n b:\n c: d\n",
map[string]struct{ B interface{} }{"a": {map[string]interface{}{"c": "d"}}},
},
// Custom map type.
{
"a: {b: c}",
M{"a": M{"b": "c"}},
},
// Support encoding.TextUnmarshaler.
{
"a: 1.2.3.4\n",
map[string]textUnmarshaler{"a": textUnmarshaler{S: "1.2.3.4"}},
},
{
"a: 2015-02-24T18:19:39Z\n",
map[string]textUnmarshaler{"a": textUnmarshaler{"2015-02-24T18:19:39Z"}},
},
// Timestamps
{
// Date only.
"a: 2015-01-01\n",
map[string]time.Time{"a": time.Date(2015, 1, 1, 0, 0, 0, 0, time.UTC)},
},
{
// RFC3339
"a: 2015-02-24T18:19:39.12Z\n",
map[string]time.Time{"a": time.Date(2015, 2, 24, 18, 19, 39, .12e9, time.UTC)},
},
{
// RFC3339 with short dates.
"a: 2015-2-3T3:4:5Z",
map[string]time.Time{"a": time.Date(2015, 2, 3, 3, 4, 5, 0, time.UTC)},
},
{
// ISO8601 lower case t
"a: 2015-02-24t18:19:39Z\n",
map[string]time.Time{"a": time.Date(2015, 2, 24, 18, 19, 39, 0, time.UTC)},
},
{
// space separate, no time zone
"a: 2015-02-24 18:19:39\n",
map[string]time.Time{"a": time.Date(2015, 2, 24, 18, 19, 39, 0, time.UTC)},
},
// Some cases not currently handled. Uncomment these when
// the code is fixed.
// {
// // space separated with time zone
// "a: 2001-12-14 21:59:43.10 -5",
// map[string]interface{}{"a": time.Date(2001, 12, 14, 21, 59, 43, .1e9, time.UTC)},
// },
// {
// // arbitrary whitespace between fields
// "a: 2001-12-14 \t\t \t21:59:43.10 \t Z",
// map[string]interface{}{"a": time.Date(2001, 12, 14, 21, 59, 43, .1e9, time.UTC)},
// },
{
// explicit string tag
"a: !!str 2015-01-01",
map[string]interface{}{"a": "2015-01-01"},
},
{
// explicit timestamp tag on quoted string
"a: !!timestamp \"2015-01-01\"",
map[string]time.Time{"a": time.Date(2015, 1, 1, 0, 0, 0, 0, time.UTC)},
},
{
// explicit timestamp tag on unquoted string
"a: !!timestamp 2015-01-01",
map[string]time.Time{"a": time.Date(2015, 1, 1, 0, 0, 0, 0, time.UTC)},
},
{
// quoted string that's a valid timestamp
"a: \"2015-01-01\"",
map[string]interface{}{"a": "2015-01-01"},
},
{
// explicit timestamp tag into interface.
"a: !!timestamp \"2015-01-01\"",
map[string]interface{}{"a": time.Date(2015, 1, 1, 0, 0, 0, 0, time.UTC)},
},
{
// implicit timestamp tag into interface.
"a: 2015-01-01",
map[string]interface{}{"a": time.Date(2015, 1, 1, 0, 0, 0, 0, time.UTC)},
},
// Encode empty lists as zero-length slices.
{
"a: []",
&struct{ A []int }{[]int{}},
},
// UTF-16-LE
{
"\xff\xfe\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00\n\x00",
M{"ñoño": "very yes"},
},
// UTF-16-LE with surrogate.
{
"\xff\xfe\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00 \x00=\xd8\xd4\xdf\n\x00",
M{"ñoño": "very yes 🟔"},
},
// UTF-16-BE
{
"\xfe\xff\x00\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00\n",
M{"ñoño": "very yes"},
},
// UTF-16-BE with surrogate.
{
"\xfe\xff\x00\xf1\x00o\x00\xf1\x00o\x00:\x00 \x00v\x00e\x00r\x00y\x00 \x00y\x00e\x00s\x00 \xd8=\xdf\xd4\x00\n",
M{"ñoño": "very yes 🟔"},
},
// This *is* in fact a float number, per the spec. #171 was a mistake.
{
"a: 123456e1\n",
M{"a": 123456e1},
}, {
"a: 123456E1\n",
M{"a": 123456e1},
},
// yaml-test-suite 3GZX: Spec Example 7.1. Alias Nodes
{
"First occurrence: &anchor Foo\nSecond occurrence: *anchor\nOverride anchor: &anchor Bar\nReuse anchor: *anchor\n",
map[string]interface{}{
"First occurrence": "Foo",
"Second occurrence": "Foo",
"Override anchor": "Bar",
"Reuse anchor": "Bar",
},
},
// Single document with garbage following it.
{
"---\nhello\n...\n}not yaml",
"hello",
},
// Comment scan exhausting the input buffer (issue #469).
{
"true\n#" + strings.Repeat(" ", 512*3),
"true",
}, {
"true #" + strings.Repeat(" ", 512*3),
"true",
},
// CRLF
{
"a: b\r\nc:\r\n- d\r\n- e\r\n",
map[string]interface{}{
"a": "b",
"c": []interface{}{"d", "e"},
},
},
}
type M map[string]interface{}
type inlineB struct {
B int
inlineC `yaml:",inline"`
}
type inlineC struct {
C int
}
type inlineD struct {
C *inlineC `yaml:",inline"`
D int
}
func (s *S) TestUnmarshal(c *C) {
for i, item := range unmarshalTests {
c.Logf("test %d: %q", i, item.data)
t := reflect.ValueOf(item.value).Type()
value := reflect.New(t)
err := yaml.Unmarshal([]byte(item.data), value.Interface())
if _, ok := err.(*yaml.TypeError); !ok {
c.Assert(err, IsNil)
}
c.Assert(value.Elem().Interface(), DeepEquals, item.value, Commentf("error: %v", err))
}
}
func (s *S) TestUnmarshalFullTimestamp(c *C) {
// Full timestamp in same format as encoded. This is confirmed to be
// properly decoded by Python as a timestamp as well.
var str = "2015-02-24T18:19:39.123456789-03:00"
var t interface{}
err := yaml.Unmarshal([]byte(str), &t)
c.Assert(err, IsNil)
c.Assert(t, Equals, time.Date(2015, 2, 24, 18, 19, 39, 123456789, t.(time.Time).Location()))
c.Assert(t.(time.Time).In(time.UTC), Equals, time.Date(2015, 2, 24, 21, 19, 39, 123456789, time.UTC))
}
func (s *S) TestDecoderSingleDocument(c *C) {
// Test that Decoder.Decode works as expected on
// all the unmarshal tests.
for i, item := range unmarshalTests {
c.Logf("test %d: %q", i, item.data)
if item.data == "" {
// Behaviour differs when there's no YAML.
continue
}
t := reflect.ValueOf(item.value).Type()
value := reflect.New(t)
err := yaml.NewDecoder(strings.NewReader(item.data)).Decode(value.Interface())
if _, ok := err.(*yaml.TypeError); !ok {
c.Assert(err, IsNil)
}
c.Assert(value.Elem().Interface(), DeepEquals, item.value)
}
}
var decoderTests = []struct {
data string
values []interface{}
}{{
"",
nil,
}, {
"a: b",
[]interface{}{
map[string]interface{}{"a": "b"},
},
}, {
"---\na: b\n...\n",
[]interface{}{
map[string]interface{}{"a": "b"},
},
}, {
"---\n'hello'\n...\n---\ngoodbye\n...\n",
[]interface{}{
"hello",
"goodbye",
},
}}
func (s *S) TestDecoder(c *C) {
for i, item := range decoderTests {
c.Logf("test %d: %q", i, item.data)
var values []interface{}
dec := yaml.NewDecoder(strings.NewReader(item.data))
for {
var value interface{}
err := dec.Decode(&value)
if err == io.EOF {
break
}
c.Assert(err, IsNil)
values = append(values, value)
}
c.Assert(values, DeepEquals, item.values)
}
}
type errReader struct{}
func (errReader) Read([]byte) (int, error) {
return 0, errors.New("some read error")
}
func (s *S) TestDecoderReadError(c *C) {
err := yaml.NewDecoder(errReader{}).Decode(&struct{}{})
c.Assert(err, ErrorMatches, `yaml: input error: some read error`)
}
func (s *S) TestUnmarshalNaN(c *C) {
value := map[string]interface{}{}
err := yaml.Unmarshal([]byte("notanum: .NaN"), &value)
c.Assert(err, IsNil)
c.Assert(math.IsNaN(value["notanum"].(float64)), Equals, true)
}
func (s *S) TestUnmarshalDurationInt(c *C) {
// Don't accept plain ints as durations as it's unclear (issue #200).
var d time.Duration
err := yaml.Unmarshal([]byte("123"), &d)
c.Assert(err, ErrorMatches, "(?s).* line 1: cannot unmarshal !!int `123` into time.Duration")
}
var unmarshalErrorTests = []struct {
data, error string
}{
{"v: !!float 'error'", "yaml: cannot decode !!str `error` as a !!float"},
{"v: [A,", "yaml: line 1: did not find expected node content"},
{"v:\n- [A,", "yaml: line 2: did not find expected node content"},
{"a:\n- b: *,", "yaml: line 2: did not find expected alphabetic or numeric character"},
{"a: *b\n", "yaml: unknown anchor 'b' referenced"},
{"a: &a\n b: *a\n", "yaml: anchor 'a' value contains itself"},
{"value: -", "yaml: block sequence entries are not allowed in this context"},
{"a: !!binary ==", "yaml: !!binary value contains invalid base64 data"},
{"{[.]}", `yaml: invalid map key: \[\]interface \{\}\{"\."\}`},
{"{{.}}", `yaml: invalid map key: map\[string]interface \{\}\{".":interface \{\}\(nil\)\}`},
{"b: *a\na: &a {c: 1}", `yaml: unknown anchor 'a' referenced`},
{"%TAG !%79! tag:yaml.org,2002:\n---\nv: !%79!int '1'", "yaml: did not find expected whitespace"},
{"a:\n 1:\nb\n 2:", ".*could not find expected ':'"},
{"a: 1\nb: 2\nc 2\nd: 3\n", "^yaml: line 3: could not find expected ':'$"},
{"#\n-\n{", "yaml: line 3: could not find expected ':'"}, // Issue #665
{"0: [:!00 \xef", "yaml: incomplete UTF-8 octet sequence"}, // Issue #666
{
"a: &a [00,00,00,00,00,00,00,00,00]\n" +
"b: &b [*a,*a,*a,*a,*a,*a,*a,*a,*a]\n" +
"c: &c [*b,*b,*b,*b,*b,*b,*b,*b,*b]\n" +
"d: &d [*c,*c,*c,*c,*c,*c,*c,*c,*c]\n" +
"e: &e [*d,*d,*d,*d,*d,*d,*d,*d,*d]\n" +
"f: &f [*e,*e,*e,*e,*e,*e,*e,*e,*e]\n" +
"g: &g [*f,*f,*f,*f,*f,*f,*f,*f,*f]\n" +
"h: &h [*g,*g,*g,*g,*g,*g,*g,*g,*g]\n" +
"i: &i [*h,*h,*h,*h,*h,*h,*h,*h,*h]\n",
"yaml: document contains excessive aliasing",
},
}
func (s *S) TestUnmarshalErrors(c *C) {
for i, item := range unmarshalErrorTests {
c.Logf("test %d: %q", i, item.data)
var value interface{}
err := yaml.Unmarshal([]byte(item.data), &value)
c.Assert(err, ErrorMatches, item.error, Commentf("Partial unmarshal: %#v", value))
}
}
func (s *S) TestDecoderErrors(c *C) {
for _, item := range unmarshalErrorTests {
var value interface{}
err := yaml.NewDecoder(strings.NewReader(item.data)).Decode(&value)
c.Assert(err, ErrorMatches, item.error, Commentf("Partial unmarshal: %#v", value))
}
}
var unmarshalerTests = []struct {
data, tag string
value interface{}
}{
{"_: {hi: there}", "!!map", map[string]interface{}{"hi": "there"}},
{"_: [1,A]", "!!seq", []interface{}{1, "A"}},
{"_: 10", "!!int", 10},
{"_: null", "!!null", nil},
{`_: BAR!`, "!!str", "BAR!"},