1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
---
title: Fixed length sequences (FixedSeq)
---
Sequences of fixed length can be validated with a series
of different (or the same) types.
```python
from strictyaml import FixedSeq, Str, Map, Int, Float, YAMLValidationError, load
from ensure import Ensure
schema = FixedSeq([Int(), Map({"x": Str()}), Float()])
```
Equivalent list:
```yaml
- 1
- x: 5
- 2.5
```
```python
Ensure(load(yaml_snippet, schema)).equals([1, {"x": "5"}, 2.5, ])
```
Invalid list 1:
```yaml
a: 1
b: 2
c: 3
```
```python
load(yaml_snippet, schema)
```
```python
strictyaml.exceptions.YAMLValidationError:
when expecting a sequence of 3 elements
in "<unicode string>", line 1, column 1:
a: '1'
^ (line: 1)
found a mapping
in "<unicode string>", line 3, column 1:
c: '3'
^ (line: 3)
```
Invalid list 2:
```yaml
- 2
- a
- a:
- 1
- 2
```
```python
load(yaml_snippet, schema)
```
```python
strictyaml.exceptions.YAMLValidationError:
when expecting a mapping
found arbitrary text
in "<unicode string>", line 2, column 1:
- a
^ (line: 2)
```
Invalid list 3:
```yaml
- 1
- a
```
```python
load(yaml_snippet, schema)
```
```python
strictyaml.exceptions.YAMLValidationError:
when expecting a sequence of 3 elements
in "<unicode string>", line 1, column 1:
- '1'
^ (line: 1)
found a sequence of 2 elements
in "<unicode string>", line 2, column 1:
- a
^ (line: 2)
```
!!! note "Executable specification"
Documentation automatically generated from
<a href="https://github.com/crdoconnor/strictyaml/blob/master/hitch/story/fixed-sequence.story">fixed-sequence.story
storytests.
|
