former 2.45.0

A flexible implementation of the Builder pattern supporting nested builders and collection-specific subformers. Simplify the construction of complex objects.
Documentation 
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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157

#![allow(clippy::used_underscore_binding, clippy::all, warnings, missing_docs)]
//! Collection Former Vec Tests
//! 

// #![ allow( dead_code ) ]

use super::*;
#[ allow( unused_imports ) ]
use test_tools::a_id;
#[ allow( unused_imports ) ]
use collection_tools::Vec;
use the_module::VecExt;

/// Tests Vec collection former add operations with various patterns.
#[ test ]
fn add() {
  // expliccit with CollectionFormer

  let got: Vec<String> = the_module::CollectionFormer::<
    String,
    former::VectorDefinition<String, (), Vec<String>, the_module::ReturnStorage>,
  >::new(former::ReturnStorage)
  .add("a")
  .add("b")
  .form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);

  // expliccit with VectorFormer

  let got: Vec<String> =
    the_module::VectorFormer::<String, (), Vec<String>, the_module::ReturnStorage>::new(former::ReturnStorage)
      .add("a")
      .add("b")
      .form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);

  // compact with VectorFormer

  let got: Vec<String> = the_module::VectorFormer::new(former::ReturnStorage).add("a").add("b").form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);

  // with begin_coercing

  let got: Vec<String> =
    the_module::VectorFormer::begin(Some(collection_tools::vec!["a".to_string()]), Some(()), former::ReturnStorage)
      .add("b")
      .form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);

  // with help of ext

  let got: Vec<String> = Vec::former().add("a").add("b").form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);

  //
}

/// Tests Vec collection former replace operation.
#[ test ]
fn replace() {
  let got: Vec<String> = the_module::VectorFormer::new(former::ReturnStorage)
    .add("x")
    .replace(collection_tools::vec!["a".to_string(), "b".to_string()])
    .form();
  let exp = collection_tools::vec!["a".to_string(), "b".to_string(),];
  a_id!(got, exp);
}

/// Tests entity to former conversion and storage traits.
// qqq : make similar test for all collections -- done
#[ test ]
fn entity_to() {
  // qqq : uncomment and make it working -- done
  let got =
    <Vec<i32> as former::EntityToFormer<former::VectorDefinition<i32, (), Vec<i32>, former::ReturnPreformed>>>::Former::new(
      former::ReturnPreformed,
    )
    .add(13)
    .form();
  let exp = collection_tools::vec![13];
  a_id!(got, exp);

  // qqq : uncomment and make it working
  let got = <Vec<i32> as former::EntityToStorage>::Storage::default();
  let exp =
    <Vec<i32> as former::EntityToFormer<former::VectorDefinition<i32, (), Vec<i32>, former::ReturnPreformed>>>::Former::new(
      former::ReturnPreformed,
    )
    .form();
  a_id!(got, exp);

  let got = <Vec<i32> as former::EntityToStorage>::Storage::default();
  let exp = <Vec<i32> as former::EntityToFormer<
    <Vec<i32> as former::EntityToDefinition<(), Vec<i32>, former::ReturnPreformed>>::Definition,
  >>::Former::new(former::ReturnPreformed)
  .form();
  a_id!(got, exp);
}

/// Tests entry to value conversion trait.
#[ test ]
fn entry_to_val() {
  let got = former::EntryToVal::<Vec<i32>>::entry_to_val(13i32);
  let exp = 13i32;
  a_id!(got, exp);
}

/// Tests value to entry conversion trait.
#[ test ]
fn val_to_entry() {
  let got = former::ValToEntry::<Vec<i32>>::val_to_entry(13i32);
  let exp = 13i32;
  a_id!(got, exp);
}

/// Tests subformer collection integration with parent-child relationships.
#[ test ]
fn subformer() {
  /// Parameter description.
  #[ derive( Debug, Default, PartialEq, the_module::Former ) ]
  pub struct Child {
    name: String,
    data: bool,
  }

  /// Parent required for the template.
  #[ derive( Debug, Default, PartialEq, the_module::Former ) ]
  pub struct Parent {
    #[ subform_collection( definition = former::VectorDefinition ) ]
    children: Vec<Child>,
  }

  let got = Parent::former()
    .children()
    .add(Child::former().name("a").form())
    .add(Child::former().name("b").form())
    .end()
    .form();

  let children = collection_tools::vec![
    Child {
      name: "a".to_string(),
      data: false
    },
    Child {
      name: "b".to_string(),
      data: false
    },
  ];
  let exp = Parent { children };
  a_id!(got, exp);
}