uf-valence-codegen 0.1.2

Valence schema codegen (caller-supplied roots)
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

#![allow(clippy::unwrap_used, clippy::expect_used)]
use std::collections::HashMap;

use crate::codegen::generate_from_schema_file;
use crate::codegen::parser::ParsedTraitDef;

use super::support::write_temp_schema_file;

#[test]
fn test_connection_missing_table_rejected() {
    // Connection with model but no table: should fail codegen
    let schema = r#"
use valence::prelude::*;

valence_schema! {
    Post {
        table: "post",
        version: "0.1.0",
        fields: [
            id: { r#type: FieldType::String, primary_key: true, required: true },
            author: { r#type: FieldType::Record("user"), required: true },
        ],
        connections: [
            author: { model: "my_crate::User" },
        ],
    }
}
"#;

    let path = write_temp_schema_file(schema, "connection_missing_table_schema.rs");
    let result = generate_from_schema_file(&path, &HashMap::<String, ParsedTraitDef>::new());
    assert!(
        result.is_err(),
        "Expected codegen to fail when connection misses table:"
    );
    let err = result.unwrap_err();
    let err_str = err.to_string();
    assert!(
        err_str.contains("missing table") || err_str.contains("table:"),
        "Error should mention missing table: {err_str}"
    );
}
#[test]
fn test_fk_without_connection_rejected() {
    // Record field (FK) but no matching connection in explicit connections block
    let schema = r#"
use valence::prelude::*;

valence_schema! {
    OrphanFk {
        table: "orphan_fk",
        version: "0.1.0",
        fields: [
            id: { r#type: FieldType::String, primary_key: true, required: true },
            owner: { r#type: FieldType::Record("user"), required: true },
        ],
        connections: [
            other: { table: "other", cardinality: HasMany, reverse_field: "parent", on_delete: Cascade, model: "crate::Other" },
        ],
    }
}
"#;

    let path = write_temp_schema_file(schema, "fk_without_connection_schema.rs");
    let result = generate_from_schema_file(&path, &HashMap::<String, ParsedTraitDef>::new());
    assert!(
        result.is_err(),
        "Expected codegen to fail when FK has no matching connection"
    );
    let err = result.unwrap_err();
    let err_str = err.to_string();
    assert!(
        err_str.contains("owner")
            && (err_str.contains("no matching connection") || err_str.contains("connection")),
        "Error should mention owner and connection: {err_str}"
    );
}

#[test]
fn test_hasone_connection_without_fk_rejected() {
    // HasOne connection declared but no Record field (no FK on this table)
    let schema = r#"
use valence::prelude::*;

valence_schema! {
    MissingFk {
        table: "missing_fk",
        version: "0.1.0",
        fields: [
            id: { r#type: FieldType::String, primary_key: true, required: true },
            name: { r#type: FieldType::String, required: true },
        ],
        connections: [
            author: {
                table: "user",
                cardinality: HasOne,
                on_delete: Cascade,
                model: "crate::User",
            },
        ],
    }
}
"#;

    let path = write_temp_schema_file(schema, "hasone_without_fk_schema.rs");
    let result = generate_from_schema_file(&path, &HashMap::<String, ParsedTraitDef>::new());
    assert!(
        result.is_err(),
        "Expected codegen to fail when HasOne connection has no FK field"
    );
    let err = result.unwrap_err();
    let err_str = err.to_string();
    assert!(
        err_str.contains("author") && (err_str.contains("HasOne") || err_str.contains("Record")),
        "Error should mention author and HasOne: {err_str}"
    );
}

#[test]
fn test_valid_fk_and_connection_passes() {
    // Record field with matching connection - should succeed
    let schema = r#"
use valence::prelude::*;

valence_schema! {
    ValidLinked {
        table: "valid_linked",
        version: "0.1.0",
        fields: [
            id: { r#type: FieldType::String, primary_key: true, required: true },
            author: { r#type: FieldType::Record("user"), required: true },
        ],
        connections: [
            author: { table: "user", on_delete: Cascade, model: "crate::User" },
        ],
    }
}
"#;

    let path = write_temp_schema_file(schema, "valid_fk_connection_schema.rs");
    let result = generate_from_schema_file(&path, &HashMap::<String, ParsedTraitDef>::new());
    assert!(
        result.is_ok(),
        "Valid FK+connection should succeed: {:?}",
        result.err()
    );
    let generated = result.unwrap();
    assert!(
        generated.contains("get_author"),
        "Expected get_author method"
    );
}