dampen-core 0.3.2

Core parser, IR, and traits for Dampen UI framework
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
158
159
160
161
162
163

//! Parser tests for TabBar and Tab widgets
//!
//! Tests validation of Tab/TabBar structure and constraints.

use dampen_core::{ir::WidgetKind, parse, parser::error::ParseErrorKind};

#[test]
fn test_parse_valid_tab_bar_with_tabs() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="General" />
            <tab label="Appearance" />
            <tab label="Notifications" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(
        result.is_ok(),
        "Should parse valid TabBar with Tab children"
    );

    let doc = result.unwrap();
    assert_eq!(doc.root.kind, WidgetKind::TabBar);
    assert_eq!(doc.root.children.len(), 3);

    for child in &doc.root.children {
        assert_eq!(child.kind, WidgetKind::Tab);
    }
}

#[test]
fn test_parse_tab_outside_tab_bar_fails() {
    let xml = r#"<dampen version="1.1">
        <column>
            <tab label="Invalid Tab" />
        </column>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_err(), "Tab outside TabBar should fail");

    let err = result.unwrap_err();
    assert_eq!(err.kind, ParseErrorKind::InvalidChild);
    assert!(err.message.contains("Tab must be inside TabBar"));
}

#[test]
fn test_parse_tab_bar_with_non_tab_child_fails() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="Valid Tab" />
            <text value="Invalid Child" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_err(), "TabBar with non-Tab child should fail");

    let err = result.unwrap_err();
    assert_eq!(err.kind, ParseErrorKind::InvalidChild);
    assert!(err.message.contains("TabBar can only contain Tab widgets"));
}

#[test]
fn test_parse_tab_bar_with_icon_attribute() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="Home" icon="home" />
            <tab label="Settings" icon="settings" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_ok(), "Should parse TabBar with icon attributes");

    let doc = result.unwrap();
    let first_tab = &doc.root.children[0];
    assert!(first_tab.attributes.contains_key("icon"));
    assert!(first_tab.attributes.contains_key("label"));
}

#[test]
fn test_parse_tab_bar_with_binding() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="{selected_tab}" on_select="on_tab_selected">
            <tab label="Tab 1" />
            <tab label="Tab 2" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(
        result.is_ok(),
        "Should parse TabBar with binding expression"
    );

    let doc = result.unwrap();
    assert!(doc.root.attributes.contains_key("selected"));
}

#[test]
fn test_parse_empty_tab_bar() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="0" on_select="on_tab_selected">
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(
        result.is_ok(),
        "Should parse empty TabBar (graceful degradation)"
    );

    let doc = result.unwrap();
    assert_eq!(doc.root.children.len(), 0);
}

#[test]
fn test_parse_tab_with_enabled_attribute() {
    let xml = r#"<dampen version="1.1">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="Public" />
            <tab label="Admin" enabled="{is_admin}" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_ok(), "Should parse Tab with enabled attribute");

    let doc = result.unwrap();
    let admin_tab = &doc.root.children[1];
    assert!(admin_tab.attributes.contains_key("enabled"));
}

#[test]
fn test_tab_bar_requires_v1_1() {
    // TabBar requires v1.1, so using v1.0 should fail
    let xml = r#"<dampen version="1.0">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="Tab 1" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_err(), "TabBar should require schema v1.1");

    let err = result.unwrap_err();
    assert_eq!(err.kind, ParseErrorKind::UnsupportedVersion);
}

#[test]
fn test_tab_requires_v1_1() {
    // Tab requires v1.1, so using v1.0 should fail
    let xml = r#"<dampen version="1.0">
        <tab_bar selected="0" on_select="on_tab_selected">
            <tab label="Tab 1" />
        </tab_bar>
    </dampen>"#;

    let result = parse(xml);
    assert!(result.is_err(), "Tab should require schema v1.1");
}