kevy-config 7.0.0

Zero-dependency TOML subset parser and Config schema for kevy.
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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188

//! Token parsing and rendering for [`super::PeerEntry`] and
//! [`super::ScopeEntry`].

mod peer_entry_tests {
    use super::super::*;

    #[test]
    fn parse_one_basic() {
        let p = PeerEntry::parse_one("node-1@10.0.0.1:6004").unwrap();
        assert_eq!(p.node_id, "node-1");
        assert_eq!(p.host, "10.0.0.1");
        assert_eq!(p.port, 6004);
        assert_eq!(p.client_port, None);
    }

    #[test]
    fn parse_one_extended_form_sets_client_port() {
        // `id@host:elect_port:client_port` syntax — added after
        // finding MISDIRECTED replies used the elect_port instead
        // of the main client port.
        let p = PeerEntry::parse_one("node-1@10.0.0.1:6011:6004").unwrap();
        assert_eq!(p.node_id, "node-1");
        assert_eq!(p.host, "10.0.0.1");
        assert_eq!(p.port, 6011);
        assert_eq!(p.client_port, Some(6004));
    }

    #[test]
    fn parse_one_extended_form_dns_host() {
        let p = PeerEntry::parse_one("primary@db-east.local:6011:6004").unwrap();
        assert_eq!(p.host, "db-east.local");
        assert_eq!(p.port, 6011);
        assert_eq!(p.client_port, Some(6004));
    }

    #[test]
    fn parse_one_four_fields_sets_repl_port_base() {
        let p = PeerEntry::parse_one("node-1@10.0.0.1:6011:6004:7100").unwrap();
        assert_eq!((p.port, p.client_port, p.repl_port_base), (6011, Some(6004), Some(7100)));
        assert_eq!(p.to_token(), "node-1@10.0.0.1:6011:6004:7100");
        assert!(PeerEntry::parse_one("node-1@10.0.0.1:1:2:3:4").is_none());
        assert!(PeerEntry::parse_one("node-1@10.0.0.1:6011:6004:x").is_none());
    }

    #[test]
    fn parse_one_dns_host() {
        let p = PeerEntry::parse_one("primary@db-east.local:6105").unwrap();
        assert_eq!(p.host, "db-east.local");
        assert_eq!(p.port, 6105);
    }

    #[test]
    fn parse_one_rejects_empty_id_host_or_bad_port() {
        assert!(PeerEntry::parse_one("@host:6004").is_none());
        assert!(PeerEntry::parse_one("id@:6004").is_none());
        assert!(PeerEntry::parse_one("id@host:NaN").is_none());
        assert!(PeerEntry::parse_one("id@host:99999").is_none()); // u16 overflow
        assert!(PeerEntry::parse_one("no-at-or-colon").is_none());
    }

    #[test]
    fn parse_list_three_peers_trim_tolerated() {
        let s = "a@1.1.1.1:6004, b@1.1.1.2:6004 ,c@1.1.1.3:6004";
        let peers = PeerEntry::parse_list(s).unwrap();
        assert_eq!(peers.len(), 3);
        assert_eq!(peers[1].node_id, "b");
    }

    #[test]
    fn parse_list_trailing_comma_ok() {
        let peers = PeerEntry::parse_list("a@h:1,b@h:2,").unwrap();
        assert_eq!(peers.len(), 2);
    }

    #[test]
    fn parse_list_first_bad_token_errs() {
        let err = PeerEntry::parse_list("a@h:1,bad-token,c@h:3").unwrap_err();
        assert_eq!(err.to_string(), "bad peer token: \"bad-token\"");
    }

    #[test]
    fn parse_list_empty_is_empty() {
        assert_eq!(PeerEntry::parse_list("").unwrap(), Vec::<PeerEntry>::new());
        assert_eq!(PeerEntry::parse_list("  ").unwrap(), Vec::<PeerEntry>::new());
    }

    #[test]
    fn to_token_round_trips() {
        for tok in ["node-1@10.0.0.1:6004", "node-1@10.0.0.1:6011:6004", "p@db-east.local:6105"] {
            let p = PeerEntry::parse_one(tok).unwrap();
            assert_eq!(p.to_token(), tok);
            assert_eq!(PeerEntry::parse_one(&p.to_token()), Some(p));
        }
    }

    #[test]
    fn a_built_peer_is_the_one_its_token_parses_to() {
        let legacy = PeerEntry::new("n1".into(), "10.0.0.1".into(), 6204);
        assert_eq!(legacy.to_token(), "n1@10.0.0.1:6204");
        let full = legacy.clone().with_client_port(6004).with_repl_port_base(7100);
        assert_eq!(full.to_token(), "n1@10.0.0.1:6204:6004:7100");
        assert_eq!(PeerEntry::parse_one(&full.to_token()), Some(full));
        assert_eq!(PeerEntry::parse_one(&legacy.to_token()), Some(legacy));
    }
}

mod scope_entry_tests {
    use super::super::*;

    #[test]
    fn parse_one_writer_only() {
        let s = ScopeEntry::parse_one("app:billing:=embed-billing-1").unwrap();
        assert_eq!(s.prefix, b"app:billing:");
        assert_eq!(s.writer, "embed-billing-1");
        assert_eq!(s.fallback, None);
    }

    #[test]
    fn parse_one_writer_and_fallback() {
        let s = ScopeEntry::parse_one("app:billing:=embed-1|fb-server-eu").unwrap();
        assert_eq!(s.writer, "embed-1");
        assert_eq!(s.fallback.as_deref(), Some("fb-server-eu"));
    }

    #[test]
    fn parse_one_prefix_with_colons() {
        // Colon-heavy prefixes are the common case; only `=` and `,`
        // are reserved.
        let s = ScopeEntry::parse_one("ns:tenant:42:=w").unwrap();
        assert_eq!(s.prefix, b"ns:tenant:42:");
    }

    #[test]
    fn parse_one_rejects_empty_prefix_or_writer() {
        assert!(ScopeEntry::parse_one("=writer").is_none());
        assert!(ScopeEntry::parse_one("prefix=").is_none());
        assert!(ScopeEntry::parse_one("no-equals").is_none());
    }

    #[test]
    fn parse_one_rejects_empty_fallback_side() {
        assert!(ScopeEntry::parse_one("p=writer|").is_none());
        assert!(ScopeEntry::parse_one("p=|fb").is_none());
    }

    #[test]
    fn parse_one_rejects_embedded_comma() {
        // The split-on-comma in `parse_list` makes commas inside a
        // token a parse error — operator probably typo'd
        // `prefix=writer,fallback` instead of `prefix=writer|fallback`.
        assert!(ScopeEntry::parse_one("p=writer,other").is_none());
    }

    #[test]
    fn parse_list_two_scopes() {
        let v = ScopeEntry::parse_list("app:billing:=w-bill|fb, app:auth:=w-auth").unwrap();
        assert_eq!(v.len(), 2);
        assert_eq!(v[0].writer, "w-bill");
        assert_eq!(v[0].fallback.as_deref(), Some("fb"));
        assert_eq!(v[1].writer, "w-auth");
        assert!(v[1].fallback.is_none());
    }

    #[test]
    fn parse_list_first_bad_token_errs() {
        let err = ScopeEntry::parse_list("p1=w1,no-eq,p3=w3").unwrap_err();
        assert_eq!(err.to_string(), "bad scope token: \"no-eq\"");
    }

    #[test]
    fn to_token_round_trips() {
        for tok in ["app:billing:=embed-billing-1", "app:billing:=embed-1|fb-server-eu"] {
            let s = ScopeEntry::parse_one(tok).unwrap();
            assert_eq!(s.to_token(), tok);
            assert_eq!(ScopeEntry::parse_one(&s.to_token()), Some(s));
        }
    }

    #[test]
    fn a_built_scope_is_the_one_its_token_parses_to() {
        let plain = ScopeEntry::new(b"app:".to_vec(), "w1".into());
        assert_eq!(plain.to_token(), "app:=w1");
        let backed = plain.clone().with_fallback("f1".into());
        assert_eq!(backed.to_token(), "app:=w1|f1");
        assert_eq!(ScopeEntry::parse_one("app:=w1|f1"), Some(backed));
        assert_eq!(ScopeEntry::parse_one("app:=w1"), Some(plain));
    }
}