motedb 0.8.2

AI-native embedded multimodal database for embodied intelligence (robots, AR glasses, industrial arms).
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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220

//! 边界条件 — Edge Cases & Error Handling Tests
//!
//! 核心原则：极端输入不崩溃，错误优雅处理。

#[path = "common/mod.rs"]
mod common;
use common::*;

#[test]
fn test_empty_table_all_queries() {
    let (_dir, db) = setup_db();
    exec(
        &db,
        "CREATE TABLE t (id INT PRIMARY KEY, name TEXT, val FLOAT)",
    );
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 0);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE name = 'x'"), 0);
    assert_eq!(count_rows(&db, "SELECT DISTINCT name FROM t"), 0);
    assert_eq!(count_rows(&db, "SELECT * FROM t LIMIT 10"), 0);
    assert_eq!(
        count_rows(&db, "SELECT * FROM t ORDER BY val DESC LIMIT 5"),
        0
    );
}

#[test]
fn test_single_row_table() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, name TEXT)");
    exec(&db, "INSERT INTO t VALUES (1, 'only')");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE name = 'only'"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t LIMIT 10"), 1);
    assert_eq!(count_rows(&db, "SELECT DISTINCT name FROM t"), 1);
}

#[test]
fn test_null_values() {
    let (_dir, db) = setup_db();
    exec(
        &db,
        "CREATE TABLE t (id INT PRIMARY KEY, name TEXT, val FLOAT)",
    );
    exec(&db, "INSERT INTO t VALUES (1, NULL, NULL)");
    exec(&db, "INSERT INTO t VALUES (2, 'hello', 3.14)");
    exec(&db, "INSERT INTO t VALUES (3, NULL, 42.0)");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 3);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE name = 'hello'"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE val = 42.0"), 1);
}

#[test]
fn test_empty_string() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, name TEXT)");
    exec(&db, "INSERT INTO t VALUES (1, '')");
    exec(&db, "INSERT INTO t VALUES (2, 'non-empty')");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 2);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE name = ''"), 1);
}

#[test]
fn test_very_long_string() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, data TEXT)");
    let long_str = "x".repeat(10000);
    exec(&db, &format!("INSERT INTO t VALUES (1, '{}')", long_str));
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE data LIKE 'x%'"), 1);
}

#[test]
fn test_max_integer() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, 9223372036854775807)"); // i64::MAX
    exec(&db, "INSERT INTO t VALUES (2, -9223372036854775808)"); // i64::MIN
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 2);
}

#[test]
fn test_negative_integers() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, -100)");
    exec(&db, "INSERT INTO t VALUES (2, -1)");
    exec(&db, "INSERT INTO t VALUES (3, 0)");
    exec(&db, "INSERT INTO t VALUES (4, 100)");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 4);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE val = -100"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE val = 0"), 1);
}

#[test]
fn test_float_precision() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val FLOAT)");
    exec(&db, "INSERT INTO t VALUES (1, 3.141592653589793)");
    exec(&db, "INSERT INTO t VALUES (2, 0.1)");
    exec(&db, "INSERT INTO t VALUES (3, 1e10)");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 3);
}

#[test]
fn test_unicode_text() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, name TEXT)");
    exec(&db, "INSERT INTO t VALUES (1, '你好世界')");
    exec(&db, "INSERT INTO t VALUES (2, '🌱🌍⚡')");
    exec(&db, "INSERT INTO t VALUES (3, 'Mixed混合emoji😀')");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 3);
    assert_eq!(
        count_rows(&db, "SELECT * FROM t WHERE name = '你好世界'"),
        1
    );
}

#[test]
fn test_special_characters_in_text() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, data TEXT)");
    // These should work with proper escaping (doubled quotes).
    exec(&db, "INSERT INTO t VALUES (1, 'has ''quotes''')");
    exec(&db, "INSERT INTO t VALUES (2, 'has spaces')");
    exec(
        &db,
        "INSERT INTO t VALUES (3, 'has-dashes_and.underscores')",
    );
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 3);
}

#[test]
fn test_duplicate_pk_rejected() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, 100)");
    // Duplicate PK should fail (not panic)
    let result = db.execute("INSERT INTO t VALUES (1, 200)");
    assert!(result.is_err(), "Duplicate PK insert should error");
    // Original row unchanged
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
}

#[test]
fn test_delete_nonexistent_row() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, 100)");
    // Deleting non-existent row should not crash
    let _ = db.execute("DELETE FROM t WHERE id = 999");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
}

#[test]
fn test_update_nonexistent_row() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, 100)");
    // Updating non-existent row should not crash
    let _ = db.execute("UPDATE t SET val = 999 WHERE id = 999");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
}

#[test]
fn test_table_create_drop_recreate() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    exec(&db, "INSERT INTO t VALUES (1, 100)");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);

    exec(&db, "DROP TABLE t");
    assert!(db.execute("SELECT * FROM t").is_err());

    // Recreate with different schema
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, name TEXT)");
    exec(&db, "INSERT INTO t VALUES (1, 'reborn')");
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 1);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE name = 'reborn'"), 1);
}

/// Wide table (20 columns) batch INSERT — requires multi-value INSERT parser
/// support for >4 columns. This is a feature gap (not a bug): the parser
/// limits VALUES tuple width. Tracked as a future enhancement.
#[test]
#[ignore = "Feature gap: parser limits VALUES tuple width (not a bug)"]
fn test_many_columns_wide_table() {
    let (_dir, db) = setup_db();
    // 20-column table
    let mut cols = String::from("id INT PRIMARY KEY");
    for i in 1..20 {
        cols.push_str(&format!(", col{} TEXT", i));
    }
    exec(&db, &format!("CREATE TABLE wide ({})", cols));

    let mut vals = String::from("1");
    for i in 1..20 {
        vals.push_str(&format!(", 'val{}'", i));
    }
    exec(&db, &format!("INSERT INTO wide VALUES ({})", vals));
    assert_eq!(count_rows(&db, "SELECT * FROM wide"), 1);
}

#[test]
fn test_batch_insert_consistency() {
    let (_dir, db) = setup_db();
    exec(&db, "CREATE TABLE t (id INT PRIMARY KEY, val INT)");
    // Insert 100 rows via single batch SQL
    let mut sql = String::from("INSERT INTO t VALUES ");
    for i in 1..=100 {
        if i > 1 {
            sql.push(',');
        }
        sql.push_str(&format!("({}, {})", i, i * 2));
    }
    exec(&db, &sql);
    assert_eq!(count_rows(&db, "SELECT * FROM t"), 100);
    // Verify distribution
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE val <= 100"), 50);
    assert_eq!(count_rows(&db, "SELECT * FROM t WHERE val > 100"), 50);
}