shape-vm 0.3.1

Stack-based bytecode virtual machine for the Shape programming language
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
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267

//! Tests for window and time-related features
//!
//! This module covers:
//! - Window function calls (row_number, rank, etc.)
//! - OVER clauses with PARTITION BY and ORDER BY
//! - Time windows (last, between)
//! - Timeframe specifications
//! - Datetime arithmetic
//! - Compound durations
//! - Window frame clauses
//! - Session windows

use super::{FeatureCategory, FeatureTest};

pub const TESTS: &[FeatureTest] = &[
    // === Window Functions ===
    FeatureTest {
        name: "window_function_row_number",
        covers: &["window_function_call", "over_clause"],
        code: "function test() { return row_number() OVER (ORDER BY x); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "window_function_partition_by",
        covers: &["window_function_call", "over_clause", "partition_clause"],
        code: "function test() { return sum(value) OVER (PARTITION BY category ORDER BY date); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "window_function_rank",
        covers: &["window_function_call", "over_clause"],
        code: "function test() { return rank() OVER (PARTITION BY group ORDER BY score DESC); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    // === Time Windows ===
    FeatureTest {
        name: "time_window_last_days",
        covers: &["time_window", "last_window"],
        code: r#"function test() { return last(5, "days"); }"#,
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "time_window_last_keyword",
        covers: &["last_window", "duration"],
        code: "function test() { return last 1 year; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "time_window_last_bars",
        covers: &["time_window", "last_window"],
        code: r#"function test() { return last(100, "bars"); }"#,
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    // === Between Windows ===
    FeatureTest {
        name: "between_window_dates",
        covers: &["between_window", "datetime_literal"],
        code: r#"function test() { return between @"2020-01-01" and @"2021-01-01"; }"#,
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "between_window_time_refs",
        covers: &["between_window", "time_ref"],
        code: "function test() { return between @today and @tomorrow; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    // === Timeframe Specifications ===
    FeatureTest {
        name: "timeframe_spec_5m",
        covers: &["timeframe_spec", "timeframe", "data_ref"],
        code: "function test() { return data(5m)[0]; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: true,
    },
    FeatureTest {
        name: "timeframe_spec_1h",
        covers: &["timeframe_spec", "timeframe"],
        code: "function test() { return data(1h)[0].close; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: true,
    },
    FeatureTest {
        name: "timeframe_spec_daily",
        covers: &["timeframe_spec", "timeframe"],
        code: "function test() { return data(1d)[-1]; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: true,
    },
    // === Datetime Arithmetic ===
    FeatureTest {
        name: "datetime_arithmetic_add_days",
        covers: &["datetime_arithmetic", "datetime_expr", "duration"],
        code: "function test() { return @today + 5d; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "datetime_arithmetic_sub_hours",
        covers: &["datetime_arithmetic", "datetime_expr", "duration"],
        code: "function test() { return @now - 2h; }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "datetime_arithmetic_complex",
        covers: &["datetime_arithmetic", "datetime_literal", "duration"],
        code: r#"function test() { return @"2020-06-15" + 30d - 1w; }"#,
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    // === Compound Durations ===
    FeatureTest {
        name: "compound_duration_hm",
        covers: &["compound_duration", "duration_unit"],
        code: "function test() { return 5h30m; }",
        function: "test",
        category: FeatureCategory::Literal,
        requires_data: false,
    },
    FeatureTest {
        name: "compound_duration_dh",
        covers: &["compound_duration", "duration_unit"],
        code: "function test() { return 1d12h; }",
        function: "test",
        category: FeatureCategory::Literal,
        requires_data: false,
    },
    FeatureTest {
        name: "compound_duration_hms",
        covers: &["compound_duration", "duration_unit"],
        code: "function test() { return 2h30m45s; }",
        function: "test",
        category: FeatureCategory::Literal,
        requires_data: false,
    },
    // === Window Frame Clauses ===
    FeatureTest {
        name: "window_frame_rows_between",
        covers: &["window_frame_clause", "frame_bound"],
        code: "function test() { return sum(x) OVER (ORDER BY y ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "window_frame_rows_unbounded",
        covers: &["window_frame_clause", "frame_bound"],
        code: "function test() { return sum(x) OVER (ORDER BY y ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "window_frame_range",
        covers: &["window_frame_clause", "frame_bound"],
        code: "function test() { return avg(price) OVER (ORDER BY date RANGE BETWEEN 7d PRECEDING AND CURRENT ROW); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    // === Session Windows ===
    FeatureTest {
        name: "session_window_30m",
        covers: &["session_window", "duration"],
        code: "function test() { return session(30m); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "session_window_with_gap",
        covers: &["session_window", "duration"],
        code: "function test() { return session(5m, gap: 1m); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
    FeatureTest {
        name: "session_window_1h",
        covers: &["session_window", "duration"],
        code: "function test() { return session(1h); }",
        function: "test",
        category: FeatureCategory::Domain,
        requires_data: false,
    },
];

#[cfg(test)]
mod tests {
    use super::*;
    use std::collections::BTreeSet;

    #[test]
    fn test_window_tests_defined() {
        assert!(!TESTS.is_empty());
        // Should have at least 10 tests
        assert!(
            TESTS.len() >= 10,
            "Expected at least 10 window tests, got {}",
            TESTS.len()
        );
    }

    #[test]
    fn test_window_tests_cover_main_rules() {
        let all_rules: BTreeSet<_> = TESTS
            .iter()
            .flat_map(|t| t.covers.iter().copied())
            .collect();

        // Check that key window rules are covered
        assert!(
            all_rules.contains(&"window_function_call"),
            "Missing window_function_call coverage"
        );
        assert!(
            all_rules.contains(&"over_clause"),
            "Missing over_clause coverage"
        );
        assert!(
            all_rules.contains(&"time_window") || all_rules.contains(&"last_window"),
            "Missing time window coverage"
        );
        assert!(
            all_rules.contains(&"between_window"),
            "Missing between_window coverage"
        );
        assert!(
            all_rules.contains(&"datetime_arithmetic"),
            "Missing datetime_arithmetic coverage"
        );
        assert!(
            all_rules.contains(&"compound_duration"),
            "Missing compound_duration coverage"
        );
        assert!(
            all_rules.contains(&"window_frame_clause"),
            "Missing window_frame_clause coverage"
        );
        assert!(
            all_rules.contains(&"session_window"),
            "Missing session_window coverage"
        );
    }
}