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| 1 | +"""Tests for common event memory data types, formatting, and unification.""" |
| 2 | + |
| 3 | +from datetime import UTC, datetime, timedelta, timezone |
| 4 | +from uuid import uuid4 |
| 5 | + |
| 6 | +import pytest |
| 7 | + |
| 8 | +from memmachine_common.api.event_memory.data_types import ( |
| 9 | + EventMemoryCitationContext, |
| 10 | + EventMemoryFormatOptions, |
| 11 | + EventMemoryMessageContext, |
| 12 | + EventMemoryQueryResult, |
| 13 | + EventMemoryScoredSegmentContext, |
| 14 | + EventMemorySegment, |
| 15 | + EventMemoryText, |
| 16 | + format_segment_context, |
| 17 | +) |
| 18 | + |
| 19 | + |
| 20 | +def _make_segment( |
| 21 | + *, |
| 22 | + event_uuid=None, |
| 23 | + index=0, |
| 24 | + offset=0, |
| 25 | + timestamp=None, |
| 26 | + text="hello", |
| 27 | + context=None, |
| 28 | + properties=None, |
| 29 | +): |
| 30 | + return EventMemorySegment( |
| 31 | + uuid=uuid4(), |
| 32 | + event_uuid=event_uuid or uuid4(), |
| 33 | + index=index, |
| 34 | + offset=offset, |
| 35 | + timestamp=timestamp or datetime(2026, 1, 15, 10, 30, tzinfo=UTC), |
| 36 | + context=context, |
| 37 | + block=EventMemoryText(text=text), |
| 38 | + properties=properties or {}, |
| 39 | + ) |
| 40 | + |
| 41 | + |
| 42 | +class TestSegmentRoundTrip: |
| 43 | + def test_serialize_deserialize(self): |
| 44 | + seg = _make_segment( |
| 45 | + properties={"count": 42, "ts": datetime(2026, 1, 1, tzinfo=UTC)}, |
| 46 | + ) |
| 47 | + seg2 = EventMemorySegment.model_validate(seg.model_dump(mode="json")) |
| 48 | + assert seg.uuid == seg2.uuid |
| 49 | + assert seg.properties == seg2.properties |
| 50 | + for key in seg.properties: |
| 51 | + assert type(seg.properties[key]) is type(seg2.properties[key]) |
| 52 | + |
| 53 | + def test_empty_properties(self): |
| 54 | + seg = _make_segment() |
| 55 | + seg2 = EventMemorySegment.model_validate(seg.model_dump(mode="json")) |
| 56 | + assert seg2.properties == {} |
| 57 | + |
| 58 | + |
| 59 | +class TestFormatSegmentContext: |
| 60 | + def test_message_context(self): |
| 61 | + seg = _make_segment( |
| 62 | + context=EventMemoryMessageContext(source="alice"), |
| 63 | + text="hi there", |
| 64 | + ) |
| 65 | + result = format_segment_context([seg]) |
| 66 | + assert "alice:" in result |
| 67 | + assert "hi there" in result |
| 68 | + |
| 69 | + def test_citation_context(self): |
| 70 | + seg = _make_segment( |
| 71 | + context=EventMemoryCitationContext(source="doc.pdf"), |
| 72 | + text="some quote", |
| 73 | + ) |
| 74 | + result = format_segment_context([seg]) |
| 75 | + assert "From 'doc.pdf':" in result |
| 76 | + assert "some quote" in result |
| 77 | + |
| 78 | + def test_no_context(self): |
| 79 | + seg = _make_segment(text="bare text") |
| 80 | + result = format_segment_context([seg]) |
| 81 | + assert "bare text" in result |
| 82 | + |
| 83 | + def test_continuation_same_event_and_index(self): |
| 84 | + event_uuid = uuid4() |
| 85 | + seg1 = _make_segment(event_uuid=event_uuid, index=0, offset=0, text="part1") |
| 86 | + seg2 = _make_segment(event_uuid=event_uuid, index=0, offset=1, text="part2") |
| 87 | + result = format_segment_context([seg1, seg2]) |
| 88 | + assert "part1part2" in result |
| 89 | + |
| 90 | + def test_timezone_formatting(self): |
| 91 | + tz = timezone(timedelta(hours=9)) |
| 92 | + seg = _make_segment( |
| 93 | + timestamp=datetime(2026, 1, 15, 10, 30, tzinfo=UTC), |
| 94 | + text="test", |
| 95 | + ) |
| 96 | + opts = EventMemoryFormatOptions(timezone=tz, show_timezone_label=True) |
| 97 | + result = format_segment_context([seg], format_options=opts) |
| 98 | + assert "UTC+09:00" in result |
| 99 | + |
| 100 | + def test_no_timezone_label(self): |
| 101 | + seg = _make_segment(text="test") |
| 102 | + opts = EventMemoryFormatOptions(show_timezone_label=False) |
| 103 | + result = format_segment_context([seg], format_options=opts) |
| 104 | + assert "UTC" not in result |
| 105 | + |
| 106 | + |
| 107 | +class TestScoredSegmentContextToString: |
| 108 | + def test_to_string(self): |
| 109 | + seg = _make_segment( |
| 110 | + context=EventMemoryMessageContext(source="bob"), |
| 111 | + text="hey", |
| 112 | + ) |
| 113 | + scored = EventMemoryScoredSegmentContext( |
| 114 | + seed_segment_uuid=seg.uuid, |
| 115 | + score=0.9, |
| 116 | + segments=[seg], |
| 117 | + ) |
| 118 | + result = scored.to_string() |
| 119 | + assert "bob:" in result |
| 120 | + assert "hey" in result |
| 121 | + |
| 122 | + |
| 123 | +class TestBuildContext: |
| 124 | + def _make_scored_context(self, num_segments=3, score=0.5): |
| 125 | + seed_uuid = uuid4() |
| 126 | + event_uuid = uuid4() |
| 127 | + segments = [ |
| 128 | + _make_segment(event_uuid=event_uuid, index=i, text=f"seg{i}") |
| 129 | + for i in range(num_segments) |
| 130 | + ] |
| 131 | + segments[0] = EventMemorySegment( |
| 132 | + uuid=seed_uuid, |
| 133 | + event_uuid=event_uuid, |
| 134 | + index=0, |
| 135 | + offset=0, |
| 136 | + timestamp=datetime(2026, 1, 15, 10, 30, tzinfo=UTC), |
| 137 | + block=EventMemoryText(text="seed"), |
| 138 | + properties={}, |
| 139 | + ) |
| 140 | + return EventMemoryScoredSegmentContext( |
| 141 | + seed_segment_uuid=seed_uuid, |
| 142 | + score=score, |
| 143 | + segments=segments, |
| 144 | + ) |
| 145 | + |
| 146 | + def test_all_fit(self): |
| 147 | + ctx = self._make_scored_context(num_segments=3, score=0.9) |
| 148 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx]) |
| 149 | + result = qr.build_context(max_num_segments=10) |
| 150 | + assert len(result) == 3 |
| 151 | + |
| 152 | + def test_budget_respected(self): |
| 153 | + ctx = self._make_scored_context(num_segments=5, score=0.9) |
| 154 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx]) |
| 155 | + result = qr.build_context(max_num_segments=2) |
| 156 | + assert len(result) == 2 |
| 157 | + |
| 158 | + def test_higher_score_first(self): |
| 159 | + ctx1 = self._make_scored_context(num_segments=2, score=0.3) |
| 160 | + ctx2 = self._make_scored_context(num_segments=2, score=0.9) |
| 161 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx2, ctx1]) |
| 162 | + result = qr.build_context(max_num_segments=2) |
| 163 | + # Should pick from ctx2 (higher score) first |
| 164 | + assert all(seg in ctx2.segments for seg in result) |
| 165 | + |
| 166 | + def test_deduplication(self): |
| 167 | + shared_seg = _make_segment(text="shared") |
| 168 | + ctx1 = EventMemoryScoredSegmentContext( |
| 169 | + seed_segment_uuid=shared_seg.uuid, |
| 170 | + score=0.9, |
| 171 | + segments=[shared_seg], |
| 172 | + ) |
| 173 | + ctx2 = EventMemoryScoredSegmentContext( |
| 174 | + seed_segment_uuid=shared_seg.uuid, |
| 175 | + score=0.5, |
| 176 | + segments=[shared_seg], |
| 177 | + ) |
| 178 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx1, ctx2]) |
| 179 | + result = qr.build_context(max_num_segments=10) |
| 180 | + assert len(result) == 1 |
| 181 | + |
| 182 | + def test_chronological_order(self): |
| 183 | + seg1 = _make_segment( |
| 184 | + timestamp=datetime(2026, 1, 15, 10, 0, tzinfo=UTC), text="first" |
| 185 | + ) |
| 186 | + seg2 = _make_segment( |
| 187 | + timestamp=datetime(2026, 1, 15, 11, 0, tzinfo=UTC), text="second" |
| 188 | + ) |
| 189 | + ctx = EventMemoryScoredSegmentContext( |
| 190 | + seed_segment_uuid=seg2.uuid, |
| 191 | + score=0.9, |
| 192 | + segments=[seg2, seg1], |
| 193 | + ) |
| 194 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx]) |
| 195 | + result = qr.build_context(max_num_segments=10) |
| 196 | + assert result[0].timestamp < result[1].timestamp |
| 197 | + |
| 198 | + def test_empty_result(self): |
| 199 | + qr = EventMemoryQueryResult(scored_segment_contexts=[]) |
| 200 | + result = qr.build_context(max_num_segments=10) |
| 201 | + assert result == [] |
| 202 | + |
| 203 | + |
| 204 | +class TestToString: |
| 205 | + def test_to_string(self): |
| 206 | + seg = _make_segment( |
| 207 | + context=EventMemoryMessageContext(source="alice"), |
| 208 | + text="hello", |
| 209 | + ) |
| 210 | + ctx = EventMemoryScoredSegmentContext( |
| 211 | + seed_segment_uuid=seg.uuid, |
| 212 | + score=0.9, |
| 213 | + segments=[seg], |
| 214 | + ) |
| 215 | + qr = EventMemoryQueryResult(scored_segment_contexts=[ctx]) |
| 216 | + result = qr.to_string(max_num_segments=10) |
| 217 | + assert "alice:" in result |
| 218 | + assert "hello" in result |
| 219 | + |
| 220 | + |
| 221 | +class TestPropertiesRoundTrip: |
| 222 | + @pytest.mark.parametrize( |
| 223 | + "props", |
| 224 | + [ |
| 225 | + {"count": 42}, |
| 226 | + {"name": "test"}, |
| 227 | + {"ratio": 3.14}, |
| 228 | + {"flag": True}, |
| 229 | + {"ts": datetime(2026, 1, 15, tzinfo=UTC)}, |
| 230 | + { |
| 231 | + "count": 42, |
| 232 | + "name": "test", |
| 233 | + "ts": datetime(2026, 1, 15, tzinfo=UTC), |
| 234 | + }, |
| 235 | + ], |
| 236 | + ) |
| 237 | + def test_round_trip(self, props): |
| 238 | + seg = _make_segment(properties=props) |
| 239 | + seg2 = EventMemorySegment.model_validate(seg.model_dump(mode="json")) |
| 240 | + assert seg.properties == seg2.properties |
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