test(backend): add SaluteSpeech parsing and document building tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

tests/integration/test_salutespeech_parsing.py

@@ -0,0 +1,99 @@
+"""Tests for SaluteSpeech result parsing and document building."""
+
+from cpv3.modules.transcription.service import (
+    _build_document_from_salute_result,
+    _parse_salute_time,
+)
+
+
+class TestParseSaluteTime:
+    def test_simple_timestamp(self):
+        assert _parse_salute_time("0.480s") == 0.48
+
+    def test_zero(self):
+        assert _parse_salute_time("0.000s") == 0.0
+
+    def test_large_timestamp(self):
+        assert _parse_salute_time("123.456s") == 123.456
+
+    def test_integer_timestamp(self):
+        assert _parse_salute_time("5s") == 5.0
+
+
+class TestBuildDocumentFromSaluteResult:
+    def _make_raw_result(self):
+        """Minimal SaluteSpeech API response for testing."""
+        return [
+            {
+                "results": [
+                    {
+                        "text": "привет мир",
+                        "normalized_text": "Привет мир.",
+                        "start": "0.480s",
+                        "end": "1.200s",
+                        "word_alignments": [
+                            {"word": "привет", "start": "0.480s", "end": "0.840s"},
+                            {"word": "мир", "start": "0.960s", "end": "1.200s"},
+                        ],
+                    },
+                    {
+                        "text": "это тест",
+                        "normalized_text": "Это тест.",
+                        "start": "1.500s",
+                        "end": "2.100s",
+                        "word_alignments": [
+                            {"word": "это", "start": "1.500s", "end": "1.700s"},
+                            {"word": "тест", "start": "1.800s", "end": "2.100s"},
+                        ],
+                    },
+                ],
+                "channel": 0,
+            }
+        ]
+
+    def test_returns_document_with_segments(self):
+        raw = self._make_raw_result()
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        assert len(doc.segments) == 2
+
+    def test_segment_text(self):
+        raw = self._make_raw_result()
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        assert doc.segments[0].lines[0].text == "привет мир"
+
+    def test_word_timestamps(self):
+        raw = self._make_raw_result()
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        first_word = doc.segments[0].lines[0].words[0]
+        assert first_word.text == "привет"
+        assert first_word.time.start == 0.48
+        assert first_word.time.end == 0.84
+
+    def test_segment_time_range(self):
+        raw = self._make_raw_result()
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        assert doc.segments[0].time.start == 0.48
+        assert doc.segments[0].time.end == 1.2
+
+    def test_empty_results(self):
+        raw = [{"results": [], "channel": 0}]
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        assert len(doc.segments) == 0
+
+    def test_missing_word_alignments(self):
+        raw = [
+            {
+                "results": [
+                    {
+                        "text": "привет",
+                        "normalized_text": "Привет.",
+                        "start": "0.000s",
+                        "end": "0.500s",
+                    }
+                ],
+                "channel": 0,
+            }
+        ]
+        doc = _build_document_from_salute_result(raw, language="ru-RU")
+        assert len(doc.segments) == 1
+        assert doc.segments[0].time.start == 0.0