phase 14-15: docker build validation and helm deployment

tests/test_news_adapter.py

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+"""Tests for the Polygon.io news adapter.
+
+Validates request building, response parsing, and error handling.
+"""
+from services.adapters.news_adapter import NewsDataAdapter, PolygonNewsAdapter
+
+
+# --- Fake Polygon news responses ---
+
+NEWS_RESPONSE = {
+    "results": [
+        {
+            "id": "abc123",
+            "publisher": {"name": "Reuters", "homepage_url": "https://reuters.com"},
+            "title": "Apple Reports Record Revenue",
+            "article_url": "https://reuters.com/apple-record",
+            "tickers": ["AAPL"],
+            "published_utc": "2026-04-10T14:30:00Z",
+            "description": "Apple Inc. reported record quarterly revenue.",
+            "keywords": ["earnings", "apple", "revenue"],
+        },
+        {
+            "id": "def456",
+            "publisher": {"name": "Bloomberg", "homepage_url": "https://bloomberg.com"},
+            "title": "Apple Supply Chain Update",
+            "article_url": "https://bloomberg.com/apple-supply",
+            "tickers": ["AAPL", "TSM"],
+            "published_utc": "2026-04-10T12:00:00Z",
+            "description": "Supply chain adjustments for upcoming product cycle.",
+            "keywords": ["supply_chain", "apple"],
+        },
+    ],
+    "status": "OK",
+    "request_id": "req-news-001",
+    "count": 2,
+    "next_url": "https://api.polygon.io/v2/reference/news?cursor=abc",
+}
+
+EMPTY_NEWS_RESPONSE = {
+    "results": [],
+    "status": "OK",
+    "request_id": "req-news-002",
+    "count": 0,
+}
+
+
+class TestPolygonNewsSourceType:
+    def test_source_type(self):
+        adapter = PolygonNewsAdapter(api_key="k")
+        assert adapter.source_type() == "news_api"
+
+    def test_inherits_news_data_adapter(self):
+        assert issubclass(PolygonNewsAdapter, NewsDataAdapter)
+
+    def test_bucket_name(self):
+        adapter = PolygonNewsAdapter(api_key="k")
+        assert adapter.bucket_name() == "stonks-raw-news"
+
+
+class TestPolygonNewsBuildRequest:
+    def setup_method(self):
+        self.adapter = PolygonNewsAdapter(api_key="test-key", base_url="https://api.polygon.io")
+
+    def test_default_request(self):
+        url, params = self.adapter._build_request("AAPL", {})
+        assert url == "https://api.polygon.io/v2/reference/news"
+        assert params["apiKey"] == "test-key"
+        assert params["ticker"] == "AAPL"
+        assert params["limit"] == "20"
+
+    def test_custom_limit(self):
+        _, params = self.adapter._build_request("AAPL", {"limit": 50})
+        assert params["limit"] == "50"
+
+    def test_limit_capped_at_1000(self):
+        _, params = self.adapter._build_request("AAPL", {"limit": 5000})
+        assert params["limit"] == "1000"
+
+    def test_order_param(self):
+        _, params = self.adapter._build_request("AAPL", {"order": "asc"})
+        assert params["order"] == "asc"
+
+    def test_date_filters(self):
+        config = {
+            "published_utc_gte": "2026-04-01",
+            "published_utc_lte": "2026-04-10",
+        }
+        _, params = self.adapter._build_request("AAPL", config)
+        assert params["published_utc.gte"] == "2026-04-01"
+        assert params["published_utc.lte"] == "2026-04-10"
+
+    def test_no_date_filters_when_absent(self):
+        _, params = self.adapter._build_request("AAPL", {})
+        assert "published_utc.gte" not in params
+        assert "published_utc.lte" not in params
+
+    def test_trailing_slash_stripped(self):
+        adapter = PolygonNewsAdapter(api_key="k", base_url="https://api.polygon.io/")
+        url, _ = adapter._build_request("AAPL", {})
+        assert "//v2" not in url
+
+
+class TestPolygonNewsExtractItems:
+    def setup_method(self):
+        self.adapter = PolygonNewsAdapter(api_key="k")
+
+    def test_extract_articles(self):
+        items = self.adapter._extract_items(NEWS_RESPONSE)
+        assert len(items) == 2
+        assert items[0]["title"] == "Apple Reports Record Revenue"
+        assert items[1]["tickers"] == ["AAPL", "TSM"]
+
+    def test_extract_empty_results(self):
+        items = self.adapter._extract_items(EMPTY_NEWS_RESPONSE)
+        assert items == []
+
+    def test_extract_missing_results_key(self):
+        items = self.adapter._extract_items({"status": "OK"})
+        assert items == []
+
+    def test_extract_non_list_results(self):
+        items = self.adapter._extract_items({"results": "unexpected"})
+        assert items == []
+
+
+class TestPolygonNewsErrorResult:
+    def test_error_result_fields(self):
+        adapter = PolygonNewsAdapter(api_key="k")
+        result = adapter._error_result("AAPL", "rate limited", 150.0, http_status=429, raw=b"slow down")
+        assert not result.ok
+        assert result.error == "rate limited"
+        assert result.http_status == 429
+        assert result.response_time_ms == 150.0
+        assert result.raw_payload == b"slow down"
+        assert result.metadata["provider"] == "polygon"
+        assert result.source_type == "news_api"
+
+    def test_error_result_defaults(self):
+        adapter = PolygonNewsAdapter(api_key="k")
+        result = adapter._error_result("MSFT", "timeout", 200.0)
+        assert result.http_status is None
+        assert result.raw_payload == b""
+        assert result.ticker == "MSFT"