fix(backend): make 835 summary counts consistent with total_claims

backend/tests/test_api_835.py

@@ -41,7 +41,8 @@ def test_parse_835_endpoint_returns_json(client: TestClient):
     assert "claims" in body and len(body["claims"]) == 2
     assert "summary" in body
     assert body["summary"]["total_claims"] == 2
-    assert body["summary"]["passed"] == 1
+    assert body["summary"]["passed"] == 2
+    assert body["summary"]["failed"] == 0
 
 
 # --------------------------------------------------------------------------- #
@@ -79,7 +80,7 @@ def test_parse_835_endpoint_streams_ndjson(client: TestClient):
 
     # Summary numbers match the JSON path.
     assert parsed[7]["data"]["total_claims"] == 2
-    assert parsed[7]["data"]["passed"] == 1
+    assert parsed[7]["data"]["passed"] == 2
 
 
 def test_parse_835_endpoint_streams_ndjson_without_raw_segments(client: TestClient):
@@ -123,7 +124,7 @@ def test_parse_835_endpoint_handles_payer_query_param(client: TestClient):
         assert resp.status_code == 200, (payer, resp.text)
         body = resp.json()
         assert body["summary"]["total_claims"] == 2
-        assert body["summary"]["passed"] == 1
+        assert body["summary"]["passed"] == 2
 
 
 def test_parse_835_endpoint_rejects_unknown_payer(client: TestClient):

backend/tests/test_cli_835.py

@@ -9,6 +9,7 @@ from cyclone.cli import main
 
 FIXTURE = Path(__file__).parent / "fixtures" / "minimal_835.txt"
 UNBALANCED = Path(__file__).parent / "fixtures" / "unbalanced_835.txt"
+CO_FIXTURE = Path(__file__).parent / "fixtures" / "co_medicaid_835.txt"
 
 
 def test_cli_parse_835_writes_outputs(tmp_path: Path):
@@ -71,3 +72,21 @@ def test_cli_parse_835_generic_payer(tmp_path: Path):
     assert result.exit_code == 0, result.output
     summary = json.loads((tmp_path / "summary.json").read_text())
     assert summary["passed"] == 1
+
+
+def test_cli_parse_835_summary_counts_consistent(tmp_path: Path):
+    """Regression: passed + failed must equal total_claims for any batch size.
+
+    The CO Medicaid fixture has 2 claim payments; if the batch validates
+    cleanly, both must show as passed (passed=2, failed=0). A pre-fix
+    implementation set passed=1 regardless of claim count.
+    """
+    runner = CliRunner()
+    result = runner.invoke(main, ["parse-835", str(CO_FIXTURE), "--output-dir", str(tmp_path)])
+    assert result.exit_code == 0, result.output
+    summary = json.loads((tmp_path / "summary.json").read_text())
+    assert summary["total_claims"] == 2
+    assert summary["passed"] + summary["failed"] == summary["total_claims"]
+    assert summary["passed"] == 2
+    assert summary["failed"] == 0
+    assert summary["failed_claim_ids"] == []