broker-sync/tests/fixtures/invest_engine/html_partial_match.eml

From: InvestEngine <no-reply@investengine.com>
To: viktorbarzin@example.com
Subject: Your portfolio has been updated
Date: Wed, 15 Apr 2026 11:00:00 +0000
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="----=_Part_PM"

------=_Part_PM
Content-Type: text/plain; charset=UTF-8

(HTML-only view — your client does not render HTML emails.)

------=_Part_PM
Content-Type: text/html; charset=UTF-8

<html><body>
<table><tr><td>Logo</td></tr></table>
<table>
 <tr><td> Date: 15 April 2026 </td></tr>
 <tr>
  <td>
   <table>
    <tr><td>Vanguard S&amp;P 500: VUAG</td></tr>
    <tr><td>Bought 3.0 @ &pound;61.25 per share</td></tr>
    <tr><td>Total: &pound;183.75</td></tr>
   </table>
  </td>
 </tr>
 <tr>
  <td>
   <table>
    <tr><td>Some broken order with no ticker and no bought line</td></tr>
    <tr><td>(Malformed — IE dropped a row mid-render)</td></tr>
   </table>
  </td>
 </tr>
</table>
</body></html>

------=_Part_PM--
Pin InvestEngine parser failure modes — empty-on-junk + partial-match Context: The port's graceful-failure contract was implicit in the way each strategy returns None/[] on malformed input, but without tests it was an accidental property that could regress silently. Codify it. Two invariants, each backed by a fixture: 1. Junk email → empty list, never raise. `unparseable.eml` is a pure-marketing IE newsletter with no order data. All three strategies try and fail; parse_invest_engine_email returns []. No exception leaks. 2. Partial HTML email → intact orders only. `html_partial_match.eml` has two nested summary tables: one with a valid VUAG order, one that is missing both the ticker and "Bought N @ £P" rows (simulates IE dropping content mid-render). The parser returns just the VUAG order. No implementation change needed — the behaviour existed as a side effect of _try_html_summary_table returning None on missing fields. These tests lock it down so future refactors can't quietly break it. Test plan: poetry run pytest tests/providers/parsers/ -q → 8 passed in 0.19s poetry run mypy broker_sync/providers/parsers/invest_engine.py tests/providers/parsers/test_invest_engine.py → clean poetry run ruff check broker_sync/providers/parsers/invest_engine.py tests/providers/parsers/test_invest_engine.py → All checks passed! poetry run yapf --diff → clean (no diff) Manual verification: - Load unparseable.eml → parse returns []. - Load html_partial_match.eml → parse returns exactly 1 activity (VUAG). 2026-04-17 22:02:48 +00:00			`From: InvestEngine <no-reply@investengine.com>`
			`To: viktorbarzin@example.com`
			`Subject: Your portfolio has been updated`
			`Date: Wed, 15 Apr 2026 11:00:00 +0000`
			`MIME-Version: 1.0`
			`Content-Type: multipart/alternative; boundary="----=_Part_PM"`

			`------=_Part_PM`
			`Content-Type: text/plain; charset=UTF-8`

			`(HTML-only view — your client does not render HTML emails.)`

			`------=_Part_PM`
			`Content-Type: text/html; charset=UTF-8`

			`<html><body>`
			`<table><tr><td>Logo</td></tr></table>`
			`<table>`
			`<tr><td> Date: 15 April 2026 </td></tr>`
			`<tr>`
			`<td>`
			`<table>`
			`<tr><td>Vanguard S&P 500: VUAG</td></tr>`
			`<tr><td>Bought 3.0 @ £61.25 per share</td></tr>`
			`<tr><td>Total: £183.75</td></tr>`
			`</table>`
			`</td>`
			`</tr>`
			`<tr>`
			`<td>`
			`<table>`
			`<tr><td>Some broken order with no ticker and no bought line</td></tr>`
			`<tr><td>(Malformed — IE dropped a row mid-render)</td></tr>`
			`</table>`
			`</td>`
			`</tr>`
			`</table>`
			`</body></html>`

			`------=_Part_PM--`