fix(api): Add proper tip mismatch for flex (#14563)

# Overview
Turns out we never actually updated the tiprack mismatch warning in the
python api to handle flex pipette capabilities. Adds in the proper tip
types and a test.

api/src/opentrons/protocols/api_support/instrument.py

@@ -73,11 +73,14 @@ def tip_length_for(
 
 
 VALID_PIP_TIPRACK_VOL = {
-    "p10": [10, 20],
-    "p20": [10, 20],
-    "p50": [50, 200, 300],
-    "p300": [200, 300],
-    "p1000": [1000],
+    "FLEX": {"p50": [50], "p1000": [50, 200, 1000]},
+    "OT2": {
+        "p10": [10, 20],
+        "p20": [10, 20],
+        "p50": [50, 200, 300],
+        "p300": [200, 300],
+        "p1000": [1000],
+    },
 }
 
 
@@ -92,7 +95,11 @@ def validate_tiprack(
     #  tipracks to the pipette as a refactor
     if tip_rack.uri.startswith("opentrons/"):
         tiprack_vol = tip_rack.wells()[0].max_volume
-        valid_vols = VALID_PIP_TIPRACK_VOL[instrument_name.split("_")[0]]
+        instr_metadata = instrument_name.split("_")
+        gen_lookup = (
+            "FLEX" if ("flex" in instr_metadata or "96" in instr_metadata) else "OT2"
+        )
+        valid_vols = VALID_PIP_TIPRACK_VOL[gen_lookup][instrument_name.split("_")[0]]
         if tiprack_vol not in valid_vols:
             log.warning(
                 f"The pipette {instrument_name} and its tip rack {tip_rack.load_name}"

api/tests/opentrons/protocols/api_support/test_instrument.py

@@ -1,6 +1,11 @@
 import pytest
+import logging
+from typing import Optional
 from opentrons.protocol_api import ProtocolContext
-from opentrons.protocols.api_support.instrument import validate_takes_liquid
+from opentrons.protocols.api_support.instrument import (
+    validate_takes_liquid,
+    validate_tiprack,
+)
 from opentrons.types import Location, Point
 
 
@@ -125,3 +130,32 @@ def test_validate_takes_liquid_adapter(ctx):
             reject_module=False,
             reject_adapter=True,
         )
+
+
+@pytest.mark.parametrize(
+    argnames=["pipette_name", "log_value"],
+    argvalues=[
+        ["p1000_96", None],
+        [
+            "p50_single_flex",
+            "The pipette p50_single_flex and its tip rack opentrons_flex_96_tiprack_200ul appear to be mismatched. Please check your protocol.",
+        ],
+        [
+            "p20_single_gen2",
+            "The pipette p20_single_gen2 and its tip rack opentrons_flex_96_tiprack_200ul appear to be mismatched. Please check your protocol.",
+        ],
+    ],
+)
+def test_validate_tiprack(
+    ctx: ProtocolContext, caplog, pipette_name: str, log_value: Optional[str]
+):
+    tip_rack = ctx.load_labware("opentrons_flex_96_tiprack_200ul", 2)
+
+    with caplog.at_level(logging.WARNING):
+        log = logging.getLogger(__name__)
+        validate_tiprack(pipette_name, tip_rack, log=log)
+
+    if log_value:
+        assert caplog.messages[0] == log_value
+    else:
+        assert caplog.records == []