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*Added UT infra for Generic Hash feature *Aligned PBH tests with Generic Hash UT infra
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| """Utilities for interacting with HASH objects when writing VS tests.""" | ||
| from typing import Dict, List | ||
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| class DVSHash: | ||
| """Manage hash objects on the virtual switch.""" | ||
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| CDB_SWITCH_HASH = "SWITCH_HASH" | ||
| KEY_SWITCH_HASH_GLOBAL = "GLOBAL" | ||
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| ADB_HASH = "ASIC_STATE:SAI_OBJECT_TYPE_HASH" | ||
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| def __init__(self, asic_db, config_db): | ||
| """Create a new DVS hash manager.""" | ||
| self.asic_db = asic_db | ||
| self.config_db = config_db | ||
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| def update_switch_hash( | ||
| self, | ||
| qualifiers: Dict[str, str] | ||
| ) -> None: | ||
| """Update switch hash global in Config DB.""" | ||
| self.config_db.update_entry(self.CDB_SWITCH_HASH, self.KEY_SWITCH_HASH_GLOBAL, qualifiers) | ||
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| def get_hash_ids( | ||
| self, | ||
| expected: int = None | ||
| ) -> List[str]: | ||
| """Get all of the hash ids in ASIC DB. | ||
| Args: | ||
| expected: The number of hash ids that are expected to be present in ASIC DB. | ||
| Returns: | ||
| The list of hash ids in ASIC DB. | ||
| """ | ||
| if expected is None: | ||
| return self.asic_db.get_keys(self.ADB_HASH) | ||
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| num_keys = len(self.asic_db.default_hash_keys) + expected | ||
| keys = self.asic_db.wait_for_n_keys(self.ADB_HASH, num_keys) | ||
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| for k in self.asic_db.default_hash_keys: | ||
| assert k in keys | ||
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| return [k for k in keys if k not in self.asic_db.default_hash_keys] | ||
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| def verify_hash_count( | ||
| self, | ||
| expected: int | ||
| ) -> None: | ||
| """Verify that there are N hash objects in ASIC DB. | ||
| Args: | ||
| expected: The number of hash ids that are expected to be present in ASIC DB. | ||
| """ | ||
| self.get_hash_ids(expected) | ||
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| def verify_hash_generic( | ||
| self, | ||
| sai_hash_id: str, | ||
| sai_qualifiers: Dict[str, str] | ||
| ) -> None: | ||
| """Verify that hash object has correct ASIC DB representation. | ||
| Args: | ||
| sai_hash_id: The specific hash id to check in ASIC DB. | ||
| sai_qualifiers: The expected set of SAI qualifiers to be found in ASIC DB. | ||
| """ | ||
| entry = self.asic_db.wait_for_entry(self.ADB_HASH, sai_hash_id) | ||
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| for k, v in entry.items(): | ||
| if k == "NULL": | ||
| continue | ||
| elif k in sai_qualifiers: | ||
| if k == "SAI_HASH_ATTR_NATIVE_HASH_FIELD_LIST": | ||
| hfList = v[v.index(":")+1:].split(",") | ||
| assert set(sai_qualifiers[k]) == set(hfList) | ||
| else: | ||
| assert False, "Unknown SAI qualifier: key={}, value={}".format(k, v) |
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