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[generic-config-updater] Improving CreateOnly validator and marking /…
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…LOOPBACK_INTERFACE/LOOPBACK#/vrf_name as create-only (sonic-net#1969)

#### What I did
Fix sonic-net#1962

Updated `create-only` flag meaning.

From, Field is not replaceable but can be added or deleted. In other words:
- Field can be added
- Field can be deleted
- Field cannot be replaced

To, Field is only created, but never modified/updated. In other words:
- Field cannot be added, only if the parent is added
- Field cannot be deleted, only if the parent is deleted
- Field cannot be replaced

Also marked `/LOOPBACK_INTERFACE/LOOPBACK#/vrf_name` as `create-only`

#### How I did it
- Field was already not replaceable -- so no changes
- If field is added, but parent already exist -- fail create-only validation
- If field is deleted, but parent remain -- fail create-only validation

#### How to verify it
unit-test

#### Examples
Check issue to see how `apply-patch` behaved before this fix.

Each example below we show configdb, vrf_01, vrf_02, and ip interfaces before and after the update.

**Adding vrf_name**
```sh
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3
        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {},
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
admin@vlab-01:~/lo$ show ip route vrf Vrf_02
admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0                  10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ sudo config apply-patch add-lo0-vrf01.json-patch -i /BGP_NEIGHBOR -i /DEVICE_METADATA -i /FEATURE -i /FLEX_COUNTER_TABLE -i /VLAN/Vlan1000/members -i /SCHEDULER -i /QUEUE
Patch Applier: Patch application starting.
Patch Applier: Patch: [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0/vrf_name", "value": "Vrf_01"}]
Patch Applier: Getting current config db.
Patch Applier: Simulating the target full config after applying the patch.
Patch Applier: Validating target config does not have empty tables, since they do not show up in ConfigDb.
Patch Applier: Sorting patch updates.
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
libyang[0]: Must condition "(current() = ../../LOOPBACK_INTERFACE_LIST[name=current()]/name)" not satisfied. (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
libyang[0]: Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {} (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
sonic_yang(3):Data Loading Failed:Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {}
Patch Applier: The patch was sorted into 4 changes:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {"vrf_name": "Vrf_01"}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Applying 4 changes in order:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {"vrf_name": "Vrf_01"}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Verifying patch updates are reflected on ConfigDB.
Patch Applier: Patch application completed.
Patch applied successfully.
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3
        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {
            "vrf_name": "Vrf_01"
        },
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
Codes: K - kernel route, C - connected, S - static, R - RIP,
       O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
       F - PBR, f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup

VRF Vrf_01:
C>* 10.1.0.32/32 is directly connected, Loopback0, 00:00:19

admin@vlab-01:~/lo$ show ip route vrf Vrf_02
admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0        Vrf_01    10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ 
```

**Replacing vrf_name**
```sh
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3
        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {
            "vrf_name": "Vrf_01"
        },
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
Codes: K - kernel route, C - connected, S - static, R - RIP,
       O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
       F - PBR, f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup

VRF Vrf_01:
C>* 10.1.0.32/32 is directly connected, Loopback0, 00:00:19

admin@vlab-01:~/lo$ show ip route vrf Vrf_02
admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0        Vrf_01    10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ sudo config apply-patch replace-lo0-vrf02.json-patch -i /BGP_NEIGHBOR -i /DEVICE_METADATA -i /FEATURE -i /FLEX_COUNTER_TABLE -i /VLAN/Vlan1000/members -i /SCHEDULER -i /QUEUE
Patch Applier: Patch application starting.
Patch Applier: Patch: [{"op": "replace", "path": "/LOOPBACK_INTERFACE/Loopback0/vrf_name", "value": "Vrf_02"}]
Patch Applier: Getting current config db.
Patch Applier: Simulating the target full config after applying the patch.
Patch Applier: Validating target config does not have empty tables, since they do not show up in ConfigDb.
Patch Applier: Sorting patch updates.
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
libyang[0]: Must condition "(current() = ../../LOOPBACK_INTERFACE_LIST[name=current()]/name)" not satisfied. (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
libyang[0]: Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {} (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
sonic_yang(3):Data Loading Failed:Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {}
Patch Applier: The patch was sorted into 4 changes:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {"vrf_name": "Vrf_02"}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Applying 4 changes in order:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {"vrf_name": "Vrf_02"}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Verifying patch updates are reflected on ConfigDB.
Patch Applier: Patch application completed.
Patch applied successfully.
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {
            "vrf_name": "Vrf_02"
        },
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
admin@vlab-01:~/lo$ show ip route vrf Vrf_02
Codes: K - kernel route, C - connected, S - static, R - RIP,
       O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
       F - PBR, f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup

VRF Vrf_02:
C>* 10.1.0.32/32 is directly connected, Loopback0, 00:00:29

admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0        Vrf_02    10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ 
```

**Removing vrf_name**
```sh
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {
            "vrf_name": "Vrf_02"
        },
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
admin@vlab-01:~/lo$ show ip route vrf Vrf_02
Codes: K - kernel route, C - connected, S - static, R - RIP,
       O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
       T - Table, v - VNC, V - VNC-Direct, A - Babel, D - SHARP,
       F - PBR, f - OpenFabric,
       > - selected route, * - FIB route, q - queued, r - rejected, b - backup

VRF Vrf_02:
C>* 10.1.0.32/32 is directly connected, Loopback0, 00:00:29

admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0        Vrf_02    10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ sudo config apply-patch remove-lo0-vrf02.json-patch -i /BGP_NEIGHBOR -i /DEVICE_METADATA -i /FEATURE -i /FLEX_COUNTER_TABLE -i /VLAN/Vlan1000/members -i /SCHEDULER -i /QUEUE
Patch Applier: Patch application starting.
Patch Applier: Patch: [{"op": "remove", "path": "/LOOPBACK_INTERFACE/Loopback0/vrf_name"}]
Patch Applier: Getting current config db.
Patch Applier: Simulating the target full config after applying the patch.
Patch Applier: Validating target config does not have empty tables, since they do not show up in ConfigDb.
Patch Applier: Sorting patch updates.
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
Note: Below table(s) have no YANG models:
BGP_PEER_RANGE, CABLE_LENGTH, CONSOLE_SWITCH, DEVICE_NEIGHBOR_METADATA, DHCP_SERVER, KDUMP, RESTAPI, SNMP, SNMP_COMMUNITY, SYSLOG_SERVER, TELEMETRY, 
libyang[0]: Must condition "(current() = ../../LOOPBACK_INTERFACE_LIST[name=current()]/name)" not satisfied. (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
libyang[0]: Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {} (path: /sonic-loopback-interface:sonic-loopback-interface/LOOPBACK_INTERFACE/LOOPBACK_INTERFACE_IPPREFIX_LIST[name='Loopback0'][ip-prefix='10.1.0.32/32']/name)
sonic_yang(3):Data Loading Failed:Must condition not satisfied, Try adding lo<>: {}, Example: 'lo1': {}
Patch Applier: The patch was sorted into 4 changes:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Applying 4 changes in order:
Patch Applier:   * [{"op": "remove", "path": "/LOOPBACK_INTERFACE"}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE", "value": {"Loopback0": {}}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|10.1.0.32~132", "value": {}}]
Patch Applier:   * [{"op": "add", "path": "/LOOPBACK_INTERFACE/Loopback0|FC00:1::32~1128", "value": {}}]
Patch Applier: Verifying patch updates are reflected on ConfigDB.
Patch Applier: Patch application completed.
Patch applied successfully.
admin@vlab-01:~/lo$ show run all | grep -i 'loopback0\|vrf_01' -a3
        }
    },
    "LOOPBACK_INTERFACE": {
        "Loopback0": {},
        "Loopback0|10.1.0.32/32": {},
        "Loopback0|FC00:1::32/128": {}
    },
    "MAP_PFC_PRIORITY_TO_QUEUE": {
        "AZURE": {
--
        }
    },
    "VRF": {
        "Vrf_01": {},
        "Vrf_02": {}
    },
    "WRED_PROFILE": {
admin@vlab-01:~/lo$ show ip route vrf Vrf_01
admin@vlab-01:~/lo$ show ip route vrf Vrf_02
admin@vlab-01:~/lo$ show ip interfaces | grep -i loopback0
Loopback0                  10.1.0.32/32         up/up         N/A             N/A
admin@vlab-01:~/lo$ 
```
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@ghooo
ghooo committed Dec 16, 2021
1 parent 0067cc4 commit e44c3f6
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90 changes: 74 additions & 16 deletions generic_config_updater/patch_sorter.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -372,40 +372,58 @@ def validate(self, move, diff):

class CreateOnlyMoveValidator:
"""
A class to validate create-only fields are only added/removed but never replaced.
Parents of create-only fields are also only added/removed but never replaced when they contain
a modified create-only field.
A class to validate create-only fields are only created, but never modified/updated. In other words:
- Field cannot be replaced.
- Field cannot be added, only if the parent is added.
- Field cannot be deleted, only if the parent is deleted.
"""
def __init__(self, path_addressing):
self.path_addressing = path_addressing

def validate(self, move, diff):
if move.op_type != OperationType.REPLACE:
return True
# TODO: create-only fields are hard-coded for now, it should be moved to YANG models
# Each pattern consist of a list of tokens. Token matching starts from the root level of the config.
# Each token is either a specific key or '*' to match all keys.
self.create_only_patterns = [
["PORT", "*", "lanes"],
["LOOPBACK_INTERFACE", "*", "vrf_name"],
]

# The 'create-only' field needs to be common between current and simulated anyway but different.
# This means it is enough to just get the paths from current_config, paths that are not common can be ignored.
paths = self._get_create_only_paths(diff.current_config)
def validate(self, move, diff):
simulated_config = move.apply(diff.current_config)
paths = set(list(self._get_create_only_paths(diff.current_config)) + list(self._get_create_only_paths(simulated_config)))

for path in paths:
tokens = self.path_addressing.get_path_tokens(path)
if self._value_exist_but_different(tokens, diff.current_config, simulated_config):
return False
if self._value_added_but_parent_exist(tokens, diff.current_config, simulated_config):
return False
if self._value_removed_but_parent_remain(tokens, diff.current_config, simulated_config):
return False

return True

# TODO: create-only fields are hard-coded for now, it should be moved to YANG models
def _get_create_only_paths(self, config):
if "PORT" not in config:
for pattern in self.create_only_patterns:
for create_only_path in self._get_create_only_path_recursive(config, pattern, [], 0):
yield create_only_path

def _get_create_only_path_recursive(self, config, pattern_tokens, matching_tokens, idx):
if idx == len(pattern_tokens):
yield '/' + '/'.join(matching_tokens)
return

ports = config["PORT"]
matching_keys = []
if pattern_tokens[idx] == "*":
matching_keys = config.keys()
elif pattern_tokens[idx] in config:
matching_keys = [pattern_tokens[idx]]

for port in ports:
attrs = ports[port]
if "lanes" in attrs:
yield f"/PORT/{port}/lanes"
for key in matching_keys:
matching_tokens.append(key)
for create_only_path in self._get_create_only_path_recursive(config[key], pattern_tokens, matching_tokens, idx+1):
yield create_only_path
matching_tokens.pop()

def _value_exist_but_different(self, tokens, current_config_ptr, simulated_config_ptr):
for token in tokens:
Expand All @@ -422,6 +440,46 @@ def _value_exist_but_different(self, tokens, current_config_ptr, simulated_confi

return current_config_ptr != simulated_config_ptr

def _value_added_but_parent_exist(self, tokens, current_config_ptr, simulated_config_ptr):
# if value is not added, return false
if not self._exist_only_in_first(tokens, simulated_config_ptr, current_config_ptr):
return False

# if parent is added, return false
if self._exist_only_in_first(tokens[:-1], simulated_config_ptr, current_config_ptr):
return False

# otherwise parent exist and value is added
return True

def _value_removed_but_parent_remain(self, tokens, current_config_ptr, simulated_config_ptr):
# if value is not removed, return false
if not self._exist_only_in_first(tokens, current_config_ptr, simulated_config_ptr):
return False

# if parent is removed, return false
if self._exist_only_in_first(tokens[:-1], current_config_ptr, simulated_config_ptr):
return False

# otherwise parent remained and value is removed
return True

def _exist_only_in_first(self, tokens, first_config_ptr, second_config_ptr):
for token in tokens:
mod_token = int(token) if isinstance(first_config_ptr, list) else token

if mod_token not in second_config_ptr:
return True

if mod_token not in first_config_ptr:
return False

first_config_ptr = first_config_ptr[mod_token]
second_config_ptr = second_config_ptr[mod_token]

# tokens exist in both
return False

class NoDependencyMoveValidator:
"""
A class to validate that the modified configs do not have dependency on each other. This should prevent
Expand Down
16 changes: 16 additions & 0 deletions tests/generic_config_updater/files/config_db_with_loopback_interfaces.json
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
{
"LOOPBACK_INTERFACE": {
"Loopback0": {},
"Loopback0|10.1.0.32/32": {},
"Loopback0|1100:1::32/128": {},
"Loopback1": {
"vrf_name": "Vrf_02"
},
"Loopback1|20.2.0.32/32": {},
"Loopback1|2200:2::32/128": {}
},
"VRF": {
"Vrf_01": {},
"Vrf_02": {}
}
}
89 changes: 79 additions & 10 deletions tests/generic_config_updater/patch_sorter_test.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -784,13 +784,6 @@ def setUp(self):
self.validator = ps.CreateOnlyMoveValidator(ps.PathAddressing())
self.any_diff = ps.Diff({}, {})

def test_validate__non_replace_operation__success(self):
# Assert
self.assertTrue(self.validator.validate( \
ps.JsonMove(self.any_diff, OperationType.ADD, [], []), self.any_diff))
self.assertTrue(self.validator.validate( \
ps.JsonMove(self.any_diff, OperationType.REMOVE, [], []), self.any_diff))

def test_validate__no_create_only_field__success(self):
current_config = {"PORT": {}}
target_config = {"PORT": {}, "ACL_TABLE": {}}
Expand Down Expand Up @@ -833,30 +826,86 @@ def test_validate__different_create_only_field_updating_grandparent__failure(sel
["PORT"],
False)

def test_validate__same_create_only_field_directly_updated__failure(self):
def test_validate__same_create_only_field_directly_updated__success(self):
current_config = {"PORT": {"Ethernet0":{"lanes":"65"}}}
target_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
self.verify_diff(current_config,
target_config,
["PORT", "Ethernet0", "lanes"],
["PORT", "Ethernet0", "lanes"])

def test_validate__same_create_only_field_updating_parent__failure(self):
def test_validate__same_create_only_field_updating_parent__success(self):
current_config = {"PORT": {"Ethernet0":{"lanes":"65"}}}
target_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
self.verify_diff(current_config,
target_config,
["PORT", "Ethernet0"],
["PORT", "Ethernet0"])

def test_validate__same_create_only_field_updating_grandparent__failure(self):
def test_validate__same_create_only_field_updating_grandparent__success(self):
current_config = {"PORT": {"Ethernet0":{"lanes":"65"}}}
target_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
self.verify_diff(current_config,
target_config,
["PORT"],
["PORT"])

def test_validate__added_create_only_field_parent_exist__failure(self):
current_config = {"PORT": {"Ethernet0":{}}}
target_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
self.verify_diff(current_config,
target_config,
["PORT"],
["PORT"],
expected=False)

def test_validate__added_create_only_field_parent_doesnot_exist__success(self):
current_config = {"PORT": {}}
target_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
self.verify_diff(current_config,
target_config,
["PORT"],
["PORT"])

def test_validate__removed_create_only_field_parent_remain__failure(self):
current_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
target_config = {"PORT": {"Ethernet0":{}}}
self.verify_diff(current_config,
target_config,
["PORT"],
["PORT"],
expected=False)

def test_validate__removed_create_only_field_parent_doesnot_remain__success(self):
current_config = {"PORT": {"Ethernet0":{"lanes":"65"}}, "ACL_TABLE": {}}
target_config = {"PORT": {}}
self.verify_diff(current_config,
target_config,
["PORT"],
["PORT"])

def test_hard_coded_create_only_paths(self):
config = {
"PORT": {
"Ethernet0":{"lanes":"65"},
"Ethernet1":{},
"Ethernet2":{"lanes":"66,67"}
},
"LOOPBACK_INTERFACE": {
"Loopback0":{"vrf_name":"vrf0"},
"Loopback1":{},
"Loopback2":{"vrf_name":"vrf1"},
}}
expected = [
"/PORT/Ethernet0/lanes",
"/PORT/Ethernet2/lanes",
"/LOOPBACK_INTERFACE/Loopback0/vrf_name",
"/LOOPBACK_INTERFACE/Loopback2/vrf_name"
]
actual = self.validator._get_create_only_paths(config)

self.assertCountEqual(expected, actual)

def verify_diff(self, current_config, target_config, current_config_tokens=None, target_config_tokens=None, expected=True):
# Arrange
current_config_tokens = current_config_tokens if current_config_tokens else []
Expand Down Expand Up @@ -1741,6 +1790,26 @@ def test_sort__replacing_create_only_field__success(self):
# Assert
self.assertNotEqual(None, actual)

def test_sort__adding_create_only_field__success(self):
# Arrange
patch = jsonpatch.JsonPatch([{"op":"add", "path": "/LOOPBACK_INTERFACE/Loopback0/vrf_name", "value":"Vrf_01"}])

# Act
actual = self.create_patch_sorter(Files.CONFIG_DB_WITH_LOOPBACK_INTERFACES).sort(patch)

# Assert
self.assertNotEqual(None, actual)

def test_sort__removing_create_only_field__success(self):
# Arrange
patch = jsonpatch.JsonPatch([{"op":"remove", "path": "/LOOPBACK_INTERFACE/Loopback1/vrf_name"}])

# Act
actual = self.create_patch_sorter(Files.CONFIG_DB_WITH_LOOPBACK_INTERFACES).sort(patch)

# Assert
self.assertNotEqual(None, actual)

def test_sort__inter_dependency_within_same_table__success(self):
# Arrange
patch = jsonpatch.JsonPatch([{"op":"add", "path":"/VLAN_INTERFACE", "value": {
Expand Down

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