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test: disable rate limit #427

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merged 4 commits into from
Oct 11, 2024
Merged

test: disable rate limit #427

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db0364f
test(ccip-steward): disable rate limit
DhairyaSethi Oct 11, 2024
96e96f2
test: fix revert upd rate limit to zero
DhairyaSethi Oct 11, 2024
a194c76
test: fix change{enabled,disabled}rateLimit
DhairyaSethi Oct 11, 2024
29ccd61
test: document rate limit update revert code path, rename test
DhairyaSethi Oct 11, 2024
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101 changes: 100 additions & 1 deletion src/test/TestGhoCcipSteward.t.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -240,7 +240,7 @@ contract TestGhoCcipSteward is TestGhoBase {
rate: 0
});
vm.prank(RISK_COUNCIL);
vm.expectRevert();
vm.expectRevert('INVALID_RATE_LIMIT_UPDATE');
GHO_CCIP_STEWARD.updateRateLimit(
remoteChainSelector,
invalidConfig.isEnabled,
Expand All @@ -252,6 +252,105 @@ contract TestGhoCcipSteward is TestGhoBase {
);
}

function testDisableRateLimitFromNonZeroToZero() public {
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I think we can rename to testChangeEnabledRateLimit and test both directions: enabled -> disabled -> enabled

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as per discussion on slack: it is currently expected behaviour that Steward cannot re-enable disabled rate limits (due to these range checks using the current value as max permittable value) and once disabled, the dao can enable rate limits again by directly interacting with the token pool

test for this behaviour added in - a194c76

RateLimiter.TokenBucket memory outboundConfig = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentOutboundRateLimiterState(remoteChainSelector);
RateLimiter.TokenBucket memory inboundConfig = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentInboundRateLimiterState(remoteChainSelector);

assertTrue(outboundConfig.isEnabled);
assertGt(outboundConfig.capacity, 0);
assertGt(outboundConfig.rate, 0);

assertTrue(inboundConfig.isEnabled);
assertGt(inboundConfig.capacity, 0);
assertGt(inboundConfig.rate, 0);

RateLimiter.Config memory disableLimitConfig = RateLimiter.Config({
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isEnabled: false,
capacity: 0,
rate: 0
});

// disable both inbound & outbound config
vm.prank(RISK_COUNCIL);
GHO_CCIP_STEWARD.updateRateLimit(
remoteChainSelector,
disableLimitConfig.isEnabled,
disableLimitConfig.capacity,
disableLimitConfig.rate,
disableLimitConfig.isEnabled,
disableLimitConfig.capacity,
disableLimitConfig.rate
);

outboundConfig = MockUpgradeableLockReleaseTokenPool(GHO_TOKEN_POOL)
.getCurrentOutboundRateLimiterState(remoteChainSelector);
inboundConfig = MockUpgradeableLockReleaseTokenPool(GHO_TOKEN_POOL)
.getCurrentInboundRateLimiterState(remoteChainSelector);

assertFalse(outboundConfig.isEnabled);
assertEq(outboundConfig.capacity, 0);
assertEq(outboundConfig.rate, 0);

assertFalse(inboundConfig.isEnabled);
assertEq(inboundConfig.capacity, 0);
assertEq(inboundConfig.rate, 0);
}

function testDisableRateLimitOnlyOutboundConfig() public {
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RateLimiter.TokenBucket memory outboundConfig = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentOutboundRateLimiterState(remoteChainSelector);
RateLimiter.TokenBucket memory inboundConfig = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentInboundRateLimiterState(remoteChainSelector);

assertTrue(outboundConfig.isEnabled);
assertGt(outboundConfig.capacity, 0);
assertGt(outboundConfig.rate, 0);

assertTrue(inboundConfig.isEnabled);
assertGt(inboundConfig.capacity, 0);
assertGt(inboundConfig.rate, 0);

RateLimiter.Config memory disableLimitConfig = RateLimiter.Config({
isEnabled: false,
capacity: 0,
rate: 0
});

// disable only outbound config
vm.prank(RISK_COUNCIL);
GHO_CCIP_STEWARD.updateRateLimit(
remoteChainSelector,
disableLimitConfig.isEnabled,
disableLimitConfig.capacity,
disableLimitConfig.rate,
// preserve inboundConfig
inboundConfig.isEnabled,
inboundConfig.capacity,
inboundConfig.rate
);

RateLimiter.TokenBucket memory outboundConfigNew = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentOutboundRateLimiterState(remoteChainSelector);
RateLimiter.TokenBucket memory inboundConfigNew = MockUpgradeableLockReleaseTokenPool(
GHO_TOKEN_POOL
).getCurrentInboundRateLimiterState(remoteChainSelector);

assertFalse(outboundConfigNew.isEnabled);
assertEq(outboundConfigNew.capacity, 0);
assertEq(outboundConfigNew.rate, 0);

assertTrue(inboundConfigNew.isEnabled);
assertEq(inboundConfigNew.capacity, inboundConfig.capacity);
assertEq(inboundConfigNew.rate, inboundConfig.rate);
}

function testRevertUpdateRateLimitRateGreaterThanCapacity() public {
RateLimiter.Config memory invalidConfig = RateLimiter.Config({
isEnabled: true,
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