Add test for event

contracts/gas-snapshots/feeds.gas-snapshot

@@ -55,10 +55,10 @@ LatestTimestamp:test_ReturnsSyncedTimestamp() (gas: 170861)
 LatestTransmissionDetails:test_ReturnsLatestTransmissionDetails() (gas: 19740)
 LatestTransmissionDetails:test_RevertIf_NotEOA() (gas: 8558)
 LinkAvailableForPayment:test_ReturnsBalanceWhenNothingDue() (gas: 189995)
-LinkAvailableForPayment:test_ReturnsRemainingBalanceWhenHasDues() (gas: 369810)
-OracleObservationCount:test_ReturnsCorrectObservationCount() (gas: 223298)
+LinkAvailableForPayment:test_ReturnsRemainingBalanceWhenHasDues() (gas: 369822)
+OracleObservationCount:test_ReturnsCorrectObservationCount() (gas: 223310)
 OracleObservationCount:test_ReturnsZeroWhenNoObservations() (gas: 20050)
-OwedPayment:test_ReturnOwedAmount() (gas: 157902)
+OwedPayment:test_ReturnOwedAmount() (gas: 157914)
 OwedPayment:test_ReturnZeroIfTransmitterNotActive() (gas: 11291)
 RequestNewRound:test_RevertIf_NotRequester() (gas: 15094)
 RequestNewRound:test_ShouldRequestNewRound() (gas: 32118)
@@ -85,40 +85,41 @@ SetValidatorConfig:test_EmitsValidatorConfigSet() (gas: 37293)
 TransferPayeeship:test_EmitsPayeeshipTransferredRequested() (gas: 46313)
 TransferPayeeship:test_RevertIf_SenderIsProposed() (gas: 19978)
 TransferPayeeship:test_RevertIf_SenderNotCurrentPayee() (gas: 10713)
-Transmit:test_BothFeedsStalledIncomingPrimaryReportIsFromBeforeCutoffTime() (gas: 417229)
-Transmit:test_BothFeedsStalledIncomingReportIsFromAfterCutoffTime() (gas: 416765)
-Transmit:test_BothFeedsStalledIncomingSecondaryReportIsFromBeforeCutoffTime() (gas: 457955)
-Transmit:test_IncomingSecondaryReportHasNotBeenRecordedOlderThanLatestReportNewerThanCutoffTime() (gas: 490673)
-Transmit:test_IncomingSecondaryReportHasNotBeenRecordedOlderThanLatestReportOlderThanCutoffTime() (gas: 507994)
-Transmit:test_IncomingSecondaryReportRevertsDueToMaxIterations() (gas: 790831)
-Transmit:test_OutOfSyncFeedsPrimaryIsSourcedFromSecondaryWithLockDelay() (gas: 414120)
-Transmit:test_OutOfSyncFeedsSecondaryFeedFallbackToStandardFeed() (gas: 785444)
+Transmit:test_BothFeedsStalledIncomingPrimaryReportIsFromBeforeCutoffTime() (gas: 417253)
+Transmit:test_BothFeedsStalledIncomingReportIsFromAfterCutoffTime() (gas: 416789)
+Transmit:test_BothFeedsStalledIncomingSecondaryReportIsFromBeforeCutoffTime() (gas: 457979)
+Transmit:test_EmitsPrimaryFeedUnlockedWhenPrimaryFeedIsUnlocked() (gas: 239616)
+Transmit:test_IncomingSecondaryReportHasNotBeenRecordedOlderThanLatestReportNewerThanCutoffTime() (gas: 491369)
+Transmit:test_IncomingSecondaryReportHasNotBeenRecordedOlderThanLatestReportOlderThanCutoffTime() (gas: 508018)
+Transmit:test_IncomingSecondaryReportRevertsDueToMaxIterations() (gas: 790891)
+Transmit:test_OutOfSyncFeedsPrimaryIsSourcedFromSecondaryWithLockDelay() (gas: 414189)
+Transmit:test_OutOfSyncFeedsSecondaryFeedFallbackToStandardFeed() (gas: 785492)
 Transmit:test_ReadExpectedInitialState() (gas: 146325)
-Transmit:test_RevertIf_CalldataLengthMismatch() (gas: 23373)
+Transmit:test_RevertIf_CalldataLengthMismatch() (gas: 23351)
 Transmit:test_RevertIf_ConfigDigestMismatch() (gas: 20923)
 Transmit:test_RevertIf_DuplicateSigner() (gas: 89805)
 Transmit:test_RevertIf_MedianIsOutOfMinMaxRange() (gas: 155167)
-Transmit:test_RevertIf_NumObservationsOutOfBounds() (gas: 95658)
+Transmit:test_RevertIf_NumObservationsOutOfBounds() (gas: 95636)
 Transmit:test_RevertIf_ReportLengthMismatch() (gas: 78027)
-Transmit:test_RevertIf_SendTheSameReportAlternateFirstPrimaryFeed() (gas: 337063)
-Transmit:test_RevertIf_SendTheSameReportAlternateFirstSecondaryFeed() (gas: 334495)
-Transmit:test_RevertIf_SendTheSameReportTwiceToThePrimaryFeed() (gas: 265425)
-Transmit:test_RevertIf_SendTheSameReportTwiceToTheSecondaryFeed() (gas: 266117)
+Transmit:test_RevertIf_SendTheSameReportAlternateFirstPrimaryFeed() (gas: 337053)
+Transmit:test_RevertIf_SendTheSameReportAlternateFirstSecondaryFeed() (gas: 335777)
+Transmit:test_RevertIf_SendTheSameReportTwiceToThePrimaryFeed() (gas: 265437)
+Transmit:test_RevertIf_SendTheSameReportTwiceToTheSecondaryFeed() (gas: 266129)
 Transmit:test_RevertIf_SignatureError() (gas: 86518)
 Transmit:test_RevertIf_SignaturesOutOfRegistration() (gas: 25139)
 Transmit:test_RevertIf_TooFewValuesToTrustMedian() (gas: 69820)
 Transmit:test_RevertIf_UnauthorizedTransmitter() (gas: 14171)
 Transmit:test_RevertIf_WrongNumberOfSignatures() (gas: 25000)
-Transmit:test_SyncFeedsTransmitSecondaryFirstAlwaysSameBlock() (gas: 465213)
-Transmit:test_SyncFeedsTransmitSecondaryFirstNeverSameBlock() (gas: 466181)
-Transmit:test_SyncFeedsTransmitStandardFirstAlwaysSameBlock() (gas: 466664)
-Transmit:test_SyncFeedsTransmitStandardFirstNeverSameBlock() (gas: 508501)
+Transmit:test_SyncFeedsTransmitSecondaryFirstAlwaysSameBlock() (gas: 467777)
+Transmit:test_SyncFeedsTransmitSecondaryFirstNeverSameBlock() (gas: 468745)
+Transmit:test_SyncFeedsTransmitStandardFirstAlwaysSameBlock() (gas: 466688)
+Transmit:test_SyncFeedsTransmitStandardFirstNeverSameBlock() (gas: 508525)
 TypeAndVersion:test_IsCorrect() (gas: 10130)
 ValidateAnswer:test_RevertIf_InsufficientGas() (gas: 329840)
-ValidateAnswer:test_ValidateWithContractAddress() (gas: 374085)
-ValidateAnswer:test_ValidateWithZeroAddressContract() (gas: 244497)
+ValidateAnswer:test_ValidateWithContractAddress() (gas: 374097)
+ValidateAnswer:test_ValidateWithZeroAddressContract() (gas: 244509)
 Version:test_ReturnsTheCorrectVersion() (gas: 8703)
-WithdrawFunds:test_RevertIf_InsufficientBalance() (gas: 337700)
+WithdrawFunds:test_RevertIf_InsufficientBalance() (gas: 337712)
 WithdrawFunds:test_RevertIf_InsufficientFunds() (gas: 191296)
 WithdrawFunds:test_RevertIf_NotOwner() (gas: 14903)
 WithdrawPayment:test_PaysOracles() (gas: 234993)

contracts/src/v0.8/feeds/test/DualAggregator.t.sol

@@ -602,6 +602,8 @@ contract Transmit is ConfiguredDualAggregatorBaseTest {
     uint32 timestamp;
   }
 
+  event PrimaryFeedUnlocked(uint32 indexed primaryRoundId);
+
   function setUp() public override {
     super.setUp();
 
@@ -1461,6 +1463,25 @@ contract Transmit is ConfiguredDualAggregatorBaseTest {
     );
   }
 
+  function test_EmitsPrimaryFeedUnlockedWhenPrimaryFeedIsUnlocked() public {
+    _changePrank(s_aggregator.getTransmitters()[0]);
+
+    Report memory report1 = Report({price: 1, timestamp: uint32(block.timestamp)});
+    ReportGenerator.SignedReport memory signedReport1 =
+      s_reportGenerator.generateSignedReport(report1.price, report1.timestamp);
+
+    // transmit to secondary
+    s_aggregator.transmitSecondary(
+      signedReport1.reportContext, signedReport1.report, signedReport1.rs, signedReport1.ss, signedReport1.rawVs
+    );
+
+    vm.expectEmit();
+    emit PrimaryFeedUnlocked(1);
+    s_aggregator.transmit(
+      signedReport1.reportContext, signedReport1.report, signedReport1.rs, signedReport1.ss, signedReport1.rawVs
+    );
+  }
+
   function _transmitAndCheck(
     ReportGenerator.SignedReport memory signedReport,
     int256 expectedStandardFeedAnswer,
@@ -1470,14 +1491,14 @@ contract Transmit is ConfiguredDualAggregatorBaseTest {
   ) internal {
     _changePrank(s_aggregator.getTransmitters()[0]);
 
-    if (transmitSecondary) {
-      s_aggregator.transmitSecondary(
+    if (transmitPrimary) {
+      s_aggregator.transmit(
         signedReport.reportContext, signedReport.report, signedReport.rs, signedReport.ss, signedReport.rawVs
       );
     }
 
-    if (transmitPrimary) {
-      s_aggregator.transmit(
+    if (transmitSecondary) {
+      s_aggregator.transmitSecondary(
         signedReport.reportContext, signedReport.report, signedReport.rs, signedReport.ss, signedReport.rawVs
       );
     }