diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,13 @@
 <!-- Unreleased: append new entries here -->
 
 
+0.1.2
+=====
+* [!1017](https://gitlab.com/morley-framework/morley/-/merge_requests/1017)
+  Resolve some TODOs and link TODOs without issue id to the corresponding gitlab tickets.
+* [!1082](https://gitlab.com/morley-framework/morley/-/merge_requests/1082)
+  Fix/drop/comment noncanonical Show instances
+
 0.1.1
 =====
 * [!1094](https://gitlab.com/morley-framework/morley/-/merge_requests/1094)
diff --git a/morley-client.cabal b/morley-client.cabal
--- a/morley-client.cabal
+++ b/morley-client.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           morley-client
-version:        0.1.1
+version:        0.1.2
 synopsis:       Client to interact with the Tezos blockchain
 description:    A client to interact with the Tezos blockchain, by use of the tezos-node RPC and/or of the tezos-client binary.
 category:       Blockchain
diff --git a/src/Morley/Client/Action/Origination/Large.hs b/src/Morley/Client/Action/Origination/Large.hs
--- a/src/Morley/Client/Action/Origination/Large.hs
+++ b/src/Morley/Client/Action/Origination/Large.hs
@@ -1,10 +1,7 @@
 -- SPDX-FileCopyrightText: 2021 Oxhead Alpha
 -- SPDX-License-Identifier: LicenseRef-MIT-OA
 
--- TODO: ideally the "originator" contract would be the same for every large
--- contract, but due to a bug (tezos/tezos/1154) we cannot push @big_map@s right
--- before calling @CREATE_CONTRACT@, so we have to store those in the originator.
--- When that bug gets fixed we should reconsider changing the implementation.
+-- TODO [#606]: reconsider the implementation
 
 -- | Functions to originate large smart contracts via @tezos-client@ and node RPC.
 --
diff --git a/src/Morley/Client/OnlyRPC.hs b/src/Morley/Client/OnlyRPC.hs
--- a/src/Morley/Client/OnlyRPC.hs
+++ b/src/Morley/Client/OnlyRPC.hs
@@ -136,7 +136,7 @@
   -- We return a dummy value here, because this function is used in a lot of
   -- places and with an exception here it's not possible to send transactions.
   -- So be aware of this and do not rely on this value!
-  -- TODO #652: consider using a `Map` instead
+  -- TODO [#652]: consider using a `Map` instead
   getAlias _ = pure (mkAlias "MorleyOnlyRpc")
 
   -- Actions that are not supported and simply throw exceptions.
diff --git a/src/Morley/Client/RPC/Class.hs b/src/Morley/Client/RPC/Class.hs
--- a/src/Morley/Client/RPC/Class.hs
+++ b/src/Morley/Client/RPC/Class.hs
@@ -2,7 +2,7 @@
 -- SPDX-License-Identifier: LicenseRef-MIT-OA
 
 -- | An abstraction layer over RPC implementation.
--- The primary reason it exists is to make it possible to mock
+-- The primary reason it exists is to make it possible to fake
 -- RPC in tests.
 
 module Morley.Client.RPC.Class
diff --git a/src/Morley/Client/RPC/Error.hs b/src/Morley/Client/RPC/Error.hs
--- a/src/Morley/Client/RPC/Error.hs
+++ b/src/Morley/Client/RPC/Error.hs
@@ -10,7 +10,6 @@
   ) where
 
 import Fmt (Buildable(..), blockListF, pretty, (+|), (|+))
-import Text.Show qualified (show)
 
 import Morley.Micheline (Expression)
 import Morley.Tezos.Address
@@ -99,6 +98,7 @@
 data UnexpectedErrors
   = UnexpectedRunErrors [RunError]
   | UnexpectedInternalErrors [InternalError]
+  deriving stock (Show)
 
 instance Buildable UnexpectedErrors where
   build = \case
@@ -108,9 +108,6 @@
     UnexpectedInternalErrors errs ->
       "RPC failed with unexpected internal errors:\n" +|
       mconcat (map ((<> "\n\n") . build) errs) |+ ""
-
-instance Show UnexpectedErrors where
-  show = pretty
 
 instance Exception UnexpectedErrors where
   displayException = pretty
diff --git a/src/Morley/Client/RPC/Getters.hs b/src/Morley/Client/RPC/Getters.hs
--- a/src/Morley/Client/RPC/Getters.hs
+++ b/src/Morley/Client/RPC/Getters.hs
@@ -37,7 +37,6 @@
 import Fmt (Buildable(..), pretty, (+|), (|+))
 import Network.HTTP.Types.Status (statusCode)
 import Servant.Client (ClientError(..), responseStatusCode)
-import Text.Show qualified
 
 import Lorentz (NicePackedValue, NiceUnpackedValue, niceUnpackedValueEvi, valueToScriptExpr)
 import Lorentz.Value
@@ -55,9 +54,8 @@
 import Morley.Client.RPC.Types
 
 data ContractGetCounterAttempt = ContractGetCounterAttempt Address
+  deriving stock (Show)
 instance Exception ContractGetCounterAttempt
-instance Show ContractGetCounterAttempt where
-  show = pretty
 instance Buildable ContractGetCounterAttempt where
   build (ContractGetCounterAttempt addr) =
     "Failed to get counter of contract '" <> build addr <> "', " <>
@@ -65,18 +63,16 @@
 
 -- | Failed to decode received value to the given type.
 data ValueDecodeFailure = ValueDecodeFailure Text T
+  deriving stock (Show)
 instance Exception ValueDecodeFailure
-instance Show ValueDecodeFailure where
-  show = pretty
 instance Buildable ValueDecodeFailure where
   build (ValueDecodeFailure desc ty) =
     "Failed to decode value with expected type " <> build ty <> " \
     \for '" <> build desc <> "'"
 
 data ValueNotFound = ValueNotFound
+  deriving stock (Show)
 instance Exception ValueNotFound
-instance Show ValueNotFound where
-  show = pretty
 instance Buildable ValueNotFound where
   build ValueNotFound =
     "Value with such coordinates is not found in contract big maps"
diff --git a/src/Morley/Client/TezosClient/Class.hs b/src/Morley/Client/TezosClient/Class.hs
--- a/src/Morley/Client/TezosClient/Class.hs
+++ b/src/Morley/Client/TezosClient/Class.hs
@@ -2,7 +2,7 @@
 -- SPDX-License-Identifier: LicenseRef-MIT-OA
 
 -- | Abstraction layer for @tezos-client@ functionality.
--- We use it to mock @tezos-client@ in tests.
+-- We use it to fake @tezos-client@ in tests.
 
 module Morley.Client.TezosClient.Class
   ( HasTezosClient (..)
diff --git a/test/Test/BigMapGet.hs b/test/Test/BigMapGet.hs
--- a/test/Test/BigMapGet.hs
+++ b/test/Test/BigMapGet.hs
@@ -29,7 +29,7 @@
   { hGetContractBigMap = \blkId addr GetBigMap{..} -> do
       assertHeadBlockId blkId
       st <- get
-      case lookup addr (msContracts st) of
+      case lookup addr (fsContracts st) of
         Nothing -> throwM $ UnknownContract $ AddressResolved addr
         Just ContractState{..} -> case csContractData of
           ImplicitContractData _ -> throwM $ UnexpectedImplicitContract addr
@@ -40,10 +40,10 @@
               Just serializedValue -> pure $ GetBigMapResult $ decodeExpression serializedValue
   }
 
-mockStateWithBigMapContract
-  :: MockState
-mockStateWithBigMapContract = defaultMockState
-  { msContracts = fromList $
+fakeStateWithBigMapContract
+  :: FakeState
+fakeStateWithBigMapContract = defaultFakeState
+  { fsContracts = fromList $
     [ (genesisAddress1, dumbContractState
         { csContractData = (csContractData dumbContractState) & \case
             ContractData os _ -> ContractData os $ Just $
@@ -58,21 +58,21 @@
     bigMapId = BigMapId 123
 
 test_BigMapGetUnit :: TestTree
-test_BigMapGetUnit = testGroup "Mock test big map getter"
+test_BigMapGetUnit = testGroup "Fake test big map getter"
   [ testCase "Successful big map get" $ handleSuccessfulGet $
-    runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+    runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
       readContractBigMapValue @'TInt @'TInt genesisAddress1 $
         L.toVal (3 :: Integer)
   , testCase "Value not found in big map" $ handleValueNotFound $
-    runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+    runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
       readContractBigMapValue @'TInt @'TInt genesisAddress1 $
         L.toVal (4 :: Integer)
   , testCase "Contract without big map" $ handleContractWithoutBigMap $
-    runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+    runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
       readContractBigMapValue @'TInt @'TInt genesisAddress2 $
         L.toVal (2 :: Integer)
   , testCase "Big map get for unknown contract" $ handleUnknownContract $
-    runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+    runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
       readContractBigMapValue @'TInt @'TInt genesisAddress3 $
         L.toVal (2 :: Integer)
   ]
diff --git a/test/Test/Fees.hs b/test/Test/Fees.hs
--- a/test/Test/Fees.hs
+++ b/test/Test/Fees.hs
@@ -21,10 +21,10 @@
 import Test.Util
 import TestM
 
-mockState
-  :: MockState
-mockState = defaultMockState
-  { msContracts = fromList $
+fakeState
+  :: FakeState
+fakeState = defaultFakeState
+  { fsContracts = fromList $
     [ (genesisAddress1, dumbImplicitContractState)
     , (genesisAddress2, dumbContractState)
     ]
@@ -34,7 +34,7 @@
 countForgesHandlers = chainOperationHandlers
   { hForgeOperation = \blkId op -> do
       assertHeadBlockId blkId
-      liftToMockTest $ modify (+1)
+      liftToFakeTest $ modify (+1)
       hForgeOperation chainOperationHandlers blkId op
 
   , hRunOperation = \blkId RunOperation{..} -> do
@@ -60,7 +60,7 @@
 runForgesCountingTest :: HasCallStack => TestT (State Word) a -> Word
 runForgesCountingTest action = do
   let (res, count) =
-        usingState 0 $ runMockTestT countForgesHandlers mockState action
+        usingState 0 $ runFakeTestT countForgesHandlers fakeState action
   case res of
     Left e -> error . toText $ "Test action failed: " <> displayException e
     Right _ -> count
diff --git a/test/Test/KeyRevealing.hs b/test/Test/KeyRevealing.hs
--- a/test/Test/KeyRevealing.hs
+++ b/test/Test/KeyRevealing.hs
@@ -17,18 +17,18 @@
 import Test.Util
 import TestM
 
-mockState :: MockState
-mockState = defaultMockState
-  { msContracts = one ( genesisAddress1
+fakeState :: FakeState
+fakeState = defaultFakeState
+  { fsContracts = one ( genesisAddress1
                       , dumbImplicitContractState
                           { csContractData = ImplicitContractData $ Just dumbManagerKey }
                       )
   }
 
 test_keyRevealing :: TestTree
-test_keyRevealing = testGroup "Mock test key revealing"
+test_keyRevealing = testGroup "Fake test key revealing"
   [ testCase "Manager key for new address is revealed only once for transfer" $ handleSuccess $
-    runMockTest chainOperationHandlers mockState $ do
+    runFakeTest chainOperationHandlers fakeState $ do
       senderAddress <- genKey $ AnAlias "sender"
       dummyTransfer genesisAddress1 senderAddress
       mbManagerKey <- getManagerKey senderAddress
@@ -47,7 +47,7 @@
         (dummyTransfer senderAddress genesisAddress1)
 
   , testCase "Manager key for new address is revealed only once for origination" $ handleSuccess $
-    runMockTest chainOperationHandlers mockState $ do
+    runFakeTest chainOperationHandlers fakeState $ do
       originatorAddress <- genKey $ AnAlias "originator"
       dummyTransfer genesisAddress1 originatorAddress
 
@@ -67,7 +67,7 @@
         (originateDummy originatorAddress)
 
   , testCase "Transfer from contract fails with proper error message, without details about revealing" $
-    (runMockTest chainOperationHandlers mockState $ do
+    (runFakeTest chainOperationHandlers fakeState $ do
       (_, addr) <- originateDummy genesisAddress1
       dummyTransfer addr genesisAddress1)
     &
diff --git a/test/Test/Origination.hs b/test/Test/Origination.hs
--- a/test/Test/Origination.hs
+++ b/test/Test/Origination.hs
@@ -18,10 +18,10 @@
 import Test.Util
 import TestM
 
-mockState
-  :: MockState
-mockState = defaultMockState
-  { msContracts = fromList $
+fakeState
+  :: FakeState
+fakeState = defaultFakeState
+  { fsContracts = fromList $
     [ (genesisAddress1, dumbImplicitContractState)
     , (genesisAddress2, dumbContractState)
     ]
@@ -34,11 +34,11 @@
 test_lRunTransactionsUnit :: TestTree
 test_lRunTransactionsUnit = testGroup "Mock test transaction sending"
   [ testCase "Successful origination" $ handleSuccess $
-    runMockTest chainOperationHandlers mockState $
+    runFakeTest chainOperationHandlers fakeState $
       lOriginateContract True "dummy" (AddressResolved genesisAddress1) [tz|100500u|]
       dumbLorentzContract () Nothing
   , testCase "Originator doesn't exist" $ handleUnknownContract $
-    runMockTest chainOperationHandlers mockState $
+    runFakeTest chainOperationHandlers fakeState $
       lOriginateContract True "dummy" (AddressResolved genesisAddress3) [tz|100500u|]
       dumbLorentzContract () Nothing
   ]
diff --git a/test/Test/ParameterTypeGet.hs b/test/Test/ParameterTypeGet.hs
--- a/test/Test/ParameterTypeGet.hs
+++ b/test/Test/ParameterTypeGet.hs
@@ -48,10 +48,10 @@
 smartContractAddr2 = ContractAddress contractHash2
 smartContractAddr3 = ContractAddress contractHash3
 
-mockStateWithSmartContracts
-  :: MockState
-mockStateWithSmartContracts = defaultMockState
-  { msContracts = fromList $
+fakeStateWithSmartContracts
+  :: FakeState
+fakeStateWithSmartContracts = defaultFakeState
+  { fsContracts = fromList $
     [ (smartContractAddr1, buildSmartContractState "lol" (testContract @Natural))
     , (smartContractAddr2, buildSmartContractState "kek" (testContract @Bool))
     , (genesisAddress1, dumbImplicitContractState)
@@ -59,9 +59,9 @@
   }
 
 test_parameterTypeGetUnit :: TestTree
-test_parameterTypeGetUnit = testGroup "Mock test big map getter"
+test_parameterTypeGetUnit = testGroup "Fake test big map getter"
   [ testCase "Only parameters for smart contracts are extracted" $ expectContractMap
-    (runMockTest chainOperationHandlers mockStateWithSmartContracts $
+    (runFakeTest chainOperationHandlers fakeStateWithSmartContracts $
       getContractsParameterTypes
       [genesisAddress1, smartContractAddr1, smartContractAddr2]
     ) $ fromList
@@ -70,7 +70,7 @@
     ]
   , testCase "Parameter type for nonexistent smart contract is not extracted" $
     expectContractMap
-    (runMockTest chainOperationHandlers mockStateWithSmartContracts $
+    (runFakeTest chainOperationHandlers fakeStateWithSmartContracts $
       getContractsParameterTypes
       [smartContractAddr3]
     ) $ Map.empty
diff --git a/test/Test/ReadBigMapValue.hs b/test/Test/ReadBigMapValue.hs
--- a/test/Test/ReadBigMapValue.hs
+++ b/test/Test/ReadBigMapValue.hs
@@ -22,10 +22,10 @@
   { hGetBigMapValue = handleGetBigMapValue
   }
 
-mockStateWithBigMapContract
-  :: MockState
-mockStateWithBigMapContract = defaultMockState
-  { msContracts = fromList $
+fakeStateWithBigMapContract
+  :: FakeState
+fakeStateWithBigMapContract = defaultFakeState
+  { fsContracts = fromList $
     [ (genesisAddress1, dumbContractState
          { csContractData = (csContractData dumbContractState) & \case
              ContractData os _ -> ContractData os $ Just $
@@ -52,7 +52,7 @@
   testGroup "readBigMapValue"
     [ testCase "Retrieves existing value" $
         resultShouldBe 5 $
-          runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+          runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
             readBigMapValue validBigMapId (3 :: Integer)
     ]
 
@@ -61,14 +61,14 @@
   testGroup "readBigMapValueMaybe"
     [ testCase "Retrieves existing value" $
         resultShouldBe (Just 5) $
-          runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+          runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
             readBigMapValueMaybe validBigMapId (3 :: Integer)
     , testCase "Returns Nothing when contract does not exist" $
         resultShouldBe Nothing $
-          runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+          runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
             readBigMapValueMaybe invalidBigMapId (3 :: Integer)
     , testCase "Returns Nothing when key does not exist" $
         resultShouldBe Nothing $
-          runMockTest bigMapGetHandlers mockStateWithBigMapContract $
+          runFakeTest bigMapGetHandlers fakeStateWithBigMapContract $
             readBigMapValueMaybe validBigMapId (9 :: Integer)
     ]
diff --git a/test/Test/Transaction.hs b/test/Test/Transaction.hs
--- a/test/Test/Transaction.hs
+++ b/test/Test/Transaction.hs
@@ -18,27 +18,27 @@
 import Test.Util
 import TestM
 
-mockState
-  :: MockState
-mockState = defaultMockState
-  { msContracts = fromList $
+fakeState
+  :: FakeState
+fakeState = defaultFakeState
+  { fsContracts = fromList $
     [ (genesisAddress1, dumbImplicitContractState)
     , (genesisAddress2, dumbContractState)
     ]
   }
 
 test_lRunTransactionsUnit :: TestTree
-test_lRunTransactionsUnit = testGroup "Mock test transaction sending"
+test_lRunTransactionsUnit = testGroup "Fake test transaction sending"
   [ testCase "Successful transaction" $ handleSuccess $
-    runMockTest chainOperationHandlers mockState $
+    runFakeTest chainOperationHandlers fakeState $
       lTransfer genesisAddress1 genesisAddress2
         [tz|10u|] DefEpName () Nothing
   , testCase "Sender doesn't exist" $ handleUnknownContract $
-    runMockTest chainOperationHandlers mockState $
+    runFakeTest chainOperationHandlers fakeState $
       lTransfer genesisAddress3 genesisAddress2
         [tz|10u|] DefEpName () Nothing
   , testCase "Destination doesn't exist" $ handleUnknownContract $
-    runMockTest chainOperationHandlers mockState $
+    runFakeTest chainOperationHandlers fakeState $
       lTransfer genesisAddress1 genesisAddress3
         [tz|10u|] DefEpName () Nothing
   ]
diff --git a/test/Test/Util.hs b/test/Test/Util.hs
--- a/test/Test/Util.hs
+++ b/test/Test/Util.hs
@@ -1,7 +1,7 @@
 -- SPDX-FileCopyrightText: 2021 Oxhead Alpha
 -- SPDX-License-Identifier: LicenseRef-MIT-OA
 
--- | Module with various helpers that are used in morley-client mock tests.
+-- | Module with various helpers that are used in morley-client fake tests.
 module Test.Util
   ( chainOperationHandlers
   , dumbContractState
@@ -45,7 +45,7 @@
 import TestM
 
 -- | Function to convert given map to big map representation
--- used in mock state.
+-- used in fake state.
 mapToContractStateBigMap
   :: forall k v. (NicePackedValue k, NicePackedValue v)
   => BigMapId k v -> Map k v -> ContractStateBigMap
@@ -58,7 +58,7 @@
   , csbmId = bigMapId
   }
 
--- | Initial simple contract mock state.
+-- | Initial simple contract fake state.
 dumbContractState :: ContractState
 dumbContractState = ContractState
   { csCounter = 100500
@@ -78,7 +78,7 @@
   , csContractData = ImplicitContractData Nothing
   }
 
--- | Mock handlers used for transaction sending and contract origination.
+-- | Fake handlers used for transaction sending and contract origination.
 chainOperationHandlers :: Monad m => Handlers (TestT m)
 chainOperationHandlers = defaultHandlers
   { hGetBlockHash = handleGetBlockHash
@@ -122,45 +122,45 @@
   unless (blkId == FinalHeadId) do
     throwString "Expected `getBlockHash` to be called with `head~2`."
 
-  MockState{..} <- get
-  pure msFinalHeadBlock
+  FakeState{..} <- get
+  pure fsFinalHeadBlock
 
 handleGetCounter
-  :: ( MonadState MockState m
+  :: ( MonadState FakeState m
      , MonadThrow m
      )
   => BlockId -> Address -> m TezosInt64
 handleGetCounter blk addr = do
   assertHeadBlockId blk
-  MockState{..} <- get
-  case lookup addr msContracts of
+  FakeState{..} <- get
+  case lookup addr fsContracts of
     Nothing -> throwM $ UnknownContract $ AddressResolved addr
     Just ContractState{..} -> pure $ csCounter
 
 handleGetBlockConstants
-  :: MonadState MockState m
+  :: MonadState FakeState m
   => BlockId -> m BlockConstants
 handleGetBlockConstants blkId = do
-  MockState{..} <- get
-  pure $ msBlockConstants blkId
+  FakeState{..} <- get
+  pure $ fsBlockConstants blkId
 
 handleGetProtocolParameters
-  :: (MonadState MockState m, MonadThrow m)
+  :: (MonadState FakeState m, MonadThrow m)
   => BlockId -> m ProtocolParameters
 handleGetProtocolParameters blk = do
   assertHeadBlockId blk
-  MockState{..} <- get
-  pure $ msProtocolParameters
+  FakeState{..} <- get
+  pure $ fsProtocolParameters
 
 handleRunOperation :: Monad m => BlockId -> RunOperation -> TestT m RunOperationResult
 handleRunOperation blk RunOperation{..} = do
   assertHeadBlockId blk
-  MockState{..} <- get
-  -- Ensure that passed chain id matches with one that mock state has
-  unless (roChainId == bcChainId (msBlockConstants blk)) (throwM $ InvalidChainId)
+  FakeState{..} <- get
+  -- Ensure that passed chain id matches with one that fake state has
+  unless (roChainId == bcChainId (fsBlockConstants blk)) (throwM $ InvalidChainId)
   -- As of release of the ithaca protocol, the "branch" field should be "head~2".
   -- https://web.archive.org/web/20220305165609/https://tezos.gitlab.io/protocols/tenderbake.html
-  unless (roiBranch roOperation == msFinalHeadBlock) do
+  unless (roiBranch roOperation == fsFinalHeadBlock) do
     throwM $ InvalidBranch $ roiBranch roOperation
   originatedContracts <- handleRunOperationInternal roOperation
   pure $ mkRunOperationResult originatedContracts
@@ -168,13 +168,13 @@
 handlePreApplyOperation :: Monad m => BlockId -> PreApplyOperation -> TestT m RunOperationResult
 handlePreApplyOperation blk PreApplyOperation{..} = do
   assertHeadBlockId blk
-  MockState{..} <- get
+  FakeState{..} <- get
   -- Ensure that passed protocol matches with one that mock state has
-  unless (paoProtocol == bcProtocol (msBlockConstants blk)) $
+  unless (paoProtocol == bcProtocol (fsBlockConstants blk)) $
     throwM InvalidProtocol
   -- As of release of the ithaca protocol, the "branch" field should be "head~2".
   -- https://web.archive.org/web/20220305165609/https://tezos.gitlab.io/protocols/tenderbake.html
-  unless (paoBranch == msFinalHeadBlock) do
+  unless (paoBranch == fsFinalHeadBlock) do
     throwM $ InvalidBranch paoBranch
   originatedContracts <- concatMapM handleTransactionOrOrigination paoContents
   pure $ mkRunOperationResult originatedContracts
@@ -185,7 +185,7 @@
   ms <- get
   -- As of release of the ithaca protocol, the "branch" field should be "head~2".
   -- https://web.archive.org/web/20220305165609/https://tezos.gitlab.io/protocols/tenderbake.html
-  unless (foBranch op == msFinalHeadBlock ms) do
+  unless (foBranch op == fsFinalHeadBlock ms) do
     throwM $ InvalidBranch $ foBranch op
   pure . HexJSONByteString . LBS.toStrict . encode $ op
 
@@ -196,19 +196,19 @@
 handleTransactionOrOrigination
   :: Monad m => OperationInput -> TestT m [Address]
 handleTransactionOrOrigination op = do
-  MockState{..} <- get
+  FakeState{..} <- get
   case oiCustom op of
     -- Ensure that transaction sender exists
-    OpTransfer TransactionOperation{..} -> case lookup codSource msContracts of
+    OpTransfer TransactionOperation{..} -> case lookup codSource fsContracts of
       Nothing -> throwM $ UnknownContract $ AddressResolved codSource
       Just ContractState{..} -> do
         -- Ensure that sender counter matches
         unless (csCounter + 1 == codCounter) (throwM CounterMismatch)
-        case lookup toDestination msContracts of
+        case lookup toDestination fsContracts of
           Nothing -> throwM $ UnknownContract $ AddressResolved toDestination
           Just _ -> pure []
     -- Ensure that originator exists
-    OpOriginate _ -> case lookup codSource msContracts of
+    OpOriginate _ -> case lookup codSource fsContracts of
       Nothing -> throwM $ UnknownContract $ AddressResolved codSource
       Just ContractState{..} -> do
         -- Ensure that originator counter matches
@@ -228,7 +228,7 @@
   throwString "Accessing non-head block is not supported in tests"
 
 handleGetContractScript
-  :: ( MonadState MockState m
+  :: ( MonadState FakeState m
      , MonadThrow m
      )
   => BlockId
@@ -236,8 +236,8 @@
   -> m OriginationScript
 handleGetContractScript blockId addr = do
   assertHeadBlockId blockId
-  MockState{..} <- get
-  case lookup addr msContracts of
+  FakeState{..} <- get
+  case lookup addr fsContracts of
     Nothing -> throwM $ err404 path
     Just ContractState{..} -> case csContractData of
       ImplicitContractData _ -> throwM $ UnexpectedImplicitContract addr
@@ -252,7 +252,7 @@
 
   let allBigMaps :: [ContractStateBigMap] =
         catMaybes $
-          Map.elems (msContracts st) <&> \cs -> case (csContractData cs) of
+          Map.elems (fsContracts st) <&> \cs -> case (csContractData cs) of
             ContractData _ bigMapMaybe -> bigMapMaybe
             ImplicitContractData _ -> Nothing
 
@@ -278,11 +278,11 @@
 handleRememberContract replaceExisting addr (getAlias -> alias) = do
   let
     cs = dumbContractState { csAlias = alias }
-    remember addr' cs' MockState{..} =
-      modify $ \s -> s { msContracts = insert addr' cs' msContracts }
+    remember addr' cs' FakeState{..} =
+      modify $ \s -> s { fsContracts = insert addr' cs' fsContracts }
 
-  st@MockState{..} <- get
-  case lookup addr msContracts of
+  st@FakeState{..} <- get
+  case lookup addr fsContracts of
     Nothing -> remember addr cs st
     _       -> bool pass (remember addr cs st) replaceExisting
 
@@ -292,15 +292,15 @@
     addr = detGenKeyAddress (encodeUtf8 $ unsafeGetAliasText alias)
     newContractState = dumbImplicitContractState { csAlias =  alias }
   modify $ \s ->
-    s & msContractsL . at addr ?~ newContractState
+    s & fsContractsL . at addr ?~ newContractState
   pure addr
 
 handleGetAlias :: Monad m => AddressOrAlias -> TestT m Alias
 handleGetAlias = \case
   AddressAlias alias -> pure alias
   AddressResolved addr -> do
-    MockState{..} <- get
-    case lookup addr msContracts of
+    FakeState{..} <- get
+    case lookup addr fsContracts of
       Nothing                -> throwM $ UnknownContract $ AddressResolved addr
       Just ContractState{..} -> pure $ csAlias
 
@@ -308,7 +308,7 @@
 handleGetManagerKey blk addr = do
   assertHeadBlockId blk
   s <- get
-  let mbCs = s ^. msContractsL . at addr
+  let mbCs = s ^. fsContractsL . at addr
   case mbCs of
     Just ContractState{..} -> case csContractData of
       ImplicitContractData mbManagerKey -> pure mbManagerKey
@@ -316,7 +316,7 @@
     Nothing -> throwM $ UnknownContract $ AddressResolved addr
 
 -- In scenarios where the system under test checks for 404 errors, we
--- use this function to mock and simulate those errors.
+-- use this function to fake and simulate those errors.
 err404 :: Text -> ClientError
 err404 path = FailureResponse
   (defaultRequest { requestBody = Nothing, requestPath = (baseUrl , "") })
@@ -339,8 +339,8 @@
 handleResolveAddressMaybe = \case
   AddressResolved addr -> pure (Just addr)
   AddressAlias alias -> do
-    MockState{..} <- get
-    case find checkAlias $ Map.toList msContracts of
+    FakeState{..} <- get
+    case find checkAlias $ Map.toList fsContracts of
       Just (addr, _) -> pure (Just addr)
       Nothing -> pure Nothing
     where
@@ -348,7 +348,7 @@
 
 handleRevealKey :: Monad m => Alias -> Maybe ScrubbedBytes -> TestT m ()
 handleRevealKey alias _ = do
-  contracts <- gets (Map.toList . msContracts)
+  contracts <- gets (Map.toList . fsContracts)
   let contracts' = filter (\(_, ContractState{..}) -> csAlias == alias) contracts
   case contracts' of
     []  -> throwM $ UnknownContract $ AddressAlias alias
@@ -361,13 +361,13 @@
         (KeyAddress _, ImplicitContractData Nothing) ->
             -- We don't care about the public key itself, but only its presence.
             let newContractState = cs { csContractData = ImplicitContractData $ Just dumbManagerKey }
-            in modify $ \s -> s & msContractsL . at addr ?~ newContractState
-        _ -> error "Inconsitent mock state. This most likely a bug in tests."
+            in modify $ \s -> s & fsContractsL . at addr ?~ newContractState
+        _ -> error "Inconsitent fake state. This most likely a bug in tests."
     _   ->
       error $ "Multiple contracts have alias '" +| alias |+
         "'. This is most likely a bug in tests."
 
--- | Dummy public key used in mock tests.
+-- | Dummy public key used in fake tests.
 dumbManagerKey :: PublicKey
 dumbManagerKey = fromRight (error "impossible") $ parsePublicKey
   "edpkuwTWKgQNnhR5v17H2DYHbfcxYepARyrPGbf1tbMoGQAj8Ljr3V"
diff --git a/test/TestM.hs b/test/TestM.hs
--- a/test/TestM.hs
+++ b/test/TestM.hs
@@ -4,25 +4,25 @@
 {-# OPTIONS_GHC -Wno-orphans #-}
 
 -- | Module that defines some basic infrastructure
--- for mocking tezos-node RPC interaction.
+-- for faking tezos-node RPC interaction.
 module TestM
   ( ContractData (..)
   , ContractState (..)
   , ContractStateBigMap (..)
   , Handlers (..)
-  , MockState (..)
+  , FakeState (..)
   , TestError (..)
   , TestHandlers (..)
   , TestM
   , TestT
   , defaultHandlers
-  , defaultMockState
-  , runMockTest
-  , runMockTestT
-  , liftToMockTest
+  , defaultFakeState
+  , runFakeTest
+  , runFakeTestT
+  , liftToFakeTest
 
   -- * Lens
-  , msContractsL
+  , fsContractsL
   ) where
 
 import Colog.Core.Class (HasLog(..))
@@ -48,7 +48,7 @@
 instance IsString Alias where
   fromString = mkAlias . fromString
 
--- | Reader environment to interact with the mock state.
+-- | Reader environment to interact with the fake state.
 data Handlers m = Handlers
   { -- HasTezosRpc
     hGetBlockHash :: BlockId -> m Text
@@ -135,7 +135,7 @@
   , hLogAction = mempty
   }
 
--- | Type to represent contract state in the @MockState@.
+-- | Type to represent contract state in the @FakeState@.
 -- This type can represent both implicit accounts and contracts.
 data ContractState = ContractState
   { csCounter :: TezosInt64
@@ -160,22 +160,22 @@
 newtype TestHandlers m = TestHandlers {unTestHandlers :: Handlers (TestT m)}
 
 -- | Type to represent chain state in mock tests.
-data MockState = MockState
-  { msContracts :: Map Address ContractState
-  , msHeadBlock :: Text
+data FakeState = FakeState
+  { fsContracts :: Map Address ContractState
+  , fsHeadBlock :: Text
   -- ^ Hash of the `head` block
-  , msFinalHeadBlock :: Text
+  , fsFinalHeadBlock :: Text
   -- ^ Hash of the `head~2` block
-  , msBlockConstants :: BlockId -> BlockConstants
-  , msProtocolParameters :: ProtocolParameters
+  , fsBlockConstants :: BlockId -> BlockConstants
+  , fsProtocolParameters :: ProtocolParameters
   }
 
-defaultMockState :: MockState
-defaultMockState = MockState
-  { msContracts = mempty
-  , msHeadBlock = "HEAD"
-  , msFinalHeadBlock = "HEAD~2"
-  , msBlockConstants = \blkId -> BlockConstants
+defaultFakeState :: FakeState
+defaultFakeState = FakeState
+  { fsContracts = mempty
+  , fsHeadBlock = "HEAD"
+  , fsFinalHeadBlock = "HEAD~2"
+  , fsBlockConstants = \blkId -> BlockConstants
     { bcProtocol = "PROTOCOL"
     , bcChainId = "CHAIN_ID"
     , bcHeader = BlockHeaderNoHash
@@ -185,32 +185,32 @@
       }
     , bcHash = BlockHash $ pretty blkId
     }
-  , msProtocolParameters = ProtocolParameters 257 1040000 60000 15
+  , fsProtocolParameters = ProtocolParameters 257 1040000 60000 15
                                               (TezosMutez [tz|250u|])
   }
 
-type TestT m = StateT MockState (ReaderT (TestHandlers m) (CatchT m))
+type TestT m = StateT FakeState (ReaderT (TestHandlers m) (CatchT m))
 
 type TestM = TestT Identity
 
-runMockTestT
+runFakeTestT
   :: forall a m. Monad m =>
-     Handlers (TestT m) -> MockState -> TestT m a -> m (Either SomeException a)
-runMockTestT handlers mockState action =
-  runCatchT $ runReaderT (evalStateT action mockState) (TestHandlers handlers)
+     Handlers (TestT m) -> FakeState -> TestT m a -> m (Either SomeException a)
+runFakeTestT handlers fakeState action =
+  runCatchT $ runReaderT (evalStateT action fakeState) (TestHandlers handlers)
 
-runMockTest
-  :: forall a. Handlers TestM -> MockState -> TestM a -> Either SomeException a
-runMockTest =
-  runIdentity ... runMockTestT
+runFakeTest
+  :: forall a. Handlers TestM -> FakeState -> TestM a -> Either SomeException a
+runFakeTest =
+  runIdentity ... runFakeTestT
 
 getHandler :: Monad m => (Handlers (TestT m) -> fn) -> TestT m fn
 getHandler fn = fn . unTestHandlers <$> ask
 
-liftToMockTest :: Monad m => m a -> TestT m a
-liftToMockTest = lift . lift . lift
+liftToFakeTest :: Monad m => m a -> TestT m a
+liftToFakeTest = lift . lift . lift
 
--- | Various mock test errors.
+-- | Various fake test errors.
 data TestError
   = AlreadyRevealed Address
   | UnexpectedRpcCall Text
@@ -338,4 +338,4 @@
     h <- getHandler hGetDelegateAtBlock
     h block addr
 
-makeLensesFor [("msContracts", "msContractsL")] ''MockState
+makeLensesFor [("fsContracts", "fsContractsL")] ''FakeState
