Correct spelling mistakes.

tests/gtest/include/gtest/internal/gtest-filepath.h

@@ -192,7 +192,7 @@ class GTEST_API_ FilePath {
 
   void Normalize();
 
-  // Returns a pointer to the last occurence of a valid path separator in
+  // Returns a pointer to the last occurrence of a valid path separator in
   // the FilePath. On Windows, for example, both '/' and '\' are valid path
   // separators. Returns NULL if no path separator was found.
   const char* FindLastPathSeparator() const;

tests/gtest/src/gtest-filepath.cc

@@ -130,7 +130,7 @@ FilePath FilePath::RemoveExtension(const char* extension) const {
   return *this;
 }
 
-// Returns a pointer to the last occurence of a valid path separator in
+// Returns a pointer to the last occurrence of a valid path separator in
 // the FilePath. On Windows, for example, both '/' and '\' are valid path
 // separators. Returns NULL if no path separator was found.
 const char* FilePath::FindLastPathSeparator() const {

tests/libwallet_api_tests/main.cpp

@@ -841,7 +841,7 @@ struct MyWalletListener : public Monero::WalletListener
     {
         std::cout << "wallet: " << wallet->mainAddress() << "**** just received unconfirmed money ("
                   << txId  << ", " << wallet->displayAmount(amount) << ")" << std::endl;
-        // Don't trigger recieve until tx is mined
+        // Don't trigger receive until tx is mined
         // total_rx += amount;
         // receive_triggered = true;
         // cv_receive.notify_one();

tests/libwallet_api_tests/scripts/README.md

@@ -3,7 +3,7 @@
 ## Environment for the tests
 * Running monero node, linked to private/public testnet. 
   By default, tests expect daemon running at ```localhost:38081```,
-  can we overriden with enviroment variable ```TESTNET_DAEMON_ADDRESS=<your_daemon_address>```
+  can we overriden with environment variable ```TESTNET_DAEMON_ADDRESS=<your_daemon_address>```
   [Manual](https://github.com/moneroexamples/private-testnet) explaining how to run private testnet.
 
 * Directory with pre-generated wallets

tests/unit_tests/ringct.cpp

@@ -132,7 +132,7 @@ TEST(ringct, MG_sigs)
             }
             sk[j] = xx[ind][j];
         }
-        sk[2] = skGen();//asume we don't know one of the private keys..
+        sk[2] = skGen();//assume we don't know one of the private keys..
         IIccss = MLSAG_Gen(message, P, sk, NULL, NULL, ind, R, hw::get_device("default"));
         ASSERT_FALSE(MLSAG_Ver(message, P, IIccss, R));
 }