[lit] Fix several tests that fail when using Python 3 or on Windows

Summary:
1) In logtest.cpp, the name of the file that is reported is not always capitalized, so split the comparison to validate the file (case insensitive) and function (case sensitive) separately
2) Update the gdb remote client tests to work with Python 3. In Python 3, socket sends/receives data as bytes rather than byte strings. This also updates the usage of .hex() - this is no longer available in Python 3, so use hexlify instead

Reviewers: asmith, labath, zturner

Reviewed By: labath

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D46773

llvm-svn: 332293

lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py

@@ -1,4 +1,5 @@
 import lldb
+import binascii
 from lldbsuite.test.lldbtest import *
 from lldbsuite.test.decorators import *
 from gdbclientutils import *
@@ -25,7 +26,7 @@ def qfThreadInfo(self):
 
             # Then, when we are asked to attach, error out.
             def vAttach(self, pid):
-                return "E42;" + error_msg.encode("hex")
+                return "E42;" + binascii.hexlify(error_msg.encode()).decode()
 
         self.server.responder = MyResponder()
 

lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py

@@ -76,7 +76,7 @@ def hex_decode_bytes(hex_bytes):
 
 class MockGDBServerResponder:
     """
-    A base class for handing client packets and issuing server responses for
+    A base class for handling client packets and issuing server responses for
     GDB tests.
 
     This handles many typical situations, while still allowing subclasses to
@@ -278,10 +278,14 @@ def _run(self):
                 data = self._client.recv(4096)
                 if data is None or len(data) == 0:
                     break
+                # In Python 2, sockets return byte strings. In Python 3, sockets return bytes.
+                # If we got bytes (and not a byte string), decode them to a string for later handling.
+                if isinstance(data, bytes) and not isinstance(data, str):
+                    data = data.decode()
+                self._receive(data)
             except Exception as e:
                 self._client.close()
                 break
-            self._receive(data)
 
     def _receive(self, data):
         """
@@ -329,7 +333,7 @@ def _parsePacket(self):
                 i += 1
             else:
                 raise self.InvalidPacketException(
-                        "Unexexpected leading byte: %s" % data[0])
+                        "Unexpected leading byte: %s" % data[0])
 
         # If we're looking beyond the start of the received data, then we're
         # looking for the end of the packet content, denoted by a #.
@@ -370,9 +374,9 @@ def _handlePacket(self, packet):
             return
         response = ""
         # We'll handle the ack stuff here since it's not something any of the
-        # tests will be concerned about, and it'll get turned off quicly anyway.
+        # tests will be concerned about, and it'll get turned off quickly anyway.
         if self._shouldSendAck:
-            self._client.sendall('+')
+            self._client.sendall('+'.encode())
         if packet == "QStartNoAckMode":
             self._shouldSendAck = False
             response = "OK"
@@ -382,6 +386,10 @@ def _handlePacket(self, packet):
         # Handle packet framing since we don't want to bother tests with it.
         if response is not None:
             framed = frame_packet(response)
+            # In Python 2, sockets send byte strings. In Python 3, sockets send bytes.
+            # If we got a string (and not a byte string), encode it before sending.
+            if isinstance(framed, str) and not isinstance(framed, bytes):
+                framed = framed.encode()
             self._client.sendall(framed)
 
     PACKET_ACK = object()
@@ -459,6 +467,7 @@ def assertPacketLogContains(self, packets):
         i = 0
         j = 0
         log = self.server.responder.packetLog
+
         while i < len(packets) and j < len(log):
             if log[j] == packets[i]:
                 i += 1

lldb/unittests/Utility/LogTest.cpp

@@ -225,12 +225,17 @@ TEST_F(LogChannelEnabledTest, log_options) {
     EXPECT_EQ(1, sscanf(Msg.str().c_str(), "%d Hello World", &seq_no));
   }
 
-  EXPECT_TRUE(EnableChannel(getStream(), LLDB_LOG_OPTION_PREPEND_FILE_FUNCTION,
-                            "chan", {}, Err));
-  EXPECT_EQ(
-      "LogTest.cpp:logAndTakeOutput                                 Hello "
-      "World\n",
-      logAndTakeOutput("Hello World"));
+  {
+    EXPECT_TRUE(EnableChannel(getStream(), LLDB_LOG_OPTION_PREPEND_FILE_FUNCTION,
+                              "chan", {}, Err));
+    llvm::StringRef Msg = logAndTakeOutput("Hello World");
+    char File[12];
+    char Function[17];
+
+    sscanf(Msg.str().c_str(), "%[^:]:%s                                 Hello World", File, Function);
+    EXPECT_STRCASEEQ("LogTest.cpp", File);
+    EXPECT_STREQ("logAndTakeOutput", Function);
+  }
 
   EXPECT_TRUE(EnableChannel(
       getStream(), LLDB_LOG_OPTION_PREPEND_PROC_AND_THREAD, "chan", {}, Err));