[lldb][NFC] Rewrite TestQuoting

TestQuoting's different test methods all build their own test binaries but
we can just reuse the same test binary by merging all asserts into one method.
This reduces the test runtime from 8 seconds to 4 seconds on my machine.
This also removes the ability to have partial failures in this test, but given
how rarely this code is touched this seems like a fair tradeoff (and we will be
able to re-add this feature once we updated our test framework).

Some other small changes:
  * Fixed that we cleanup "stdout.txt" instead of "output.txt" in the cleanup.
  * Fixed some formatting issues.
  * Call `build` instead of directly calling `buildDefault`.

lldb/test/API/commands/settings/quoting/TestQuoting.py

@@ -1,10 +1,7 @@
 """
-Test quoting of arguments to lldb commands
+Test quoting of arguments to lldb commands.
 """
 
-
-
-
 import lldb
 from lldbsuite.test.decorators import *
 from lldbsuite.test.lldbtest import *
@@ -14,81 +11,62 @@ from lldbsuite.test import lldbutil
 class SettingsCommandTestCase(TestBase):
 
     mydir = TestBase.compute_mydir(__file__)
+    output_file_name = "output.txt"
 
     @classmethod
     def classCleanup(cls):
         """Cleanup the test byproducts."""
-        cls.RemoveTempFile("stdout.txt")
+        cls.RemoveTempFile(SettingsCommandTestCase.output_file_name)
 
+    @skipIfReproducer  # Reproducers don't know about output.txt
     @no_debug_info_test
-    def test_no_quote(self):
-        self.do_test_args("a b c", "a\0b\0c\0")
-
-    @no_debug_info_test
-    def test_single_quote(self):
-        self.do_test_args("'a b c'", "a b c\0")
-
-    @no_debug_info_test
-    def test_double_quote(self):
-        self.do_test_args('"a b c"', "a b c\0")
-
-    @no_debug_info_test
-    def test_single_quote_escape(self):
-        self.do_test_args("'a b\\' c", "a b\\\0c\0")
-
-    @no_debug_info_test
-    def test_double_quote_escape(self):
-        self.do_test_args('"a b\\" c"', 'a b" c\0')
-
-    @no_debug_info_test
-    def test_double_quote_escape2(self):
-        self.do_test_args('"a b\\\\" c', 'a b\\\0c\0')
-
-    @no_debug_info_test
-    def test_single_in_double(self):
-        self.do_test_args('"a\'b"', "a'b\0")
-
-    @no_debug_info_test
-    def test_double_in_single(self):
-        self.do_test_args("'a\"b'", 'a"b\0')
-
-    @no_debug_info_test
-    def test_combined(self):
-        self.do_test_args('"a b"c\'d e\'', 'a bcd e\0')
-
-    @no_debug_info_test
-    def test_bare_single(self):
-        self.do_test_args("a\\'b", "a'b\0")
-
-    @no_debug_info_test
-    def test_bare_double(self):
-        self.do_test_args('a\\"b', 'a"b\0')
-
-    @skipIfReproducer # Reproducers don't know about output.txt
-    def do_test_args(self, args_in, args_out):
-        """Test argument parsing. Run the program with args_in. The program dumps its arguments
-        to stdout. Compare the stdout with args_out."""
-        self.buildDefault()
-
+    def test(self):
+        self.build()
         exe = self.getBuildArtifact("a.out")
         self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
 
-        local_outfile = self.getBuildArtifact("output.txt")
+        # No quotes.
+        self.expect_args("a b c", "a\0b\0c\0")
+        # Single quotes.
+        self.expect_args("'a b c'", "a b c\0")
+        # Double quotes.
+        self.expect_args('"a b c"', "a b c\0")
+        # Single quote escape.
+        self.expect_args("'a b\\' c", "a b\\\0c\0")
+        # Double quote escape.
+        self.expect_args('"a b\\" c"', 'a b" c\0')
+        self.expect_args('"a b\\\\" c', 'a b\\\0c\0')
+        # Single quote in double quotes.
+        self.expect_args('"a\'b"', "a'b\0")
+        # Double quotes in single quote.
+        self.expect_args("'a\"b'", 'a"b\0')
+        # Combined quotes.
+        self.expect_args('"a b"c\'d e\'', 'a bcd e\0')
+        # Bare single/double quotes.
+        self.expect_args("a\\'b", "a'b\0")
+        self.expect_args('a\\"b', 'a"b\0')
+
+    def expect_args(self, args_in, args_out):
+        """Test argument parsing. Run the program with args_in. The program dumps its arguments
+        to stdout. Compare the stdout with args_out."""
+
+        filename = SettingsCommandTestCase.output_file_name
+
         if lldb.remote_platform:
-            remote_outfile = lldb.remote_platform.GetWorkingDirectory() + "/output.txt"
+            outfile = lldb.remote_platform.GetWorkingDirectory() + filename
         else:
-            remote_outfile = local_outfile
+            outfile = self.getBuildArtifact(filename)
 
-        self.runCmd("process launch -- %s %s" %(remote_outfile, args_in))
+        self.runCmd("process launch -- %s %s" % (outfile, args_in))
 
         if lldb.remote_platform:
-            src_file_spec = lldb.SBFileSpec(remote_outfile, False)
-            dst_file_spec = lldb.SBFileSpec(local_outfile, True)
+            src_file_spec = lldb.SBFileSpec(outfile, False)
+            dst_file_spec = lldb.SBFileSpec(outfile, True)
             lldb.remote_platform.Get(src_file_spec, dst_file_spec)
 
-        with open(local_outfile, 'r') as f:
+        with open(outfile, 'r') as f:
             output = f.read()
 
-        self.RemoveTempFile(local_outfile)
+        self.RemoveTempFile(outfile)
 
         self.assertEqual(output, args_out)