[lldb-dap] Speed up TestDAP_Progress (#134048)

While trying to make progress on #133782, I noticed that
TestDAP_Progress was taking 90 seconds to complete. This patch brings
that down to 10 seocnds by making the following changes:

1. Don't call `wait_for_event` with a 15 second timeout. By the time we
call this, all progress events have been emitted, which means that we're
just sitting there until we hit the timeout.

2. Don't use 10 steps (= 10 seconds) for indeterminate progress. We have
two indeterminate progress tests so that's 6 seconds instead of 20.

3. Don't launch the process over and over. Once we have a dap session,
we can clear the progress vector and emit new progress events.

Author: JDevlieghere

lldb/test/API/tools/lldb-dap/progress/Progress_emitter.py

@@ -88,11 +88,11 @@ def __call__(self, debugger, command, exe_ctx, result):
             progress = lldb.SBProgress(
                 "Progress tester", "Initial Detail", total, debugger
             )
-        # Check to see if total is set to None to indicate an indeterminate progress
-        # then default to 10 steps.
+        # Check to see if total is set to None to indicate an indeterminate
+        # progress then default to 3 steps.
         with progress:
             if total is None:
-                total = 10
+                total = 3
 
             for i in range(1, total):
                 if cmd_options.no_details:

lldb/test/API/tools/lldb-dap/progress/TestDAP_Progress.py

@@ -19,7 +19,6 @@ def verify_progress_events(
         expected_not_in_message=None,
         only_verify_first_update=False,
     ):
-        self.dap_server.wait_for_event("progressEnd", 15)
         self.assertTrue(len(self.dap_server.progress_events) > 0)
         start_found = False
         update_found = False
@@ -45,20 +44,18 @@ def verify_progress_events(
         self.assertTrue(start_found)
         self.assertTrue(update_found)
         self.assertTrue(end_found)
+        self.dap_server.progress_events.clear()
 
     @skipIfWindows
-    def test_output(self):
+    def test(self):
         program = self.getBuildArtifact("a.out")
         self.build_and_launch(program)
         progress_emitter = os.path.join(os.getcwd(), "Progress_emitter.py")
-        source = "main.cpp"
-        breakpoint_ids = self.set_source_breakpoints(
-            source, [line_number(source, "// break here")]
-        )
-        self.continue_to_breakpoints(breakpoint_ids)
         self.dap_server.request_evaluate(
             f"`command script import {progress_emitter}", context="repl"
         )
+
+        # Test details.
         self.dap_server.request_evaluate(
             "`test-progress --total 3 --seconds 1", context="repl"
         )
@@ -68,19 +65,7 @@ def test_output(self):
             expected_not_in_message="Progress tester",
         )
 
-    @skipIfWindows
-    def test_output_nodetails(self):
-        program = self.getBuildArtifact("a.out")
-        self.build_and_launch(program)
-        progress_emitter = os.path.join(os.getcwd(), "Progress_emitter.py")
-        source = "main.cpp"
-        breakpoint_ids = self.set_source_breakpoints(
-            source, [line_number(source, "// break here")]
-        )
-        self.continue_to_breakpoints(breakpoint_ids)
-        self.dap_server.request_evaluate(
-            f"`command script import {progress_emitter}", context="repl"
-        )
+        # Test no details.
         self.dap_server.request_evaluate(
             "`test-progress --total 3 --seconds 1 --no-details", context="repl"
         )
@@ -90,19 +75,7 @@ def test_output_nodetails(self):
             expected_message="Initial Detail",
         )
 
-    @skipIfWindows
-    def test_output_indeterminate(self):
-        program = self.getBuildArtifact("a.out")
-        self.build_and_launch(program)
-        progress_emitter = os.path.join(os.getcwd(), "Progress_emitter.py")
-        source = "main.cpp"
-        breakpoint_ids = self.set_source_breakpoints(
-            source, [line_number(source, "// break here")]
-        )
-        self.continue_to_breakpoints(breakpoint_ids)
-        self.dap_server.request_evaluate(
-            f"`command script import {progress_emitter}", context="repl"
-        )
+        # Test details indeterminate.
         self.dap_server.request_evaluate("`test-progress --seconds 1", context="repl")
 
         self.verify_progress_events(
@@ -111,19 +84,7 @@ def test_output_indeterminate(self):
             only_verify_first_update=True,
         )
 
-    @skipIfWindows
-    def test_output_nodetails_indeterminate(self):
-        program = self.getBuildArtifact("a.out")
-        self.build_and_launch(program)
-        progress_emitter = os.path.join(os.getcwd(), "Progress_emitter.py")
-        source = "main.cpp"
-        breakpoint_ids = self.set_source_breakpoints(
-            source, [line_number(source, "// break here")]
-        )
-        self.dap_server.request_evaluate(
-            f"`command script import {progress_emitter}", context="repl"
-        )
-
+        # Test no details indeterminate.
         self.dap_server.request_evaluate(
             "`test-progress --seconds 1 --no-details", context="repl"
         )