Add tests for enabling and disabling timings

src/TrixiBase.jl

@@ -6,7 +6,8 @@ include("trixi_include.jl")
 include("trixi_timeit.jl")
 
 export trixi_include
-export @trixi_timeit, timer, timeit_debug_enabled, disable_debug_timings
+export @trixi_timeit, timer, timeit_debug_enabled,
+       disable_debug_timings, enable_debug_timings
 
 function _precompile_manual_()
     @assert Base.precompile(Tuple{typeof(trixi_include), String})

test/test_timers.jl

@@ -56,4 +56,47 @@
         # Compare against empty timer output
         @test actual == expected
     end
+
+    @testset verbose=true "disable and enable timings" begin
+        # Start with empty timer output
+        TrixiBase.TimerOutputs.reset_timer!(timer())
+
+        # Disable timings
+        disable_debug_timings()
+
+        # These two timings should be disabled
+        @trixi_timeit timer() "test timer" sin(0.0)
+        @trixi_timeit timer() "test timer" sin(0.0)
+
+        # Disable timings
+        enable_debug_timings()
+
+        # This timing should be counted
+        @trixi_timeit timer() "test timer 2" sin(0.0)
+
+        println(timer())
+
+        timer_output = """
+         ─────────────────────────────────────────────────────────────────────────
+                                         Time                    Allocations
+                                ───────────────────────   ────────────────────────
+            Tot / % measured:       23.7ms /   0.0%           1.00MiB /   0.0%
+
+         Section        ncalls     time    %tot     avg     alloc    %tot      avg
+         ─────────────────────────────────────────────────────────────────────────
+         test timer 2        1    875ns  100.0%   875ns     48.0B  100.0%    48.0B
+         ─────────────────────────────────────────────────────────────────────────
+        """
+        # Remove "Tot / % measured" line and trailing white spaces and replace
+        # the "test timer" line (but don't remove it, we want to check that it's there).
+        expected = replace(timer_output, r"Tot / % measured: .*" => "",
+                           r"\s+\n" => "\n",
+                           r"test timer 2        1 .*B\n" => "test timer 2        1")
+        actual = replace(repr(timer()) * "\n", r"Tot / % measured: .*" => "",
+                         r"\s+\n" => "\n",
+                         r"test timer 2        1 .*B\n" => "test timer 2        1")
+
+        # Compare against empty timer output
+        @test actual == expected
+    end
 end;