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Tue, 02 Jun 2026 08:52:25 -0700 (PDT) Sender: John Kacur From: John Kacur To: linux-trace-kernel@vger.kernel.org Cc: Steven Rostedt , Tomas Glozar , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] rtla/timerlat: Add tests for option parsing with attached arguments Date: Tue, 2 Jun 2026 11:52:08 -0400 Message-ID: <20260602155210.60439-2-jkacur@redhat.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260602155210.60439-1-jkacur@redhat.com> References: <20260602155210.60439-1-jkacur@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add tests to verify that numeric arguments work correctly with both attached and detached formats: -p 100 (short with space) -p100 (short without space) --period=100 (long with =) --period 100 (long with space) These tests prevent regression of the bug fixed in commit eefa8af46ff7 ("rtla/timerlat: Fix parsing of short options with attached arguments") where -p100 was incorrectly parsed as multiple separate options. The tests verify that: 1. All four argument formats succeed (exit code 0) 2. None trigger the "no-irq and no-thread" error that occurred when the bug was present Assisted-by: Claude:claude-sonnet-4-5 Signed-off-by: John Kacur --- tools/tracing/rtla/tests/timerlat.t | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/tools/tracing/rtla/tests/timerlat.t b/tools/tracing/rtla/tests/timerlat.t index fd4935fd7b49..1a63301f5d70 100644 --- a/tools/tracing/rtla/tests/timerlat.t +++ b/tools/tracing/rtla/tests/timerlat.t @@ -42,6 +42,16 @@ check "verify -c/--cpus" \ check "hist test in nanoseconds" \ "timerlat hist -i 2 -c 0 -n -d 10s" 2 "ns" +# Option parsing tests - verify attached numeric arguments work correctly +check "verify -p with space" \ + "timerlat hist -p 100 -c 0 -d 1s" 0 "" "no-irq and no-thread" +check "verify -p without space (attached argument)" \ + "timerlat hist -p100 -c 0 -d 1s" 0 "" "no-irq and no-thread" +check "verify --period with equals" \ + "timerlat hist --period=100 -c 0 -d 1s" 0 "" "no-irq and no-thread" +check "verify --period with space" \ + "timerlat hist --period 100 -c 0 -d 1s" 0 "" "no-irq and no-thread" + # Actions tests check "trace output through -t" \ "timerlat hist -T 2 -t" 2 "^ Saving trace to timerlat_trace.txt$" -- 2.54.0