Add negative integration tests for truncate syscalls (task 348)

Add two negative test scenarios:
- truncate-enoent: SYS_TRUNCATE on nonexistent file, expects ENOENT
- truncate-ftruncate-ebadf: SYS_FTRUNCATE on invalid fd 99999, expects EBADF

Both verify ior captures tracepoints even when syscalls fail.

Amp-Thread-ID: https://ampcode.com/threads/T-019c81b7-9641-763e-b99e-20a0d3552005
Co-authored-by: Amp <amp@ampcode.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/integrationtests/truncate_test.go b/integrationtests/truncate_test.go
index 9b94eed..7d3f12e 100644
--- a/integrationtests/truncate_test.go
+++ b/integrationtests/truncate_test.go
@@ -23,3 +23,24 @@ func TestTruncateFtruncate(t *testing.T) {
 		},
 	})
 }
+
+func TestTruncateEnoent(t *testing.T) {
+	runScenario(t, "truncate-enoent", []ExpectedEvent{
+		{
+			PathContains: "truncate-enoent-missing.txt",
+			Tracepoint:   "enter_truncate",
+			Comm:         "ioworkload",
+			MinCount:     1,
+		},
+	})
+}
+
+func TestTruncateFtruncateEbadf(t *testing.T) {
+	runScenario(t, "truncate-ftruncate-ebadf", []ExpectedEvent{
+		{
+			Tracepoint: "enter_ftruncate",
+			Comm:       "ioworkload",
+			MinCount:   1,
+		},
+	})
+}