Add a smaller test for cross-process signals

sporksmith · sporksmith · commit 66a66a585aa8 · 2023-01-27T16:58:53.000-06:00
An earlier version of this PR had a bug in cross-process signals that
was only caught by one of the extra tests (basic-file-transfer).
This is a more focused test for the corresponding functionality.
diff --git a/src/test/signal/CMakeLists.txt b/src/test/signal/CMakeLists.txt
@@ -9,3 +9,12 @@ add_shadow_tests(BASENAME signal)
 ## More complete signal functionality.
 add_linux_tests(BASENAME signals-extra COMMAND sh -c "../../target/debug/test_signals --libc-passing")
 add_shadow_tests(BASENAME signals-extra)
+
+## Basic cross-process signal tests.
+add_shadow_tests(
+    BASENAME signals-multiprocess
+    # `sleep` should die with signal SIGINT (2), giving exitcode 128+2=130
+    POST_CMD "test `cat hosts/*/*.sleep.*.exitcode` -eq 130"
+    # Shadow should return failure
+    EXPECT_ERROR TRUE
+    CHECK_RETVAL FALSE)
diff --git a/src/test/signal/signals-multiprocess.yaml b/src/test/signal/signals-multiprocess.yaml
@@ -0,0 +1,17 @@
+# Test sending a signal between processes.
+# In CMakeLists.txt we validate that `sleep` is killed by the signal.
+general:
+  stop_time: 5
+network:
+  graph:
+    type: 1_gbit_switch
+hosts:
+  mytesthost:
+    network_node_id: 0
+    processes:
+    - path: sleep
+      args: '10'
+      start_time: 1
+    - path: kill 
+      args: -SIGINT '1000'
+      start_time: 2
