BEP: Report stdout/stderr

By recording registering a properly synchronized OutErr as listener
and providing it as OutErrProvider to the BuildEventStreamer.

Change-Id: Id553fcdb85327be28561634268511304fcc2ad3f
PiperOrigin-RevId: 154943162

1 files changed, 16 insertions, 0 deletions

diff --git a/src/test/shell/integration/build_event_stream_test.sh b/src/test/shell/integration/build_event_stream_test.sh
index 32c128612f..f6cd382b84 100755
--- a/src/test/shell/integration/build_event_stream_test.sh
+++ b/src/test/shell/integration/build_event_stream_test.sh
@@ -384,4 +384,20 @@ function test_loading_failure_keep_going() {
 #   expect_not_log 'aborted'
 # }
 
+function test_stdout_stderr_reported() {
+  # Verify that bazel's stdout/stderr is included in the build event stream.
+
+  # Make sure we generate enough output on stderr
+  bazel clean --expunge
+  bazel test --experimental_build_event_text_file=$TEST_log --curses=no \
+        pkg:slow 2>stderr.log || fail "slowtest failed"
+  # Take a line that is likely not the output of an action (possibly reported
+  # independently in the stream) and still characteristic enough to not occur
+  # in the stream by accident. Taking the first line mentioning the test name
+  # is likely some form of progress report.
+  sample_line=`cat stderr.log | grep 'slow' | head -1 | tr '[]' '..'`
+  echo "Sample regexp of stderr: ${sample_line}"
+  expect_log "stderr.*$sample_line"
+}
+
 run_suite "Integration tests for the build event stream"