Add test for b failing

Because we've introduced bugs before where b doesn't exit with the
correct status code when bazel fails.

Bug: 289436072
Test: ./build/make/tests/b_tests.sh
Change-Id: Ia9cb990c627f7b68636e6277a7c637d62312826d

parent f1640970

tests/b_tests.sh

+4 −0

Original line number	Diff line number	Diff line
		@@ -23,6 +23,10 @@ lunch aosp_arm64

		test_target=//build/bazel/scripts/difftool:difftool

		if b build //build/bazel:nonexistent_module &>/dev/null ; then
		echo "b did not fail when building a nonexistent module" >&2
		exit 1
		fi
		b build "$test_target"
		b build -- "$test_target"
		b build "$test_target" --run-soong-tests