Add a walking skeleton for rs_bindings_from_cc generator
In this CL we use:
* `StandaloneClangTool` for the actual executable (since that is what people (= dmitrig@) recommended)
* clang::tooling::runToolOnCodeWithArgs for unit testing the AstVisitor
* GBashUnit for integration test
PiperOrigin-RevId: 387391923
diff --git a/rs_bindings_from_cc/test/rs_bindings_from_cc_test.sh b/rs_bindings_from_cc/test/rs_bindings_from_cc_test.sh
new file mode 100755
index 0000000..fd1267a
--- /dev/null
+++ b/rs_bindings_from_cc/test/rs_bindings_from_cc_test.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# Part of the Crubit project, under the Apache License v2.0 with LLVM
+# Exceptions. See /LICENSE for license information.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+
+source gbash.sh || exit
+source module gbash_unit.sh
+
+# Find input files
+readonly RS_BINDINGS_FROM_CC="${RUNFILES}/rs_bindings_from_cc/rs_bindings_from_cc"
+
+function test::rs_bindings_from_cc_cmd_line_api() {
+ EXPECT_FAIL "${RS_BINDINGS_FROM_CC}" "generator should return non-zero with no arguments"
+ EXPECT_SUCCEED \
+ "${RS_BINDINGS_FROM_CC} 2>&1 | grep 'please specify --rs_out' > /dev/null" \
+ "generator should show help message for --rs_out"
+ EXPECT_SUCCEED \
+ "${RS_BINDINGS_FROM_CC} --rs_out=/foo 2>&1 | \
+ grep 'please specify --cc_out' > /dev/null" \
+ "generator should show help message for --cc_out"
+
+ local rs_out="${TEST_TMPDIR}/rs_api.rs"
+ local cc_out="${TEST_TMPDIR}/rs_api_impl.cc"
+ local hdr="${TEST_TMPDIR}/hello_world.h"
+ echo "int foo();" > "${hdr}"
+ EXPECT_SUCCEED \
+ "\"${RS_BINDINGS_FROM_CC}\" \
+ --use_tool_args_for_compile \
+ --rs_out=\"${rs_out}\" \
+ --cc_out=\"${cc_out}\" \
+ \"${hdr}\""
+
+ EXPECT_FILE_NOT_EMPTY "${rs_out}"
+ EXPECT_FILE_NOT_EMPTY "${cc_out}"
+}
+
+gbash::unit::main "$@"
\ No newline at end of file
