tests: Add a simple test suite that checks that every test is compiling

and passing tests correctly

Ideally it should be done in rust, but I was too lazy right now.

Should be easy to port.

2 files changed, 70 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..be0441c9
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,34 @@
+
+TEST_HEADERS := $(wildcard tests/headers/*.h) $(wildcard tests/headers/*.hpp)
+
+TEST_TARGETS := $(TEST_HEADERS:.h=.rs)
+TEST_TARGETS := $(TEST_TARGETS:.hpp=.rs)
+TEST_TARGETS := $(patsubst tests/headers/%, tests/expectations/%, $(TEST_TARGETS))
+
+BINDGEN := ./target/debug/bindgen
+
+.PHONY: $(BINDGEN)
+$(BINDGEN):
+	cargo build
+
+.PHONY: test
+test: regen-tests
+	@echo > /dev/null
+
+
+.PHONY: regen-tests
+regen-tests: $(BINDGEN) clean-tests $(TEST_TARGETS)
+	@echo > /dev/null
+
+.PHONY: clean-tests
+clean-tests:
+	$(RM) $(TEST_TARGETS)
+
+# TODO: Add options to add flags and whatnot
+tests/expectations/%.rs: tests/headers/%.h
+	@mkdir -p $(dir $@)
+	./tests/tools/run-bindgen.py $(BINDGEN) $< $@
+
+tests/expectations/%.rs: tests/headers/%.hpp
+	@mkdir -p $(dir $@)
+	./tests/tools/run-bindgen.py $(BINDGEN) $< $@
diff --git a/tests/tools/run-bindgen.py b/tests/tools/run-bindgen.py
new file mode 100755
index 00000000..e654fef3
--- /dev/null
+++ b/tests/tools/run-bindgen.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import subprocess
+import tempfile
+
+BINDGEN_FLAGS_PREFIX = "// bindgen-flags: ";
+COMMON_PRELUDE = """
+#![feature(const_fn)]
+"""
+
+if len(sys.argv) != 4:
+  print("Usage: {} [bindgen-path] [c-path] [rust-path]\n".format(sys.argv[0]))
+
+flags = [];
+with open(sys.argv[2]) as f:
+  for line in f:
+    if line.startswith(BINDGEN_FLAGS_PREFIX):
+      flags = line.strip().split(BINDGEN_FLAGS_PREFIX)[1].split(' ')
+
+base_command = [sys.argv[1], sys.argv[2], "-o", sys.argv[3]]
+
+for line in COMMON_PRELUDE.split('\n'):
+  flags.append("-raw-line")
+  flags.append(line)
+
+base_command.extend(flags);
+subprocess.check_call(base_command, cwd=os.getcwd())
+
+
+name = None
+with tempfile.NamedTemporaryFile(delete=False) as tests:
+  name = tests.name
+  subprocess.check_call(["rustc", "--test", sys.argv[3], "-o", tests.name])
+subprocess.check_call([tests.name])