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"""
Generates a side-car JUnit suite test runner class for each
input src.
"""
load("@rules_java//java:defs.bzl", "java_library", "java_test")
_template = """import org.junit.runners.Suite;
import org.junit.runner.RunWith;
@RunWith(Suite.class)
@Suite.SuiteClasses({%s})
public class %s {}
"""
def _as_classname(fname, pkg):
path_name = [x.path for x in fname.files.to_list()][0]
file_name = path_name.split("/")[-1]
return ".".join([pkg, file_name.split(".")[0]]) + ".class"
def _gen_suite_impl(ctx):
classes = ",".join(
[_as_classname(x, ctx.attr.package_name) for x in ctx.attr.srcs],
)
ctx.actions.write(output = ctx.outputs.out, content = _template % (
classes,
ctx.attr.outname,
))
_gen_suite = rule(
attrs = {
"srcs": attr.label_list(allow_files = True),
"package_name": attr.string(),
"outname": attr.string(),
},
outputs = {"out": "%{name}.java"},
implementation = _gen_suite_impl,
)
def junit_tests(name, srcs, data = [], deps = [], package_name = "com.google.protobuf", test_prefix = None, **kwargs):
testlib_name = "%s_lib" % name
java_library(
name = testlib_name,
srcs = srcs,
deps = deps,
resources = data,
data = data,
testonly = True,
)
test_names = []
prefix = name.replace("-", "_") + "TestSuite"
for src in srcs:
test_name = src.rsplit("/", 1)[1].split(".")[0]
if not test_name.endswith("Test") or test_name.startswith("Abstract"):
continue
if test_prefix:
test_name = "%s%s" % (test_prefix, test_name)
test_names = test_names + [test_name]
suite_name = prefix + "_" + test_name
_gen_suite(
name = suite_name,
srcs = [src],
package_name = package_name,
outname = suite_name,
)
java_test(
name = test_name,
test_class = suite_name,
srcs = [src] + [":" + suite_name],
deps = deps + [":%s" % testlib_name],
**kwargs
)
native.test_suite(
name = name,
tests = test_names,
)
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