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rules_integration_test.py
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rules_integration_test.py
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# Copyright 2021 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
from __future__ import annotations
from textwrap import dedent
import pytest
from pants.backend.codegen.thrift.rules import rules as thrift_rules
from pants.backend.codegen.thrift.scrooge.android.rules import GenerateAndroidJavaFromThriftRequest
from pants.backend.codegen.thrift.scrooge.android.rules import rules as scrooge_android_java_rules
from pants.backend.codegen.thrift.scrooge.rules import rules as scrooge_rules
from pants.backend.codegen.thrift.target_types import (
ThriftSourceField,
ThriftSourcesGeneratorTarget,
)
from pants.backend.scala import target_types
from pants.backend.scala.compile.scalac import rules as scalac_rules
from pants.backend.scala.target_types import ScalaSourcesGeneratorTarget, ScalaSourceTarget
from pants.build_graph.address import Address
from pants.core.util_rules import config_files, source_files, stripped_source_files
from pants.core.util_rules.external_tool import rules as external_tool_rules
from pants.engine.rules import QueryRule
from pants.engine.target import GeneratedSources, HydratedSources, HydrateSourcesRequest
from pants.jvm import classpath
from pants.jvm.jdk_rules import rules as jdk_rules
from pants.jvm.resolve.coursier_fetch import rules as coursier_fetch_rules
from pants.jvm.resolve.coursier_setup import rules as coursier_setup_rules
from pants.jvm.util_rules import rules as util_rules
from pants.testutil.rule_runner import PYTHON_BOOTSTRAP_ENV, RuleRunner
@pytest.fixture
def rule_runner() -> RuleRunner:
rule_runner = RuleRunner(
rules=[
*thrift_rules(),
*scrooge_rules(),
*scrooge_android_java_rules(),
*config_files.rules(),
*classpath.rules(),
*coursier_fetch_rules(),
*coursier_setup_rules(),
*external_tool_rules(),
*source_files.rules(),
*scalac_rules(),
*util_rules(),
*jdk_rules(),
*target_types.rules(),
*stripped_source_files.rules(),
QueryRule(HydratedSources, [HydrateSourcesRequest]),
QueryRule(GeneratedSources, [GenerateAndroidJavaFromThriftRequest]),
],
target_types=[
ScalaSourceTarget,
ScalaSourcesGeneratorTarget,
ThriftSourcesGeneratorTarget,
],
)
rule_runner.set_options(
[],
env_inherit=PYTHON_BOOTSTRAP_ENV,
)
return rule_runner
def assert_files_generated(
rule_runner: RuleRunner,
address: Address,
*,
expected_files: list[str],
source_roots: list[str],
extra_args: list[str] | None = None,
) -> None:
args = [f"--source-root-patterns={repr(source_roots)}", *(extra_args or ())]
rule_runner.set_options(args, env_inherit={"PATH", "PYENV_ROOT", "HOME"})
tgt = rule_runner.get_target(address)
thrift_sources = rule_runner.request(
HydratedSources, [HydrateSourcesRequest(tgt[ThriftSourceField])]
)
generated_sources = rule_runner.request(
GeneratedSources,
[GenerateAndroidJavaFromThriftRequest(thrift_sources.snapshot, tgt)],
)
assert set(generated_sources.snapshot.files) == set(expected_files)
def test_generates_java(rule_runner: RuleRunner) -> None:
# This tests a few things:
# * We generate the correct file names.
# * Thrift files can import other thrift files, and those can import others
# (transitive dependencies). We'll only generate the requested target, though.
# * We can handle multiple source roots, which need to be preserved in the final output.
rule_runner.write_files(
{
"src/thrift/dir1/f.thrift": dedent(
"""\
#@namespace android org.pantsbuild.example
struct Person {
1: string name
2: i32 id
3: string email
}
"""
),
"src/thrift/dir1/f2.thrift": dedent(
"""\
#@namespace android org.pantsbuild.example
include "dir1/f.thrift"
struct ManagedPerson {
1: f.Person employee
2: f.Person manager
}
"""
),
"src/thrift/dir1/BUILD": "thrift_sources()",
"src/thrift/dir2/g.thrift": dedent(
"""\
#@namespace android org.pantsbuild.example
include "dir1/f2.thrift"
struct ManagedPersonWrapper {
1: f2.ManagedPerson managed_person
}
"""
),
"src/thrift/dir2/BUILD": "thrift_sources(dependencies=['src/thrift/dir1'])",
# Test another source root.
"tests/thrift/test_thrifts/f.thrift": dedent(
"""\
#@namespace android org.pantsbuild.example
include "dir2/g.thrift"
struct Executive {
1: g.ManagedPersonWrapper managed_person_wrapper
}
"""
),
"tests/thrift/test_thrifts/BUILD": "thrift_sources(dependencies=['src/thrift/dir2'])",
}
)
def assert_gen(addr: Address, expected: list[str]) -> None:
assert_files_generated(
rule_runner,
addr,
source_roots=["src/python", "/src/thrift", "/tests/thrift"],
expected_files=expected,
)
assert_gen(
Address("src/thrift/dir1", relative_file_path="f.thrift"),
[
"src/thrift/org/pantsbuild/example/Person.java",
],
)
assert_gen(
Address("src/thrift/dir1", relative_file_path="f2.thrift"),
[
"src/thrift/org/pantsbuild/example/ManagedPerson.java",
],
)
assert_gen(
Address("src/thrift/dir2", relative_file_path="g.thrift"),
[
"src/thrift/org/pantsbuild/example/ManagedPersonWrapper.java",
],
)
assert_gen(
Address("tests/thrift/test_thrifts", relative_file_path="f.thrift"),
[
"tests/thrift/org/pantsbuild/example/Executive.java",
],
)