90 lines
2.8 KiB
Python
90 lines
2.8 KiB
Python
"""Rule for running test suites with Bun."""
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load("//internal:js_library.bzl", "BunSourcesInfo")
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def _shell_quote(value):
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return "'" + value.replace("'", "'\"'\"'") + "'"
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def _bun_test_impl(ctx):
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toolchain = ctx.toolchains["//bun:toolchain_type"]
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bun_bin = toolchain.bun.bun_bin
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src_args = " ".join([_shell_quote(src.short_path) for src in ctx.files.srcs])
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launcher = ctx.actions.declare_file(ctx.label.name)
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ctx.actions.write(
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output = launcher,
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is_executable = True,
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content = """#!/usr/bin/env bash
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set -euo pipefail
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runfiles_dir="${{RUNFILES_DIR:-$0.runfiles}}"
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bun_bin="${{runfiles_dir}}/_main/{bun_short_path}"
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cd "${{runfiles_dir}}/_main"
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if [[ -n "${{TESTBRIDGE_TEST_ONLY:-}}" && -n "${{COVERAGE_DIR:-}}" ]]; then
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exec "${{bun_bin}}" --bun test {src_args} --test-name-pattern "${{TESTBRIDGE_TEST_ONLY}}" --coverage "$@"
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fi
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if [[ -n "${{TESTBRIDGE_TEST_ONLY:-}}" ]]; then
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exec "${{bun_bin}}" --bun test {src_args} --test-name-pattern "${{TESTBRIDGE_TEST_ONLY}}" "$@"
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fi
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if [[ -n "${{COVERAGE_DIR:-}}" ]]; then
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exec "${{bun_bin}}" --bun test {src_args} --coverage "$@"
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fi
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exec "${{bun_bin}}" --bun test {src_args} "$@"
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""".format(
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bun_short_path = bun_bin.short_path,
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src_args = src_args,
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),
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)
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transitive_files = []
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if ctx.attr.node_modules:
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transitive_files.append(ctx.attr.node_modules[DefaultInfo].files)
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for dep in ctx.attr.deps:
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if BunSourcesInfo in dep:
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transitive_files.append(dep[BunSourcesInfo].transitive_sources)
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else:
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transitive_files.append(dep[DefaultInfo].files)
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runfiles = ctx.runfiles(
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files = [bun_bin] + ctx.files.srcs + ctx.files.data,
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transitive_files = depset(transitive = transitive_files),
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)
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return [
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DefaultInfo(
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executable = launcher,
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runfiles = runfiles,
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),
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]
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bun_test = rule(
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implementation = _bun_test_impl,
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doc = """Runs Bun tests as a Bazel test target.
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Supports Bazel test filtering (`--test_filter`) and coverage integration.
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""",
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attrs = {
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"srcs": attr.label_list(
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mandatory = True,
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allow_files = [".js", ".ts", ".jsx", ".tsx", ".mjs", ".cjs"],
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doc = "Test source files passed to `bun test`.",
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),
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"node_modules": attr.label(
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doc = "Optional label providing package files from a `node_modules` tree, typically produced by `bun_install`, in runfiles.",
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),
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"deps": attr.label_list(
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doc = "Library dependencies required by test sources.",
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),
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"data": attr.label_list(
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allow_files = True,
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doc = "Additional runtime files needed by tests.",
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),
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},
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test = True,
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toolchains = ["//bun:toolchain_type"],
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)
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