61 lines
2.3 KiB
Rust
61 lines
2.3 KiB
Rust
// Copyright 2019 The Fuchsia Authors
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//
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// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
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// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
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// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
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// This file may not be copied, modified, or distributed except according to
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// those terms.
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#![allow(clippy::uninlined_format_args)]
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use std::env;
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use testutil::set_rustflags_w_warnings;
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fn test(subdir: &str) {
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let version = testutil::ToolchainVersion::extract_from_pwd().unwrap();
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// See the doc comment on this method for an explanation of what this does
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// and why we store source files in different directories.
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let source_files_dirname = version.get_ui_source_files_dirname_and_maybe_print_warning();
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// Set `-Wwarnings` in the `RUSTFLAGS` environment variable to ensure that
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// `.stderr` files reflect what the typical user would encounter.
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set_rustflags_w_warnings();
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let t = trybuild::TestCases::new();
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t.compile_fail(format!("tests/{}/{}/*.rs", source_files_dirname, subdir));
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}
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#[test]
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#[cfg_attr(miri, ignore)]
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fn ui() {
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test("");
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// This tests the behavior when `--cfg zerocopy_derive_union_into_bytes` is
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// not present, so remove it. If this logic is wrong, that's fine - it will
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// exhibit as a test failure that we can debug at that point.
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let rustflags = env::var("RUSTFLAGS").unwrap();
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let new_rustflags = rustflags.replace("--cfg zerocopy_derive_union_into_bytes", "");
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// SAFETY: None of our code is concurrently accessinv env vars. It's
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// possible that the test framework has spawned other threads that are
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// concurrently accessing env vars, but we can't do anything about that.
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#[allow(unused_unsafe)] // `set_var` is safe on our MSRV.
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unsafe {
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env::set_var("RUSTFLAGS", new_rustflags)
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};
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test("union_into_bytes_cfg");
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// Reset RUSTFLAGS in case we later add other tests which rely on its value.
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// This isn't strictly necessary, but it's easier to add this now when we're
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// thinking about the semantics of these env vars than to debug later when
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// we've forgotten about it.
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//
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// SAFETY: See previous safety comment.
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#[allow(unused_unsafe)] // `set_var` is safe on our MSRV.
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unsafe {
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env::set_var("RUSTFLAGS", rustflags)
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};
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}
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