Change src/test to tests in source files, fix tidy and tests

.github/workflows/ci.yml

@@ -342,7 +342,7 @@ jobs:
  os: macos-12-xl
  - name: x86_64-apple-1
  env:
- SCRIPT: "./x.py --stage 2 test --exclude src/test/ui --exclude src/test/rustdoc --exclude src/test/run-make-fulldeps"
+ SCRIPT: "./x.py --stage 2 test --exclude tests/ui --exclude tests/rustdoc --exclude tests/run-make-fulldeps"
  RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
  RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
  MACOSX_DEPLOYMENT_TARGET: 10.8
@@ -353,7 +353,7 @@ jobs:
  os: macos-12-xl
  - name: x86_64-apple-2
  env:
- SCRIPT: "./x.py --stage 2 test src/test/ui src/test/rustdoc src/test/run-make-fulldeps"
+ SCRIPT: "./x.py --stage 2 test tests/ui tests/rustdoc tests/run-make-fulldeps"
  RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
  RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
  MACOSX_DEPLOYMENT_TARGET: 10.8

.gitignore

@@ -26,7 +26,7 @@ Session.vim
 .valgrindrc
 .cargo
 # Included because it is part of the test case
-!/src/test/run-make/thumb-none-qemu/example/.cargo
+!/tests/run-make/thumb-none-qemu/example/.cargo
 
 ## Configuration
 /config.toml
@@ -74,6 +74,6 @@ package-lock.json
 package.json
 
 ## Rustdoc GUI tests
-src/test/rustdoc-gui/src/**.lock
+tests/rustdoc-gui/src/**.lock
 
 # Before adding new lines, see the comment at the top.

Cargo.toml

@@ -51,7 +51,7 @@ exclude = [
  "compiler/rustc_codegen_cranelift",
  "compiler/rustc_codegen_gcc",
  "src/bootstrap",
- "src/test/rustdoc-gui",
+ "tests/rustdoc-gui",
  # HACK(eddyb) This hardcodes the fact that our CI uses `/checkout/obj`.
  "obj",
  # The `x` binary is a thin wrapper that calls `x.py`, which initializes

compiler/rustc_ast_lowering/src/expr.rs

@@ -689,8 +689,8 @@ impl<'hir> LoweringContext<'_, 'hir> {
  // call (like the identity function), as otherwise type and lifetime
  // inference have a hard time figuring things out.
  // Without this, we would get:
- // E0720 in src/test/ui/impl-trait/in-trait/default-body-with-rpit.rs
- // E0700 in src/test/ui/self/self_lifetime-async.rs
+ // E0720 in tests/ui/impl-trait/in-trait/default-body-with-rpit.rs
+ // E0700 in tests/ui/self/self_lifetime-async.rs
 
  // `future::identity_future`:
  let identity_future =

compiler/rustc_borrowck/src/consumers.rs

@@ -25,7 +25,7 @@ pub use super::{
 /// can, for example, happen when requesting a body of a `const` function
 /// because they are evaluated during typechecking. The panic can be avoided
 /// by overriding the `mir_borrowck` query. You can find a complete example
-/// that shows how to do this at `src/test/run-make/obtain-borrowck/`.
+/// that shows how to do this at `tests/run-make/obtain-borrowck/`.
 ///
 /// * Polonius is highly unstable, so expect regular changes in its signature or other details.
 pub fn get_body_with_borrowck_facts(

compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs

@@ -1737,7 +1737,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
 
  /// We check that there's a single level of block nesting to ensure always correct
  /// suggestions. If we don't, then we only provide a free-form message to avoid
- /// misleading users in cases like `src/test/ui/nll/borrowed-temporary-error.rs`.
+ /// misleading users in cases like `tests/ui/nll/borrowed-temporary-error.rs`.
  /// We could expand the analysis to suggest hoising all of the relevant parts of
  /// the users' code to make the code compile, but that could be too much.
  struct NestedStatementVisitor {

compiler/rustc_borrowck/src/region_infer/opaque_types.rs

@@ -262,7 +262,7 @@ impl<'tcx> InferCtxtExt<'tcx> for InferCtxt<'tcx> {
  return self.tcx.ty_error();
  }
 
- // Only check this for TAIT. RPIT already supports `src/test/ui/impl-trait/nested-return-type2.rs`
+ // Only check this for TAIT. RPIT already supports `tests/ui/impl-trait/nested-return-type2.rs`
  // on stable and we'd break that.
  let OpaqueTyOrigin::TyAlias = origin else {
  return definition_ty;

compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh

@@ -10,118 +10,118 @@ pushd rust
 
 command -v rg >/dev/null 2>&1 || cargo install ripgrep
 
-rm -r src/test/ui/{extern/,unsized-locals/,lto/,linkage*} || true
-for test in $(rg --files-with-matches "lto|// needs-asm-support|// needs-unwind" src/test/{ui,incremental}); do
+rm -r tests/ui/{extern/,unsized-locals/,lto/,linkage*} || true
+for test in $(rg --files-with-matches "lto|// needs-asm-support|// needs-unwind" tests/{ui,incremental}); do
  rm $test
 done
 
-for test in $(rg -i --files-with-matches "//(\[\w+\])?~[^\|]*\s*ERR|// error-pattern:|// build-fail|// run-fail|-Cllvm-args" src/test/ui); do
+for test in $(rg -i --files-with-matches "//(\[\w+\])?~[^\|]*\s*ERR|// error-pattern:|// build-fail|// run-fail|-Cllvm-args" tests/ui); do
  rm $test
 done
 
-git checkout -- src/test/ui/issues/auxiliary/issue-3136-a.rs # contains //~ERROR, but shouldn't be removed
-git checkout -- src/test/ui/proc-macro/pretty-print-hack/
+git checkout -- tests/ui/issues/auxiliary/issue-3136-a.rs # contains //~ERROR, but shouldn't be removed
+git checkout -- tests/ui/proc-macro/pretty-print-hack/
 
 # missing features
 # ================
 
 # requires stack unwinding
-rm src/test/incremental/change_crate_dep_kind.rs
-rm src/test/incremental/issue-80691-bad-eval-cache.rs # -Cpanic=abort causes abort instead of exit(101)
+rm tests/incremental/change_crate_dep_kind.rs
+rm tests/incremental/issue-80691-bad-eval-cache.rs # -Cpanic=abort causes abort instead of exit(101)
 
 # requires compiling with -Cpanic=unwind
-rm -r src/test/ui/macros/rfc-2011-nicer-assert-messages/
-rm -r src/test/run-make/test-benches
+rm -r tests/ui/macros/rfc-2011-nicer-assert-messages/
+rm -r tests/run-make/test-benches
 
 # vendor intrinsics
-rm src/test/ui/sse2.rs # cpuid not supported, so sse2 not detected
-rm src/test/ui/intrinsics/const-eval-select-x86_64.rs # requires x86_64 vendor intrinsics
-rm src/test/ui/simd/array-type.rs # "Index argument for `simd_insert` is not a constant"
-rm src/test/ui/simd/intrinsic/generic-bitmask-pass.rs # simd_bitmask unimplemented
-rm src/test/ui/simd/intrinsic/generic-as.rs # simd_as unimplemented
-rm src/test/ui/simd/intrinsic/generic-arithmetic-saturating-pass.rs # simd_saturating_add unimplemented
-rm src/test/ui/simd/intrinsic/float-math-pass.rs # simd_fcos unimplemented
-rm src/test/ui/simd/intrinsic/generic-gather-pass.rs # simd_gather unimplemented
-rm src/test/ui/simd/intrinsic/generic-select-pass.rs # simd_select_bitmask unimplemented
-rm src/test/ui/simd/issue-85915-simd-ptrs.rs # simd_gather unimplemented
-rm src/test/ui/simd/issue-89193.rs # simd_gather unimplemented
-rm src/test/ui/simd/simd-bitmask.rs # simd_bitmask unimplemented
+rm tests/ui/sse2.rs # cpuid not supported, so sse2 not detected
+rm tests/ui/intrinsics/const-eval-select-x86_64.rs # requires x86_64 vendor intrinsics
+rm tests/ui/simd/array-type.rs # "Index argument for `simd_insert` is not a constant"
+rm tests/ui/simd/intrinsic/generic-bitmask-pass.rs # simd_bitmask unimplemented
+rm tests/ui/simd/intrinsic/generic-as.rs # simd_as unimplemented
+rm tests/ui/simd/intrinsic/generic-arithmetic-saturating-pass.rs # simd_saturating_add unimplemented
+rm tests/ui/simd/intrinsic/float-math-pass.rs # simd_fcos unimplemented
+rm tests/ui/simd/intrinsic/generic-gather-pass.rs # simd_gather unimplemented
+rm tests/ui/simd/intrinsic/generic-select-pass.rs # simd_select_bitmask unimplemented
+rm tests/ui/simd/issue-85915-simd-ptrs.rs # simd_gather unimplemented
+rm tests/ui/simd/issue-89193.rs # simd_gather unimplemented
+rm tests/ui/simd/simd-bitmask.rs # simd_bitmask unimplemented
 
 # exotic linkages
-rm src/test/ui/issues/issue-33992.rs # unsupported linkages
-rm src/test/incremental/hashes/function_interfaces.rs # same
-rm src/test/incremental/hashes/statics.rs # same
+rm tests/ui/issues/issue-33992.rs # unsupported linkages
+rm tests/incremental/hashes/function_interfaces.rs # same
+rm tests/incremental/hashes/statics.rs # same
 
 # variadic arguments
-rm src/test/ui/abi/mir/mir_codegen_calls_variadic.rs # requires float varargs
-rm src/test/ui/abi/variadic-ffi.rs # requires callee side vararg support
+rm tests/ui/abi/mir/mir_codegen_calls_variadic.rs # requires float varargs
+rm tests/ui/abi/variadic-ffi.rs # requires callee side vararg support
 
 # unsized locals
-rm -r src/test/run-pass-valgrind/unsized-locals
+rm -r tests/run-pass-valgrind/unsized-locals
 
 # misc unimplemented things
-rm src/test/ui/intrinsics/intrinsic-nearby.rs # unimplemented nearbyintf32 and nearbyintf64 intrinsics
-rm src/test/ui/target-feature/missing-plusminus.rs # error not implemented
-rm src/test/ui/fn/dyn-fn-alignment.rs # wants a 256 byte alignment
-rm -r src/test/run-make/emit-named-files # requires full --emit support
-rm src/test/ui/abi/stack-probes.rs # stack probes not yet implemented
-rm src/test/ui/simd/intrinsic/ptr-cast.rs # simd_expose_addr intrinsic unimplemented
-rm -r src/test/run-make/repr128-dwarf # debuginfo test
-rm src/test/codegen-units/item-collection/asm-sym.rs # requires support for sym in asm!()
+rm tests/ui/intrinsics/intrinsic-nearby.rs # unimplemented nearbyintf32 and nearbyintf64 intrinsics
+rm tests/ui/target-feature/missing-plusminus.rs # error not implemented
+rm tests/ui/fn/dyn-fn-alignment.rs # wants a 256 byte alignment
+rm -r tests/run-make/emit-named-files # requires full --emit support
+rm tests/ui/abi/stack-probes.rs # stack probes not yet implemented
+rm tests/ui/simd/intrinsic/ptr-cast.rs # simd_expose_addr intrinsic unimplemented
+rm -r tests/run-make/repr128-dwarf # debuginfo test
+rm tests/codegen-units/item-collection/asm-sym.rs # requires support for sym in asm!()
 
 # optimization tests
 # ==================
-rm src/test/ui/codegen/issue-28950.rs # depends on stack size optimizations
-rm src/test/ui/codegen/init-large-type.rs # same
-rm src/test/ui/issues/issue-40883.rs # same
-rm -r src/test/run-make/fmt-write-bloat/ # tests an optimization
+rm tests/ui/codegen/issue-28950.rs # depends on stack size optimizations
+rm tests/ui/codegen/init-large-type.rs # same
+rm tests/ui/issues/issue-40883.rs # same
+rm -r tests/run-make/fmt-write-bloat/ # tests an optimization
 
 # backend specific tests
 # ======================
-rm src/test/incremental/thinlto/cgu_invalidated_when_import_{added,removed}.rs # requires LLVM
-rm src/test/ui/abi/stack-protector.rs # requires stack protector support
+rm tests/incremental/thinlto/cgu_invalidated_when_import_{added,removed}.rs # requires LLVM
+rm tests/ui/abi/stack-protector.rs # requires stack protector support
 
 # giving different but possibly correct results
 # =============================================
-rm src/test/ui/mir/mir_misc_casts.rs # depends on deduplication of constants
-rm src/test/ui/mir/mir_raw_fat_ptr.rs # same
-rm src/test/ui/consts/issue-33537.rs # same
-rm src/test/ui/layout/valid_range_oob.rs # different ICE message
+rm tests/ui/mir/mir_misc_casts.rs # depends on deduplication of constants
+rm tests/ui/mir/mir_raw_fat_ptr.rs # same
+rm tests/ui/consts/issue-33537.rs # same
+rm tests/ui/layout/valid_range_oob.rs # different ICE message
 
 # doesn't work due to the way the rustc test suite is invoked.
 # should work when using ./x.py test the way it is intended
 # ============================================================
-rm -r src/test/run-make/emit-shared-files # requires the rustdoc executable in dist/bin/
-rm -r src/test/run-make/unstable-flag-required # same
-rm -r src/test/run-make/rustdoc-* # same
-rm -r src/test/run-make/issue-88756-default-output # same
-rm -r src/test/run-make/remap-path-prefix-dwarf # requires llvm-dwarfdump
-rm -r src/test/ui/consts/missing_span_in_backtrace.rs # expects sysroot source to be elsewhere
+rm -r tests/run-make/emit-shared-files # requires the rustdoc executable in dist/bin/
+rm -r tests/run-make/unstable-flag-required # same
+rm -r tests/run-make/rustdoc-* # same
+rm -r tests/run-make/issue-88756-default-output # same
+rm -r tests/run-make/remap-path-prefix-dwarf # requires llvm-dwarfdump
+rm -r tests/ui/consts/missing_span_in_backtrace.rs # expects sysroot source to be elsewhere
 
 # genuine bugs
 # ============
-rm src/test/incremental/spike-neg1.rs # errors out for some reason
-rm src/test/incremental/spike-neg2.rs # same
-rm src/test/ui/issues/issue-74564-if-expr-stack-overflow.rs # gives a stackoverflow before the backend runs
-rm src/test/ui/mir/ssa-analysis-regression-50041.rs # produces ICE
-rm src/test/ui/type-alias-impl-trait/assoc-projection-ice.rs # produces ICE
+rm tests/incremental/spike-neg1.rs # errors out for some reason
+rm tests/incremental/spike-neg2.rs # same
+rm tests/ui/issues/issue-74564-if-expr-stack-overflow.rs # gives a stackoverflow before the backend runs
+rm tests/ui/mir/ssa-analysis-regression-50041.rs # produces ICE
+rm tests/ui/type-alias-impl-trait/assoc-projection-ice.rs # produces ICE
 
-rm src/test/ui/simd/intrinsic/generic-reduction-pass.rs # simd_reduce_add_unordered doesn't accept an accumulator for integer vectors
+rm tests/ui/simd/intrinsic/generic-reduction-pass.rs # simd_reduce_add_unordered doesn't accept an accumulator for integer vectors
 
-rm src/test/ui/runtime/out-of-stack.rs # SIGSEGV instead of SIGABRT for some reason (#1301)
+rm tests/ui/runtime/out-of-stack.rs # SIGSEGV instead of SIGABRT for some reason (#1301)
 
 # bugs in the test suite
 # ======================
-rm src/test/ui/backtrace.rs # TODO warning
-rm src/test/ui/simple_global_asm.rs # TODO add needs-asm-support
-rm src/test/ui/test-attrs/test-type.rs # TODO panic message on stderr. correct stdout
+rm tests/ui/backtrace.rs # TODO warning
+rm tests/ui/simple_global_asm.rs # TODO add needs-asm-support
+rm tests/ui/test-attrs/test-type.rs # TODO panic message on stderr. correct stdout
 # not sure if this is actually a bug in the test suite, but the symbol list shows the function without leading _ for some reason
-rm -r src/test/run-make/native-link-modifier-bundle
-rm src/test/ui/process/nofile-limit.rs # TODO some AArch64 linking issue
-rm src/test/ui/dyn-star/dispatch-on-pin-mut.rs # TODO failed assertion in vtable::get_ptr_and_method_ref
+rm -r tests/run-make/native-link-modifier-bundle
+rm tests/ui/process/nofile-limit.rs # TODO some AArch64 linking issue
+rm tests/ui/dyn-star/dispatch-on-pin-mut.rs # TODO failed assertion in vtable::get_ptr_and_method_ref
 
-rm src/test/ui/stdio-is-blocking.rs # really slow with unoptimized libstd
+rm tests/ui/stdio-is-blocking.rs # really slow with unoptimized libstd
 
 echo "[TEST] rustc test suite"
-RUST_TEST_NOCAPTURE=1 COMPILETEST_FORCE_STAGE0=1 ./x.py test --stage 0 src/test/{codegen-units,run-make,run-pass-valgrind,ui,incremental}
+RUST_TEST_NOCAPTURE=1 COMPILETEST_FORCE_STAGE0=1 ./x.py test --stage 0 tests/{codegen-units,run-make,run-pass-valgrind,ui,incremental}
 popd

compiler/rustc_codegen_gcc/test.sh

@@ -253,25 +253,25 @@ rustc = "$HOME/.rustup/toolchains/$rust_toolchain-$TARGET_TRIPLE/bin/rustc"
 EOF
 
  rustc -V | cut -d' ' -f3 | tr -d '('
- git checkout $(rustc -V | cut -d' ' -f3 | tr -d '(') src/test
+ git checkout $(rustc -V | cut -d' ' -f3 | tr -d '(') tests
 
- for test in $(rg -i --files-with-matches "//(\[\w+\])?~|// error-pattern:|// build-fail|// run-fail|-Cllvm-args" src/test/ui); do
+ for test in $(rg -i --files-with-matches "//(\[\w+\])?~|// error-pattern:|// build-fail|// run-fail|-Cllvm-args" tests/ui); do
  rm $test
  done
 
- git checkout -- src/test/ui/issues/auxiliary/issue-3136-a.rs # contains //~ERROR, but shouldn't be removed
+ git checkout -- tests/ui/issues/auxiliary/issue-3136-a.rs # contains //~ERROR, but shouldn't be removed
 
- rm -r src/test/ui/{abi*,extern/,panic-runtime/,panics/,unsized-locals/,proc-macro/,threads-sendsync/,thinlto/,borrowck/,test*,*lto*.rs} || true
- for test in $(rg --files-with-matches "catch_unwind|should_panic|thread|lto" src/test/ui); do
+ rm -r tests/ui/{abi*,extern/,panic-runtime/,panics/,unsized-locals/,proc-macro/,threads-sendsync/,thinlto/,borrowck/,test*,*lto*.rs} || true
+ for test in $(rg --files-with-matches "catch_unwind|should_panic|thread|lto" tests/ui); do
  rm $test
  done
- git checkout src/test/ui/type-alias-impl-trait/auxiliary/cross_crate_ice.rs
- git checkout src/test/ui/type-alias-impl-trait/auxiliary/cross_crate_ice2.rs
+ git checkout tests/ui/type-alias-impl-trait/auxiliary/cross_crate_ice.rs
+ git checkout tests/ui/type-alias-impl-trait/auxiliary/cross_crate_ice2.rs
 
  RUSTC_ARGS="-Zpanic-abort-tests -Csymbol-mangling-version=v0 -Zcodegen-backend="$(pwd)"/../target/"$CHANNEL"/librustc_codegen_gcc."$dylib_ext" --sysroot "$(pwd)"/../build_sysroot/sysroot -Cpanic=abort"
 
  echo "[TEST] rustc test suite"
- COMPILETEST_FORCE_STAGE0=1 ./x.py test --run always --stage 0 src/test/ui/ --rustc-args "$RUSTC_ARGS"
+ COMPILETEST_FORCE_STAGE0=1 ./x.py test --run always --stage 0 tests/ui/ --rustc-args "$RUSTC_ARGS"
 }
 
 function clean_ui_tests() {

compiler/rustc_const_eval/src/transform/check_consts/post_drop_elaboration.rs

@@ -95,7 +95,7 @@ impl<'tcx> Visitor<'tcx> for CheckLiveDrops<'_, 'tcx> {
  }
 
  // Drop elaboration is not precise enough to accept code like
- // `src/test/ui/consts/control-flow/drop-pass.rs`; e.g., when an `Option<Vec<T>>` is
+ // `tests/ui/consts/control-flow/drop-pass.rs`; e.g., when an `Option<Vec<T>>` is
  // initialized with `None` and never changed, it still emits drop glue.
  // Hence we additionally check the qualifs here to allow more code to pass.
  if self.qualifs.needs_non_const_drop(self.ccx, dropped_place.local, location) {

compiler/rustc_hir_analysis/src/astconv/errors.rs

@@ -267,7 +267,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
  // segments, even though `trait_ref.path.segments` is of length `1`. Work
  // around that bug here, even though it should be fixed elsewhere.
  // This would otherwise cause an invalid suggestion. For an example, look at
- // `src/test/ui/issues/issue-28344.rs` where instead of the following:
+ // `tests/ui/issues/issue-28344.rs` where instead of the following:
  //
  // error[E0191]: the value of the associated type `Output`
  // (from trait `std::ops::BitXor`) must be specified

compiler/rustc_hir_typeck/src/coercion.rs

@@ -13,7 +13,7 @@
 //! useful for freezing mut things (that is, when the expected type is &T
 //! but you have &mut T) and also for avoiding the linearity
 //! of mut things (when the expected is &mut T and you have &mut T). See
-//! the various `src/test/ui/coerce/*.rs` tests for
+//! the various `tests/ui/coerce/*.rs` tests for
 //! examples of where this is useful.
 //!
 //! ## Subtle note

compiler/rustc_hir_typeck/src/demand.rs

@@ -1855,7 +1855,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
  let mut expectation = Some(expected_ty);
  while let hir::ExprKind::MethodCall(_, rcvr, ..) = expr.kind {
  // Getting to the root receiver and asserting it is a fn call let's us ignore cases in
- // `src/test/ui/methods/issues/issue-90315.stderr`.
+ // `tests/ui/methods/issues/issue-90315.stderr`.
  expr = rcvr;
  // If we have more than one layer of calls, then the expected ty
  // cannot guide the method probe.

compiler/rustc_hir_typeck/src/fallback.rs

@@ -308,7 +308,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> {
 
  if relationship.self_in_trait && relationship.output {
  // This case falls back to () to ensure that the code pattern in
- // src/test/ui/never_type/fallback-closure-ret.rs continues to
+ // tests/ui/never_type/fallback-closure-ret.rs continues to
  // compile when never_type_fallback is enabled.
  //
  // This rule is not readily explainable from first principles,