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1 | // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
11 | // Code that generates a test runner to run all the tests in a crate | |
12 | ||
13 | #![allow(dead_code)] | |
14 | #![allow(unused_imports)] | |
3157f602 | 15 | |
1a4d82fc JJ |
16 | use self::HasTestSignature::*; |
17 | ||
e9174d1e | 18 | use std::iter; |
1a4d82fc JJ |
19 | use std::slice; |
20 | use std::mem; | |
21 | use std::vec; | |
c30ab7b3 | 22 | use attr::{self, HasAttrs}; |
b7449926 | 23 | use syntax_pos::{self, DUMMY_SP, NO_EXPANSION, Span, SourceFile, BytePos}; |
3157f602 | 24 | |
b7449926 | 25 | use source_map::{self, SourceMap, ExpnInfo, MacroAttribute, dummy_spanned, respan}; |
9cc50fc6 | 26 | use errors; |
1a4d82fc | 27 | use config; |
e9174d1e | 28 | use entry::{self, EntryPointType}; |
9e0c209e | 29 | use ext::base::{ExtCtxt, Resolver}; |
1a4d82fc JJ |
30 | use ext::build::AstBuilder; |
31 | use ext::expand::ExpansionConfig; | |
94b46f34 | 32 | use ext::hygiene::{self, Mark, SyntaxContext}; |
92a42be0 | 33 | use fold::Folder; |
0531ce1d | 34 | use feature_gate::Features; |
92a42be0 | 35 | use util::move_map::MoveMap; |
1a4d82fc | 36 | use fold; |
1a4d82fc JJ |
37 | use parse::{token, ParseSess}; |
38 | use print::pprust; | |
476ff2be | 39 | use ast::{self, Ident}; |
1a4d82fc | 40 | use ptr::P; |
b7449926 | 41 | use OneVector; |
476ff2be | 42 | use symbol::{self, Symbol, keywords}; |
b7449926 XL |
43 | use ThinVec; |
44 | use rustc_data_structures::small_vec::ExpectOne; | |
1a4d82fc JJ |
45 | |
46 | struct Test { | |
47 | span: Span, | |
b7449926 | 48 | path: Vec<Ident>, |
1a4d82fc JJ |
49 | } |
50 | ||
51 | struct TestCtxt<'a> { | |
9cc50fc6 | 52 | span_diagnostic: &'a errors::Handler, |
476ff2be | 53 | path: Vec<Ident>, |
1a4d82fc | 54 | ext_cx: ExtCtxt<'a>, |
b7449926 | 55 | test_cases: Vec<Test>, |
476ff2be | 56 | reexport_test_harness_main: Option<Symbol>, |
3b2f2976 | 57 | is_libtest: bool, |
cc61c64b | 58 | ctxt: SyntaxContext, |
0531ce1d | 59 | features: &'a Features, |
b7449926 | 60 | test_runner: Option<ast::Path>, |
1a4d82fc JJ |
61 | |
62 | // top-level re-export submodule, filled out after folding is finished | |
476ff2be | 63 | toplevel_reexport: Option<Ident>, |
1a4d82fc JJ |
64 | } |
65 | ||
66 | // Traverse the crate, collecting all the test functions, eliding any | |
67 | // existing main functions, and synthesizing a main test harness | |
68 | pub fn modify_for_testing(sess: &ParseSess, | |
8faf50e0 | 69 | resolver: &mut dyn Resolver, |
3157f602 | 70 | should_test: bool, |
1a4d82fc | 71 | krate: ast::Crate, |
0531ce1d XL |
72 | span_diagnostic: &errors::Handler, |
73 | features: &Features) -> ast::Crate { | |
1a4d82fc | 74 | // Check for #[reexport_test_harness_main = "some_name"] which |
0531ce1d | 75 | // creates a `use __test::main as some_name;`. This needs to be |
1a4d82fc JJ |
76 | // unconditional, so that the attribute is still marked as used in |
77 | // non-test builds. | |
78 | let reexport_test_harness_main = | |
c34b1796 | 79 | attr::first_attr_value_str_by_name(&krate.attrs, |
1a4d82fc JJ |
80 | "reexport_test_harness_main"); |
81 | ||
b7449926 XL |
82 | // Do this here so that the test_runner crate attribute gets marked as used |
83 | // even in non-test builds | |
84 | let test_runner = get_test_runner(span_diagnostic, &krate); | |
85 | ||
1a4d82fc | 86 | if should_test { |
0531ce1d | 87 | generate_test_harness(sess, resolver, reexport_test_harness_main, |
b7449926 | 88 | krate, span_diagnostic, features, test_runner) |
1a4d82fc | 89 | } else { |
3157f602 | 90 | krate |
1a4d82fc JJ |
91 | } |
92 | } | |
93 | ||
94 | struct TestHarnessGenerator<'a> { | |
95 | cx: TestCtxt<'a>, | |
476ff2be | 96 | tests: Vec<Ident>, |
1a4d82fc JJ |
97 | |
98 | // submodule name, gensym'd identifier for re-exports | |
476ff2be | 99 | tested_submods: Vec<(Ident, Ident)>, |
1a4d82fc JJ |
100 | } |
101 | ||
102 | impl<'a> fold::Folder for TestHarnessGenerator<'a> { | |
103 | fn fold_crate(&mut self, c: ast::Crate) -> ast::Crate { | |
104 | let mut folded = fold::noop_fold_crate(c, self); | |
105 | ||
b7449926 XL |
106 | // Create a main function to run our tests |
107 | let test_main = { | |
108 | let unresolved = mk_main(&mut self.cx); | |
109 | self.cx.ext_cx.monotonic_expander().fold_item(unresolved).pop().unwrap() | |
110 | }; | |
111 | ||
112 | folded.module.items.push(test_main); | |
1a4d82fc JJ |
113 | folded |
114 | } | |
115 | ||
b7449926 | 116 | fn fold_item(&mut self, i: P<ast::Item>) -> OneVector<P<ast::Item>> { |
1a4d82fc | 117 | let ident = i.ident; |
a7813a04 | 118 | if ident.name != keywords::Invalid.name() { |
1a4d82fc JJ |
119 | self.cx.path.push(ident); |
120 | } | |
54a0048b | 121 | debug!("current path: {}", path_name_i(&self.cx.path)); |
1a4d82fc | 122 | |
b7449926 XL |
123 | let mut item = i.into_inner(); |
124 | if is_test_case(&item) { | |
125 | debug!("this is a test item"); | |
8faf50e0 | 126 | |
8faf50e0 | 127 | let test = Test { |
b7449926 | 128 | span: item.span, |
8faf50e0 | 129 | path: self.cx.path.clone(), |
8faf50e0 | 130 | }; |
b7449926 XL |
131 | self.cx.test_cases.push(test); |
132 | self.tests.push(item.ident); | |
c30ab7b3 | 133 | } |
1a4d82fc JJ |
134 | |
135 | // We don't want to recurse into anything other than mods, since | |
136 | // mods or tests inside of functions will break things | |
c30ab7b3 SL |
137 | if let ast::ItemKind::Mod(module) = item.node { |
138 | let tests = mem::replace(&mut self.tests, Vec::new()); | |
139 | let tested_submods = mem::replace(&mut self.tested_submods, Vec::new()); | |
140 | let mut mod_folded = fold::noop_fold_mod(module, self); | |
141 | let tests = mem::replace(&mut self.tests, tests); | |
142 | let tested_submods = mem::replace(&mut self.tested_submods, tested_submods); | |
143 | ||
144 | if !tests.is_empty() || !tested_submods.is_empty() { | |
145 | let (it, sym) = mk_reexport_mod(&mut self.cx, item.id, tests, tested_submods); | |
146 | mod_folded.items.push(it); | |
147 | ||
148 | if !self.cx.path.is_empty() { | |
149 | self.tested_submods.push((self.cx.path[self.cx.path.len()-1], sym)); | |
150 | } else { | |
151 | debug!("pushing nothing, sym: {:?}", sym); | |
152 | self.cx.toplevel_reexport = Some(sym); | |
153 | } | |
154 | } | |
155 | item.node = ast::ItemKind::Mod(mod_folded); | |
156 | } | |
a7813a04 | 157 | if ident.name != keywords::Invalid.name() { |
1a4d82fc JJ |
158 | self.cx.path.pop(); |
159 | } | |
b7449926 | 160 | smallvec![P(item)] |
1a4d82fc | 161 | } |
5bcae85e SL |
162 | |
163 | fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac { mac } | |
1a4d82fc JJ |
164 | } |
165 | ||
b7449926 XL |
166 | /// A folder used to remove any entry points (like fn main) because the harness |
167 | /// generator will provide its own | |
e9174d1e SL |
168 | struct EntryPointCleaner { |
169 | // Current depth in the ast | |
170 | depth: usize, | |
171 | } | |
172 | ||
173 | impl fold::Folder for EntryPointCleaner { | |
b7449926 | 174 | fn fold_item(&mut self, i: P<ast::Item>) -> OneVector<P<ast::Item>> { |
e9174d1e SL |
175 | self.depth += 1; |
176 | let folded = fold::noop_fold_item(i, self).expect_one("noop did something"); | |
177 | self.depth -= 1; | |
178 | ||
179 | // Remove any #[main] or #[start] from the AST so it doesn't | |
180 | // clash with the one we're going to add, but mark it as | |
181 | // #[allow(dead_code)] to avoid printing warnings. | |
7453a54e | 182 | let folded = match entry::entry_point_type(&folded, self.depth) { |
e9174d1e SL |
183 | EntryPointType::MainNamed | |
184 | EntryPointType::MainAttr | | |
185 | EntryPointType::Start => | |
3b2f2976 | 186 | folded.map(|ast::Item {id, ident, attrs, node, vis, span, tokens}| { |
83c7162d XL |
187 | let allow_ident = Ident::from_str("allow"); |
188 | let dc_nested = attr::mk_nested_word_item(Ident::from_str("dead_code")); | |
189 | let allow_dead_code_item = attr::mk_list_item(DUMMY_SP, allow_ident, | |
190 | vec![dc_nested]); | |
8bb4bdeb XL |
191 | let allow_dead_code = attr::mk_attr_outer(DUMMY_SP, |
192 | attr::mk_attr_id(), | |
e9174d1e SL |
193 | allow_dead_code_item); |
194 | ||
195 | ast::Item { | |
3b2f2976 XL |
196 | id, |
197 | ident, | |
e9174d1e SL |
198 | attrs: attrs.into_iter() |
199 | .filter(|attr| { | |
200 | !attr.check_name("main") && !attr.check_name("start") | |
201 | }) | |
202 | .chain(iter::once(allow_dead_code)) | |
203 | .collect(), | |
3b2f2976 XL |
204 | node, |
205 | vis, | |
206 | span, | |
207 | tokens, | |
e9174d1e SL |
208 | } |
209 | }), | |
210 | EntryPointType::None | | |
211 | EntryPointType::OtherMain => folded, | |
212 | }; | |
213 | ||
b7449926 | 214 | smallvec![folded] |
e9174d1e | 215 | } |
5bcae85e SL |
216 | |
217 | fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac { mac } | |
e9174d1e SL |
218 | } |
219 | ||
b7449926 XL |
220 | /// Creates an item (specifically a module) that "pub use"s the tests passed in. |
221 | /// Each tested submodule will contain a similar reexport module that we will export | |
222 | /// under the name of the original module. That is, `submod::__test_reexports` is | |
223 | /// reexported like so `pub use submod::__test_reexports as submod`. | |
476ff2be SL |
224 | fn mk_reexport_mod(cx: &mut TestCtxt, |
225 | parent: ast::NodeId, | |
226 | tests: Vec<Ident>, | |
227 | tested_submods: Vec<(Ident, Ident)>) | |
228 | -> (P<ast::Item>, Ident) { | |
229 | let super_ = Ident::from_str("super"); | |
1a4d82fc | 230 | |
85aaf69f | 231 | let items = tests.into_iter().map(|r| { |
0531ce1d | 232 | cx.ext_cx.item_use_simple(DUMMY_SP, dummy_spanned(ast::VisibilityKind::Public), |
1a4d82fc | 233 | cx.ext_cx.path(DUMMY_SP, vec![super_, r])) |
85aaf69f | 234 | }).chain(tested_submods.into_iter().map(|(r, sym)| { |
1a4d82fc | 235 | let path = cx.ext_cx.path(DUMMY_SP, vec![super_, r, sym]); |
0531ce1d XL |
236 | cx.ext_cx.item_use_simple_(DUMMY_SP, dummy_spanned(ast::VisibilityKind::Public), |
237 | Some(r), path) | |
9e0c209e | 238 | })).collect(); |
1a4d82fc JJ |
239 | |
240 | let reexport_mod = ast::Mod { | |
241 | inner: DUMMY_SP, | |
3b2f2976 | 242 | items, |
1a4d82fc JJ |
243 | }; |
244 | ||
476ff2be | 245 | let sym = Ident::with_empty_ctxt(Symbol::gensym("__test_reexports")); |
c30ab7b3 SL |
246 | let parent = if parent == ast::DUMMY_NODE_ID { ast::CRATE_NODE_ID } else { parent }; |
247 | cx.ext_cx.current_expansion.mark = cx.ext_cx.resolver.get_module_scope(parent); | |
9e0c209e | 248 | let it = cx.ext_cx.monotonic_expander().fold_item(P(ast::Item { |
7cac9316 | 249 | ident: sym, |
1a4d82fc JJ |
250 | attrs: Vec::new(), |
251 | id: ast::DUMMY_NODE_ID, | |
7453a54e | 252 | node: ast::ItemKind::Mod(reexport_mod), |
0531ce1d | 253 | vis: dummy_spanned(ast::VisibilityKind::Public), |
1a4d82fc | 254 | span: DUMMY_SP, |
3b2f2976 | 255 | tokens: None, |
9e0c209e | 256 | })).pop().unwrap(); |
1a4d82fc JJ |
257 | |
258 | (it, sym) | |
259 | } | |
260 | ||
b7449926 | 261 | /// Crawl over the crate, inserting test reexports and the test main function |
1a4d82fc | 262 | fn generate_test_harness(sess: &ParseSess, |
8faf50e0 | 263 | resolver: &mut dyn Resolver, |
476ff2be | 264 | reexport_test_harness_main: Option<Symbol>, |
1a4d82fc | 265 | krate: ast::Crate, |
0531ce1d | 266 | sd: &errors::Handler, |
b7449926 XL |
267 | features: &Features, |
268 | test_runner: Option<ast::Path>) -> ast::Crate { | |
e9174d1e SL |
269 | // Remove the entry points |
270 | let mut cleaner = EntryPointCleaner { depth: 0 }; | |
271 | let krate = cleaner.fold_crate(krate); | |
272 | ||
7cac9316 | 273 | let mark = Mark::fresh(Mark::root()); |
3b2f2976 | 274 | |
0531ce1d XL |
275 | let mut econfig = ExpansionConfig::default("test".to_string()); |
276 | econfig.features = Some(features); | |
277 | ||
ff7c6d11 | 278 | let cx = TestCtxt { |
1a4d82fc | 279 | span_diagnostic: sd, |
0531ce1d | 280 | ext_cx: ExtCtxt::new(sess, econfig, resolver), |
1a4d82fc | 281 | path: Vec::new(), |
b7449926 | 282 | test_cases: Vec::new(), |
3b2f2976 XL |
283 | reexport_test_harness_main, |
284 | // NB: doesn't consider the value of `--crate-name` passed on the command line. | |
285 | is_libtest: attr::find_crate_name(&krate.attrs).map(|s| s == "test").unwrap_or(false), | |
1a4d82fc | 286 | toplevel_reexport: None, |
cc61c64b | 287 | ctxt: SyntaxContext::empty().apply_mark(mark), |
0531ce1d | 288 | features, |
b7449926 | 289 | test_runner |
1a4d82fc JJ |
290 | }; |
291 | ||
cc61c64b | 292 | mark.set_expn_info(ExpnInfo { |
1a4d82fc | 293 | call_site: DUMMY_SP, |
8faf50e0 | 294 | def_site: None, |
b7449926 | 295 | format: MacroAttribute(Symbol::intern("test_case")), |
8faf50e0 XL |
296 | allow_internal_unstable: true, |
297 | allow_internal_unsafe: false, | |
298 | local_inner_macros: false, | |
299 | edition: hygiene::default_edition(), | |
1a4d82fc JJ |
300 | }); |
301 | ||
9e0c209e | 302 | TestHarnessGenerator { |
3b2f2976 | 303 | cx, |
1a4d82fc JJ |
304 | tests: Vec::new(), |
305 | tested_submods: Vec::new(), | |
9e0c209e | 306 | }.fold_crate(krate) |
1a4d82fc JJ |
307 | } |
308 | ||
85aaf69f | 309 | /// Craft a span that will be ignored by the stability lint's |
b7449926 | 310 | /// call to source_map's `is_internal` check. |
85aaf69f SL |
311 | /// The expanded code calls some unstable functions in the test crate. |
312 | fn ignored_span(cx: &TestCtxt, sp: Span) -> Span { | |
ea8adc8c | 313 | sp.with_ctxt(cx.ctxt) |
85aaf69f SL |
314 | } |
315 | ||
1a4d82fc JJ |
316 | enum HasTestSignature { |
317 | Yes, | |
83c7162d XL |
318 | No(BadTestSignature), |
319 | } | |
320 | ||
321 | #[derive(PartialEq)] | |
322 | enum BadTestSignature { | |
1a4d82fc | 323 | NotEvenAFunction, |
83c7162d XL |
324 | WrongTypeSignature, |
325 | NoArgumentsAllowed, | |
326 | ShouldPanicOnlyWithNoArgs, | |
1a4d82fc JJ |
327 | } |
328 | ||
b7449926 XL |
329 | /// Creates a function item for use as the main function of a test build. |
330 | /// This function will call the `test_runner` as specified by the crate attribute | |
85aaf69f SL |
331 | fn mk_main(cx: &mut TestCtxt) -> P<ast::Item> { |
332 | // Writing this out by hand with 'ignored_span': | |
333 | // pub fn main() { | |
334 | // #![main] | |
b7449926 | 335 | // test::test_main_static(::std::os::args().as_slice(), &[..tests]); |
85aaf69f | 336 | // } |
85aaf69f SL |
337 | let sp = ignored_span(cx, DUMMY_SP); |
338 | let ecx = &cx.ext_cx; | |
b7449926 | 339 | let test_id = ecx.ident_of("test").gensym(); |
476ff2be | 340 | |
85aaf69f | 341 | // test::test_main_static(...) |
b7449926 XL |
342 | let mut test_runner = cx.test_runner.clone().unwrap_or( |
343 | ecx.path(sp, vec![ | |
344 | test_id, ecx.ident_of("test_main_static") | |
345 | ])); | |
346 | ||
347 | test_runner.span = sp; | |
348 | ||
349 | let test_main_path_expr = ecx.expr_path(test_runner.clone()); | |
85aaf69f | 350 | let call_test_main = ecx.expr_call(sp, test_main_path_expr, |
b7449926 | 351 | vec![mk_tests_slice(cx)]); |
85aaf69f | 352 | let call_test_main = ecx.stmt_expr(call_test_main); |
b7449926 | 353 | |
85aaf69f | 354 | // #![main] |
476ff2be | 355 | let main_meta = ecx.meta_word(sp, Symbol::intern("main")); |
85aaf69f | 356 | let main_attr = ecx.attribute(sp, main_meta); |
b7449926 XL |
357 | |
358 | // extern crate test as test_gensym | |
359 | let test_extern_stmt = ecx.stmt_item(sp, ecx.item(sp, | |
360 | test_id, | |
361 | vec![], | |
362 | ast::ItemKind::ExternCrate(Some(Symbol::intern("test"))) | |
363 | )); | |
364 | ||
85aaf69f | 365 | // pub fn main() { ... } |
7453a54e | 366 | let main_ret_ty = ecx.ty(sp, ast::TyKind::Tup(vec![])); |
b7449926 XL |
367 | |
368 | // If no test runner is provided we need to import the test crate | |
369 | let main_body = if cx.test_runner.is_none() { | |
370 | ecx.block(sp, vec![test_extern_stmt, call_test_main]) | |
371 | } else { | |
372 | ecx.block(sp, vec![call_test_main]) | |
373 | }; | |
374 | ||
0531ce1d | 375 | let main = ast::ItemKind::Fn(ecx.fn_decl(vec![], ast::FunctionRetTy::Ty(main_ret_ty)), |
8faf50e0 | 376 | ast::FnHeader::default(), |
83c7162d XL |
377 | ast::Generics::default(), |
378 | main_body); | |
b7449926 XL |
379 | |
380 | // Honor the reexport_test_harness_main attribute | |
381 | let main_id = Ident::new( | |
382 | cx.reexport_test_harness_main.unwrap_or(Symbol::gensym("main")), | |
383 | sp); | |
384 | ||
7cac9316 | 385 | P(ast::Item { |
b7449926 | 386 | ident: main_id, |
85aaf69f SL |
387 | attrs: vec![main_attr], |
388 | id: ast::DUMMY_NODE_ID, | |
389 | node: main, | |
0531ce1d | 390 | vis: dummy_spanned(ast::VisibilityKind::Public), |
3b2f2976 XL |
391 | span: sp, |
392 | tokens: None, | |
7cac9316 | 393 | }) |
1a4d82fc | 394 | |
1a4d82fc JJ |
395 | } |
396 | ||
476ff2be | 397 | fn path_name_i(idents: &[Ident]) -> String { |
0531ce1d XL |
398 | let mut path_name = "".to_string(); |
399 | let mut idents_iter = idents.iter().peekable(); | |
400 | while let Some(ident) = idents_iter.next() { | |
94b46f34 | 401 | path_name.push_str(&ident.as_str()); |
b7449926 | 402 | if idents_iter.peek().is_some() { |
0531ce1d XL |
403 | path_name.push_str("::") |
404 | } | |
405 | } | |
406 | path_name | |
54a0048b SL |
407 | } |
408 | ||
b7449926 XL |
409 | /// Creates a slice containing every test like so: |
410 | /// &[path::to::test1, path::to::test2] | |
411 | fn mk_tests_slice(cx: &TestCtxt) -> P<ast::Expr> { | |
412 | debug!("building test vector from {} tests", cx.test_cases.len()); | |
413 | let ref ecx = cx.ext_cx; | |
414 | ||
415 | ecx.expr_vec_slice(DUMMY_SP, | |
416 | cx.test_cases.iter().map(|test| { | |
417 | ecx.expr_addr_of(test.span, | |
418 | ecx.expr_path(ecx.path(test.span, visible_path(cx, &test.path)))) | |
419 | }).collect()) | |
1a4d82fc JJ |
420 | } |
421 | ||
b7449926 XL |
422 | /// Creates a path from the top-level __test module to the test via __test_reexports |
423 | fn visible_path(cx: &TestCtxt, path: &[Ident]) -> Vec<Ident>{ | |
0531ce1d | 424 | let mut visible_path = vec![]; |
0531ce1d XL |
425 | match cx.toplevel_reexport { |
426 | Some(id) => visible_path.push(id), | |
1a4d82fc | 427 | None => { |
b7449926 | 428 | cx.span_diagnostic.bug("expected to find top-level re-export name, but found None"); |
0531ce1d | 429 | } |
b7449926 XL |
430 | } |
431 | visible_path.extend_from_slice(path); | |
432 | visible_path | |
433 | } | |
0531ce1d | 434 | |
b7449926 XL |
435 | fn is_test_case(i: &ast::Item) -> bool { |
436 | attr::contains_name(&i.attrs, "rustc_test_marker") | |
437 | } | |
1a4d82fc | 438 | |
b7449926 XL |
439 | fn get_test_runner(sd: &errors::Handler, krate: &ast::Crate) -> Option<ast::Path> { |
440 | let test_attr = attr::find_by_name(&krate.attrs, "test_runner")?; | |
441 | if let Some(meta_list) = test_attr.meta_item_list() { | |
442 | if meta_list.len() != 1 { | |
443 | sd.span_fatal(test_attr.span(), | |
444 | "#![test_runner(..)] accepts exactly 1 argument").raise() | |
445 | } | |
446 | Some(meta_list[0].word().as_ref().unwrap().ident.clone()) | |
447 | } else { | |
448 | sd.span_fatal(test_attr.span(), | |
449 | "test_runner must be of the form #[test_runner(..)]").raise() | |
450 | } | |
1a4d82fc | 451 | } |