wasmer/spectests/README.md
Syrus Akbary 3c092e0aac Updated spectests README
AssertReturnCanonicalNan and AssertReturnArithmeticNan are now implemented
2018-11-02 11:39:47 +01:00

3.9 KiB

This directory contains tests for the core WebAssembly semantics, as described in Semantics.md and specified by the spec interpreter.

This files should be a direct copy of the original WebAssembly spec tests.

Tests are written in the S-Expression script format defined by the interpreter.

Autogenerated Rust test cases

This files will serve as base for autogenerating Rust testcases when WASM_GENERATE_SPECTESTS=1 cargo build is executed (src/build_spectests.rs).

The result autogenerated spectests live in the src/spectests directory.

Testcases

Currently supported command assertions:

  • Module mostly implemented (it should support named modules (module $Xx)).
  • AssertReturn mostly implemented (it should support calls to named modules (invoke $Xx "call")).
  • AssertReturnCanonicalNan fully implemented
  • AssertReturnArithmeticNan fully implemented
  • AssertTrap not implemented yet
  • AssertInvalid Fully implemented (it should not require to do validation separate from compilation)
  • AssertMalformed Fully implemented
  • AssertUninstantiable not implemented yet
  • AssertExhaustion not implemented yet
  • Register not implemented yet
  • PerformAction partially implemented, only function invokations for now

Covered spectests

This spectests are currently covered:

  • address.wast
  • align.wast
  • binary.wast
  • block.wast
  • br.wast
  • br_if.wast
  • br_table.wast
  • break-drop.wast
  • call.wast
  • call_indirect.wast
  • comments.wast
  • const.wast
  • conversions.wast
  • custom.wast
  • data.wast
  • elem.wast
  • endianness.wast
  • exports.wast
  • f32.wast
  • f32_bitwise.wast
  • f32_cmp.wast
  • f64.wast
  • f64_bitwise.wast
  • f64_cmp.wast
  • fac.wast
  • float_exprs.wast
  • float_literals.wast
  • float_memory.wast
  • float_misc.wast
  • forward.wast
  • func.wast
  • func_ptrs.wast
  • get_local.wast
  • globals.wast
  • i32.wast
  • i64.wast
  • if.wast
  • imports.wast
  • inline-module.wast
  • int_exprs.wast
  • int_literals.wast
  • labels.wast
  • left-to-right.wast
  • linking.wast
  • loop.wast
  • memory.wast
  • memory_grow.wast
  • memory_redundancy.wast
  • memory_trap.wast
  • names.wast
  • nop.wast
  • return.wast
  • select.wast
  • set_local.wast
  • skip-stack-guard-page.wast
  • stack.wast
  • start.wast
  • store_retval.wast
  • switch.wast
  • tee_local.wast
  • token.wast
  • traps.wast
  • type.wast
  • typecheck.wast
  • unreachable.wast
  • unreached-invalid.wast
  • unwind.wast
  • utf8-custom-section-id.wast
  • utf8-import-field.wast
  • utf8-import-module.wast
  • utf8-invalid-encoding.wast

Specific non-supported cases

There are some cases that we decided to skip for now to fasten the time to release:

  • SKIP_MEMORY_GROW: When accessing to the context memories multiple times, the mutable access to a memory index raises an error. For this reason we decied to skip the tests (for now) until this issue is resolved. Spectests affected:
    • block.wast
    • call_indirect.wast
    • call.wast
    • globals.wast
    • loop.wast
    • if.wast
    • nop.wast
  • SKIP_MUTABLE_GLOBALS: Right now the WASM parser can't validate a module with imported/exported mut globals. We decided to skip the tests until Cranelift and wasmparser can handle this (original spec proposal: https://github.com/WebAssembly/mutable-global). Spectests affected:
    • globals.wast