Auto merge of #42631 - malbarbo:wasm32, r=alexcrichton

Add a travis builder for wasm32-unknown-emscripten

This commits add an entry to travis matrix that will execute wasm32-unknown-emscripten tests suites.

- Emscripten for asmjs was updated to sdk-1.37.13-64bit
- The tests are run with node 8.0.0 (it can execute wasm)
- A wrapper script is used to run each test from the directory where it is (workaround for https://github.com/kripken/emscripten/issues/4542)
- Some tests are ignore, see #42629 and #42630

5 files changed, 8 insertions, 0 deletions

diff --git a/src/libcore/tests/num/dec2flt/mod.rs b/src/libcore/tests/num/dec2flt/mod.rs
index 5d546c643e7..9934e1dab96 100644
--- a/src/libcore/tests/num/dec2flt/mod.rs
+++ b/src/libcore/tests/num/dec2flt/mod.rs
@@ -33,6 +33,7 @@ macro_rules! test_literal {
     })
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn ordinary() {
     test_literal!(1.0);
@@ -43,6 +44,7 @@ fn ordinary() {
     test_literal!(2.2250738585072014e-308);
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn special_code_paths() {
     test_literal!(36893488147419103229.0); // 2^65 - 3, triggers half-to-even with even significand
diff --git a/src/libcore/tests/num/dec2flt/rawfp.rs b/src/libcore/tests/num/dec2flt/rawfp.rs
index 2b0afc40202..c9cd2bf5a9a 100644
--- a/src/libcore/tests/num/dec2flt/rawfp.rs
+++ b/src/libcore/tests/num/dec2flt/rawfp.rs
@@ -86,6 +86,7 @@ fn rounding_overflow() {
     assert_eq!(rounded.k, adjusted_k + 1);
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn prev_float_monotonic() {
     let mut x = 1.0;
@@ -121,6 +122,7 @@ fn next_float_inf() {
     assert_eq!(next_float(f64::INFINITY), f64::INFINITY);
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn next_prev_identity() {
     for &x in &SOME_FLOATS {
@@ -131,6 +133,7 @@ fn next_prev_identity() {
     }
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn next_float_monotonic() {
     let mut x = 0.49999999999999;
diff --git a/src/libcore/tests/num/flt2dec/strategy/dragon.rs b/src/libcore/tests/num/flt2dec/strategy/dragon.rs
index 4edb0f3df60..03772a765cc 100644
--- a/src/libcore/tests/num/flt2dec/strategy/dragon.rs
+++ b/src/libcore/tests/num/flt2dec/strategy/dragon.rs
@@ -24,6 +24,7 @@ fn test_mul_pow10() {
     }
 }
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn shortest_sanity_test() {
     f64_shortest_sanity_test(format_shortest);
diff --git a/src/libcore/tests/num/flt2dec/strategy/grisu.rs b/src/libcore/tests/num/flt2dec/strategy/grisu.rs
index 79e66ee669e..17fb99bcc92 100644
--- a/src/libcore/tests/num/flt2dec/strategy/grisu.rs
+++ b/src/libcore/tests/num/flt2dec/strategy/grisu.rs
@@ -38,6 +38,7 @@ fn test_max_pow10_no_more_than() {
 }
 
 
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn shortest_sanity_test() {
     f64_shortest_sanity_test(format_shortest);
diff --git a/src/libcore/tests/num/mod.rs b/src/libcore/tests/num/mod.rs
index 51737c9c3b4..8fdcc36a268 100644
--- a/src/libcore/tests/num/mod.rs
+++ b/src/libcore/tests/num/mod.rs
@@ -169,6 +169,7 @@ test_impl_from! { test_u16f64, u16, f64 }
 test_impl_from! { test_u32f64, u32, f64 }
 
 // Float -> Float
+#[cfg_attr(all(target_arch = "wasm32", target_os = "emscripten"), ignore)] // issue 42630
 #[test]
 fn test_f32f64() {
     use core::f32;