Add Emscripten build in Travis

test_suite/tests/test_de.rs

@@ -156,8 +156,12 @@ macro_rules! declare_tests {
         )+
     };
 
-    ($($name:ident { $($value:expr => $tokens:expr,)+ })+) => {
+    ($(
+        $(#[$cfg:meta])*
+        $name:ident { $($value:expr => $tokens:expr,)+ }
+    )+) => {
         $(
+            $(#[$cfg])*
             #[test]
             fn $name() {
                 $(
@@ -260,6 +264,7 @@ declare_tests! {
         0f32 => &[Token::F32(0.)],
         0f64 => &[Token::F64(0.)],
     }
+    #[cfg(not(target_arch = "wasm32"))]
     test_small_int_to_128 {
         1i128 => &[Token::I8(1)],
         1i128 => &[Token::I16(1)],

test_suite/tests/test_ser.rs

@@ -618,6 +618,7 @@ fn test_enum_skipped() {
     );
 }
 
+#[cfg(not(target_arch = "wasm32"))]
 #[test]
 fn test_integer128() {
     assert_ser_tokens_error(&1i128, &[], "i128 is not supported");

test_suite/tests/test_value.rs

@@ -26,6 +26,7 @@ fn test_u32_to_enum() {
     assert_eq!(E::B, e);
 }
 
+#[cfg(not(target_arch = "wasm32"))]
 #[test]
 fn test_integer128() {
     let de_u128 = IntoDeserializer::<value::Error>::into_deserializer(1u128);