Fix tests for custom RNGs

Author: josephlr

.travis.yml

@@ -68,10 +68,12 @@ matrix:
         # wasi tests
         - cargo test --target wasm32-wasi
         # stdweb tests (Node, Chrome)
-        - cargo web test --nodejs --target=wasm32-unknown-unknown --features=stdweb
-        - cargo web test --target=wasm32-unknown-unknown --features=stdweb
+        - cd custom/stdweb
+        - cargo web test --nodejs --target=wasm32-unknown-unknown
+        - cargo web test --target=wasm32-unknown-unknown
         # wasm-bindgen tests (Node, Firefox, Chrome)
-        - cargo test --target wasm32-unknown-unknown --features=wasm-bindgen
+        - cd ../wasm-bindgen
+        - cargo test --target wasm32-unknown-unknown
         - GECKODRIVER=$PWD/geckodriver cargo test --target wasm32-unknown-unknown --features=test-in-browser
         - CHROMEDRIVER=$PWD/chromedriver cargo test --target wasm32-unknown-unknown --features=test-in-browser
 

custom/stdweb/Cargo.toml

@@ -14,6 +14,11 @@ getrandom = { path = "../..", features = ["custom"] }
 stdweb = "0.4.18"
 log = "0.4"
 
+# Unstable features used to build tests correctly
+[features]
+default = ["test-stdweb"]
+test-stdweb = []
+
 [[test]]
 name = "common"
 path = "../../tests/common.rs"

custom/wasm-bindgen/Cargo.toml

@@ -13,6 +13,15 @@ categories = ["wasm"]
 getrandom = { path = "../..", features = ["custom"] }
 wasm-bindgen = "0.2.29"
 
+[dev-dependencies]
+wasm-bindgen-test = "0.2"
+
+# Unstable features used to build tests correctly
+[features]
+default = ["test-bindgen"]
+test-bindgen = []
+test-in-browser = ["test-bindgen"]
+
 [[test]]
 name = "common"
 path = "../../tests/common.rs"

tests/common.rs

@@ -1,19 +1,25 @@
-#[cfg(feature = "wasm-bindgen")]
+// Extern crate declarations needed to prevent linking issues
+#[cfg(feature = "test-stdweb")]
+extern crate getrandom_stdweb;
+#[cfg(feature = "test-bindgen")]
+extern crate getrandom_wasm_bindgen;
+
+#[cfg(feature = "test-bindgen")]
 use wasm_bindgen_test::*;
 
 use getrandom::getrandom;
 
 #[cfg(feature = "test-in-browser")]
 wasm_bindgen_test_configure!(run_in_browser);
 
-#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[cfg_attr(feature = "test-bindgen", wasm_bindgen_test)]
 #[test]
 fn test_zero() {
     // Test that APIs are happy with zero-length requests
     getrandom(&mut [0u8; 0]).unwrap();
 }
 
-#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[cfg_attr(feature = "test-bindgen", wasm_bindgen_test)]
 #[test]
 fn test_diff() {
     let mut v1 = [0u8; 1000];
@@ -31,7 +37,7 @@ fn test_diff() {
     assert!(n_diff_bits >= v1.len() as u32);
 }
 
-#[cfg_attr(feature = "wasm-bindgen", wasm_bindgen_test)]
+#[cfg_attr(feature = "test-bindgen", wasm_bindgen_test)]
 #[test]
 fn test_huge() {
     let mut huge = [0u8; 100_000];