tests: Improve testing infrastructure

Move common test code to a reusable module, and have many different test
files use this common module. This then eliminates the need for many
different cargo features, and makes the code much more readable.

We also add testing for custom/cpurand, making sure it builds/links on
our various x86 targets.

Signed-off-by: Joe Richey <[email protected]>

.travis.yml

@@ -76,9 +76,9 @@ matrix:
         - cargo web test --target=wasm32-unknown-unknown
         # wasm-bindgen tests (Node, Firefox, Chrome)
         - cd ../wasm-bindgen
-        - cargo test --target wasm32-unknown-unknown
-        - GECKODRIVER=$HOME/geckodriver cargo test --target wasm32-unknown-unknown --features=test-in-browser
-        - CHROMEDRIVER=$HOME/chromedriver cargo test --target wasm32-unknown-unknown --features=test-in-browser
+        - cargo test --target wasm32-unknown-unknown --test node
+        - GECKODRIVER=$HOME/geckodriver cargo test --target wasm32-unknown-unknown --test web
+        - CHROMEDRIVER=$HOME/chromedriver cargo test --target wasm32-unknown-unknown --test web
 
     - &nightly_and_docs
       name: "Linux, nightly, docs"
@@ -122,20 +122,8 @@ matrix:
         - rustup component add rust-src
         - cargo install cargo-xbuild || true
       script:
-        - cargo build --target=x86_64-sun-solaris
-        - cargo build --target=x86_64-unknown-cloudabi
-        - cargo build --target=x86_64-unknown-freebsd
-        - cargo build --target=x86_64-fuchsia
-        - cargo build --target=x86_64-unknown-netbsd
-        - cargo build --target=x86_64-unknown-redox
-        - cargo build --target=x86_64-fortanix-unknown-sgx
-        - cargo xbuild --target=x86_64-unknown-uefi
-        - cargo xbuild --target=x86_64-unknown-hermit
-        - cargo xbuild --target=x86_64-unknown-l4re-uclibc
-        - cargo xbuild --target=x86_64-uwp-windows-gnu
-        - cargo xbuild --target=x86_64-wrs-vxworks
-        # also test minimum dependency versions are usable
-        - cargo generate-lockfile -Z minimal-versions
+        # We test that getrandom and cpurand build for all x86 targets
+        - cd custom/cpurand
         - cargo build --target=x86_64-sun-solaris
         - cargo build --target=x86_64-unknown-cloudabi
         - cargo build --target=x86_64-unknown-freebsd

custom/cpurand/Cargo.toml

@@ -10,12 +10,8 @@ repository = "https://github.com/rust-random/getrandom"
 categories = ["hardware-support", "no-std"]
 
 [dependencies]
-cfg-if = "0.1.2"
 getrandom = { path = "../..", version = "0.2", features = ["custom"] }
-
-[[test]]
-name = "common"
-path = "../../tests/common.rs"
+cfg-if = "0.1.2"
 
 [package.metadata.docs.rs]
 default-target = "x86_64-unknown-linux"

custom/cpurand/tests/cpurand.rs

@@ -0,0 +1,4 @@
+// Call cpurand so that it will be invoked on std targets (like Linux).
+use cpurand_getrandom::cpurand as getrandom;
+#[path = "../../../tests/common/mod.rs"]
+mod common;

custom/cpurand/tests/normal.rs

@@ -0,0 +1,6 @@
+// Explicitly use the Custom RNG crate to link it in.
+use cpurand_getrandom as _;
+
+use getrandom::getrandom;
+#[path = "../../../tests/common/mod.rs"]
+mod common;

custom/stdweb/Cargo.toml

@@ -13,14 +13,5 @@ categories = ["wasm"]
 getrandom = { path = "../..", version = "0.2", features = ["custom"] }
 stdweb = "0.4.18"
 
-# Test-only features allowing us to reuse most of the code in common.rs
-[features]
-default = ["test-stdweb"]
-test-stdweb = []
-
-[[test]]
-name = "common"
-path = "../../tests/common.rs"
-
 [package.metadata.docs.rs]
-default-target = "wasm32-unknown-unknown"
+default-target = "wasm32-unknown-unknown"

custom/stdweb/tests/test.rs

@@ -0,0 +1,7 @@
+// Explicitly use the Custom RNG crate to link it in.
+use stdweb_getrandom as _;
+
+use getrandom::getrandom;
+use test;
+#[path = "../../../tests/common/mod.rs"]
+mod common;

custom/wasm-bindgen/Cargo.toml

@@ -11,20 +11,10 @@ categories = ["wasm"]
 
 [dependencies]
 getrandom = { path = "../..", version = "0.2", features = ["custom"] }
-wasm-bindgen = "0.2.29"
+wasm-bindgen = "0.2.46"
 
 [dev-dependencies]
-wasm-bindgen-test = "0.2"
-
-# Test-only features allowing us to reuse most of the code in common.rs
-[features]
-default = ["test-bindgen"]
-test-bindgen = []
-test-in-browser = ["test-bindgen"]
-
-[[test]]
-name = "common"
-path = "../../tests/common.rs"
+wasm-bindgen-test = "0.2.46"
 
 [package.metadata.docs.rs]
-default-target = "wasm32-unknown-unknown"
+default-target = "wasm32-unknown-unknown"

custom/wasm-bindgen/tests/node.rs

@@ -0,0 +1,7 @@
+// Explicitly use the Custom RNG crate to link it in.
+use wasm_bindgen_getrandom as _;
+
+use getrandom::getrandom;
+use wasm_bindgen_test::wasm_bindgen_test as test;
+#[path = "../../../tests/common/mod.rs"]
+mod common;

custom/wasm-bindgen/tests/web.rs

@@ -0,0 +1,9 @@
+// Explicitly use the Custom RNG crate to link it in.
+use wasm_bindgen_getrandom as _;
+
+wasm_bindgen_test::wasm_bindgen_test_configure!(run_in_browser);
+
+use getrandom::getrandom;
+use wasm_bindgen_test::wasm_bindgen_test as test;
+#[path = "../../../tests/common/mod.rs"]
+mod common;

tests/common.rs → tests/common/mod.rs

@@ -1,25 +1,17 @@
 // Explicitly use the Custom RNG crates to link them in.
 #[cfg(feature = "test-stdweb")]
 use stdweb_getrandom as _;
-#[cfg(feature = "test-bindgen")]
-use wasm_bindgen_getrandom as _;
 
-#[cfg(feature = "test-bindgen")]
-use wasm_bindgen_test::*;
+use super::getrandom;
+#[cfg(all(target_arch = "wasm32", target_os = "unknown"))]
+use super::test;
 
-use getrandom::getrandom;
-
-#[cfg(feature = "test-in-browser")]
-wasm_bindgen_test_configure!(run_in_browser);
-
-#[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 = "test-bindgen", wasm_bindgen_test)]
 #[test]
 fn test_diff() {
     let mut v1 = [0u8; 1000];
@@ -37,14 +29,14 @@ fn test_diff() {
     assert!(n_diff_bits >= v1.len() as u32);
 }
 
-#[cfg_attr(feature = "test-bindgen", wasm_bindgen_test)]
 #[test]
 fn test_huge() {
     let mut huge = [0u8; 100_000];
     getrandom(&mut huge).unwrap();
 }
 
-#[cfg(any(unix, windows, target_os = "redox", target_os = "fuchsia"))]
+// On WASM, the thread API always fails/panics
+#[cfg(all(feature = "std", not(target_arch = "wasm32")))]
 #[test]
 fn test_multithreading() {
     use std::sync::mpsc::channel;

tests/test.rs

@@ -0,0 +1,2 @@
+use getrandom::getrandom;
+mod common;