Fix emtests and wasitests to use the correct backend

Makefile

@@ -53,13 +53,13 @@ spectests: spectests-singlepass spectests-cranelift spectests-llvm
 
 # Emscripten tests
 emtests-singlepass:
-	cargo test emtest --release --no-default-features --features "wasi backend-singlepass" -- --test-threads=1
+	WASMER_TEST_SINGLEPASS=1 cargo test emtest --release --no-default-features --features "wasi backend-singlepass" -- --test-threads=1
 
 emtests-cranelift:
-	cargo test emtest --release --no-default-features --features "wasi backend-cranelift" -- --test-threads=1
+	WASMER_TEST_CRANELIFT=1 cargo test emtest --release --no-default-features --features "wasi backend-cranelift" -- --test-threads=1
 
 emtests-llvm:
-	cargo test emtest --release --no-default-features --features "wasi backend-llvm" -- --test-threads=1
+	WASMER_TEST_LLVM=1 cargo test emtest --release --no-default-features --features "wasi backend-llvm" -- --test-threads=1
 
 emtests-unit:
 	cargo test emscripten --release
@@ -86,13 +86,13 @@ wasitests-setup:
 	mkdir -p tests/wasi_test_resources/test_fs/temp
 
 wasitests-singlepass: wasitests-setup
-	cargo test wasitest --release --no-default-features --features "wasi backend-singlepass" -- --test-threads=1
+	WASMER_TEST_SINGLEPASS=1 cargo test wasitest --release --no-default-features --features "wasi backend-singlepass" -- --test-threads=1
 
 wasitests-cranelift: wasitests-setup
-	cargo test wasitest --release --no-default-features --features "wasi backend-cranelift" -- --test-threads=1 --nocapture
+	WASMER_TEST_CRANELIFT=1 cargo test wasitest --release --no-default-features --features "wasi backend-cranelift" -- --test-threads=1 --nocapture
 
 wasitests-llvm: wasitests-setup
-	cargo test wasitest --release --no-default-features --features "wasi backend-llvm" -- --test-threads=1
+	WASMER_TEST_LLVM=1 cargo test wasitest --release --no-default-features --features "wasi backend-llvm" -- --test-threads=1
 
 wasitests-unit: wasitests-setup
 	cargo test --manifest-path lib/wasi/Cargo.toml --release
@@ -174,9 +174,9 @@ test-android:
 # Integration tests
 integration-tests: release-clif examples
 	echo "Running Integration Tests"
-	./integration_tests/lua/test.sh
-	./integration_tests/nginx/test.sh
-	./integration_tests/cowsay/test.sh
+	./tests/integration_tests/lua/test.sh
+	./tests/integration_tests/nginx/test.sh
+	./tests/integration_tests/cowsay/test.sh
 
 examples:
 	cargo run --example plugin
@@ -287,12 +287,14 @@ release-llvm:
 	cargo build --release --features backend-llvm,experimental-io-devices
 
 bench-singlepass:
+# NOTE this will run some benchmarks using clif; TODO: fix this
 	cargo bench --all --no-default-features --features "backend-singlepass" \
 	--exclude wasmer-clif-backend --exclude wasmer-llvm-backend --exclude wasmer-kernel-loader
 bench-clif:
 	cargo bench --all --no-default-features --features "backend-cranelift" \
 	--exclude wasmer-singlepass-backend --exclude wasmer-llvm-backend --exclude wasmer-kernel-loader
 bench-llvm:
+# NOTE this will run some benchmarks using clif; TODO: fix this
 	cargo bench --all --no-default-features --features "backend-llvm" \
 	--exclude wasmer-singlepass-backend --exclude wasmer-clif-backend --exclude wasmer-kernel-loader
 

tests/emtests/_common.rs

@@ -1,3 +1,35 @@
+use std::env;
+use wasmer_runtime::Backend;
+
+pub fn get_backend() -> Option<Backend> {
+    #[cfg(feature = "backend-cranelift")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_CLIF") {
+            if v == "1" {
+                return Some(Backend::Cranelift);
+            }
+        }
+    }
+    #[cfg(feature = "backend-llvm")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_LLVM") {
+            if v == "1" {
+                return Some(Backend::LLVM);
+            }
+        }
+    }
+    #[cfg(feature = "backend-singlepass")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_SINGLEPASS") {
+            if v == "1" {
+                return Some(Backend::Singlepass);
+            }
+        }
+    }
+
+    None
+}
+
 macro_rules! assert_emscripten_output {
     ($file:expr, $name:expr, $args:expr, $expected:expr) => {{
 
@@ -5,16 +37,14 @@ macro_rules! assert_emscripten_output {
             EmscriptenGlobals,
             generate_emscripten_env,
         };
-        use wasmer_runtime::compile;
         use wasmer_dev_utils::stdio::StdioCapturer;
 
         let wasm_bytes = include_bytes!($file);
+        let backend = $crate::emtests::_common::get_backend().expect("Please set one of `WASMER_TEST_CLIF`, `WASMER_TEST_LLVM`, or `WASMER_TEST_SINGELPASS` to `1`.");
+        let compiler = wasmer_runtime::compiler_for_backend(backend).expect("The desired compiler was not found!");
 
-        let module = compile(&wasm_bytes[..])
-            .expect("WASM can't be compiled");
+        let module = wasmer_runtime::compile_with_config_with(&wasm_bytes[..], Default::default(), &*compiler).expect("WASM can't be compiled");
 
-//        let module = compile(&wasm_bytes[..])
-//            .map_err(|err| format!("Can't create the WebAssembly module: {}", err)).unwrap(); // NOTE: Need to figure what the unwrap is for ??
         let mut emscripten_globals = EmscriptenGlobals::new(&module).expect("globals are valid");
         let import_object = generate_emscripten_env(&mut emscripten_globals);
 

tests/wasitests/_common.rs

@@ -1,3 +1,35 @@
+use std::env;
+use wasmer_runtime::Backend;
+
+pub fn get_backend() -> Option<Backend> {
+    #[cfg(feature = "backend-cranelift")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_CLIF") {
+            if v == "1" {
+                return Some(Backend::Cranelift);
+            }
+        }
+    }
+    #[cfg(feature = "backend-llvm")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_LLVM") {
+            if v == "1" {
+                return Some(Backend::LLVM);
+            }
+        }
+    }
+    #[cfg(feature = "backend-singlepass")]
+    {
+        if let Ok(v) = env::var("WASMER_TEST_SINGLEPASS") {
+            if v == "1" {
+                return Some(Backend::Singlepass);
+            }
+        }
+    }
+
+    None
+}
+
 macro_rules! assert_wasi_output {
     ($file:expr, $name:expr, $po_dir_args: expr, $mapdir_args:expr, $envvar_args:expr, $expected:expr) => {{
         use wasmer_dev_utils::stdio::StdioCapturer;
@@ -5,8 +37,10 @@ macro_rules! assert_wasi_output {
         use wasmer_wasi::{generate_import_object_for_version, get_wasi_version};
 
         let wasm_bytes = include_bytes!($file);
+        let backend = $crate::wasitests::_common::get_backend().expect("Please set one of `WASMER_TEST_CLIF`, `WASMER_TEST_LLVM`, or `WASMER_TEST_SINGELPASS` to `1`.");
+        let compiler = wasmer_runtime::compiler_for_backend(backend).expect("The desired compiler was not found!");
 
-        let module = wasmer_runtime::compile(&wasm_bytes[..]).expect("WASM can't be compiled");
+        let module = wasmer_runtime::compile_with_config_with(&wasm_bytes[..], Default::default(), &*compiler).expect("WASM can't be compiled");
 
         let wasi_version = get_wasi_version(&module, true).expect("WASI module");