Vendor things

third-party/vendor/eyre/tests/test_toolchain.rs

@@ -0,0 +1,34 @@
+// These tests check our build script against rustversion.
+
+#[rustversion::attr(not(nightly), ignore)]
+#[test]
+fn nightlytest() {
+    if !cfg!(nightly) {
+        panic!("nightly feature isn't set when the toolchain is nightly.");
+    }
+    if cfg!(any(beta, stable)) {
+        panic!("beta, stable, and nightly are mutually exclusive features.")
+    }
+}
+
+#[rustversion::attr(not(beta), ignore)]
+#[test]
+fn betatest() {
+    if !cfg!(beta) {
+        panic!("beta feature is not set when the toolchain is beta.");
+    }
+    if cfg!(any(nightly, stable)) {
+        panic!("beta, stable, and nightly are mutually exclusive features.")
+    }
+}
+
+#[rustversion::attr(not(stable), ignore)]
+#[test]
+fn stabletest() {
+    if !cfg!(stable) {
+        panic!("stable feature is not set when the toolchain is stable.");
+    }
+    if cfg!(any(nightly, beta)) {
+        panic!("beta, stable, and nightly are mutually exclusive features.")
+    }
+}