Merge pull request #355 from tzemanovic/tomas/fix-sm-logs

state-machine: fix logging by adding "std" feature

Author: rex-remind101

proptest-state-machine/CHANGELOG.md

@@ -1 +1,5 @@
 ## Unreleased
+
+### Bug Fixes
+
+- Fixed logging of state machine transitions to be enabled when verbose config is >= 1. The "std" feature is added to proptest-state-machine as a default feature that allows to switch the logging off in non-std env.

proptest-state-machine/Cargo.toml

@@ -13,8 +13,18 @@ description = """
 State machine based testing support for proptest.
 """
 
+[features]
+default = ["std"]
+
+# Enables the use of standard-library dependent features
+std = ["proptest/std"]
+
 [dependencies]
-proptest = { version = "1.2.0", path = "../proptest" }
+proptest = { version = "1.2.0", path = "../proptest", default-features = true, features = [
+    "fork",
+    "timeout",
+    "bit-set",
+] }
 
 [dev-dependencies]
 message-io = "0.17.0"

proptest-state-machine/src/test_runner.rs

@@ -73,9 +73,12 @@ pub trait StateMachineTest {
             <Self::Reference as ReferenceStateMachine>::Transition,
         >,
     ) {
+        #[cfg(feature = "std")]
+        use proptest::test_runner::INFO_LOG;
+
         let trans_len = transitions.len();
         #[cfg(feature = "std")]
-        if config.verbose >= super::INFO_LOG {
+        if config.verbose >= INFO_LOG {
             eprintln!();
             eprintln!("Running a test case with {} transitions.", trans_len);
         }
@@ -89,7 +92,7 @@ pub trait StateMachineTest {
 
         for (ix, transition) in transitions.into_iter().enumerate() {
             #[cfg(feature = "std")]
-            if config.verbose >= super::INFO_LOG {
+            if config.verbose >= INFO_LOG {
                 eprintln!();
                 eprintln!(
                     "Applying transition {}/{}: {:?}",