Merge pull request #713 from raccube/kjk/console-stdin

Kjk/console stdin

j5/backends/console/console.py

@@ -1,5 +1,5 @@
 """Console helper classes."""
-
+import sys
 from typing import Callable, Dict, Optional, Type, TypeVar
 
 T = TypeVar("T")
@@ -29,9 +29,12 @@ def read(  # type: ignore
             self,
             prompt: str,
             return_type: Optional[Type[T]] = str,  # type: ignore
+            check_stdin: bool = True,
     ) -> T:
         """Get a value of type 'return_type' from the user."""
-        if return_type is not None:
+        if check_stdin and return_type is bool and not sys.stdin.isatty():
+            return False  # type: ignore
+        elif return_type is not None:
             while True:
                 response = self._input(f"{self._descriptor}: {prompt}: ")
                 try:

tests/backends/console/test_env.py

@@ -120,17 +120,17 @@ def is_finished(self) -> bool:
     )
 
     for _ in MockConsoleState.true_cases:
-        val = console.read("I want an bool", bool)
+        val = console.read("I want an bool", bool, check_stdin=False)
         assert isinstance(val, bool)
         assert val
 
     for _ in MockConsoleState.false_cases:
-        val = console.read("I want an bool", bool)
+        val = console.read("I want an bool", bool, check_stdin=False)
         assert isinstance(val, bool)
         assert not val
 
     # Test if false inputs are skipped.
-    val = console.read("I want an bool", bool)
+    val = console.read("I want an bool", bool, check_stdin=False)
     assert isinstance(val, bool)
     assert val