Merge pull request #355 from PyO3/pytuple_3

Into PyTuple tests, third attempt

tests/test_various.rs

@@ -1,5 +1,6 @@
 use pyo3::prelude::*;
 use pyo3::types::PyDict;
+use pyo3::types::PyTuple;
 use pyo3::wrap_pyfunction;
 use std::isize;
 
@@ -62,3 +63,59 @@ fn return_custom_class() {
     let get_zero = wrap_pyfunction!(get_zero)(py);
     py_assert!(py, get_zero, "get_zero().value == 0");
 }
+
+#[test]
+fn intopytuple_primitive() {
+    let gil = Python::acquire_gil();
+    let py = gil.python();
+
+    let tup = (1, 2, "foo");
+    py_assert!(py, tup, "tup == (1, 2, 'foo')");
+    py_assert!(py, tup, "tup[0] == 1");
+    py_assert!(py, tup, "tup[1] == 2");
+    py_assert!(py, tup, "tup[2] == 'foo'");
+}
+
+#[pyclass]
+struct SimplePyClass {}
+
+#[test]
+fn intopytuple_pyclass() {
+    let gil = Python::acquire_gil();
+    let py = gil.python();
+
+    let tup = (
+        PyRef::new(py, SimplePyClass {}).unwrap(),
+        PyRef::new(py, SimplePyClass {}).unwrap(),
+    );
+    py_assert!(py, tup, "type(tup[0]).__name__ == 'SimplePyClass'");
+    py_assert!(py, tup, "type(tup[0]).__name__ == type(tup[1]).__name__");
+    py_assert!(py, tup, "tup[0] != tup[1]");
+}
+
+#[test]
+fn pytuple_primitive_iter() {
+    let gil = Python::acquire_gil();
+    let py = gil.python();
+
+    let tup = PyTuple::new(py, [1u32, 2, 3].into_iter());
+    py_assert!(py, tup, "tup == (1, 2, 3)");
+}
+
+#[test]
+fn pytuple_pyclass_iter() {
+    let gil = Python::acquire_gil();
+    let py = gil.python();
+
+    let tup = PyTuple::new(
+        py,
+        [
+            PyRef::new(py, SimplePyClass {}).unwrap(),
+            PyRef::new(py, SimplePyClass {}).unwrap(),
+        ]
+        .into_iter(),
+    );
+    py_assert!(py, tup, "type(tup[0]).__name__ == 'SimplePyClass'");
+    py_assert!(py, tup, "type(tup[0]).__name__ == type(tup[0]).__name__");
+    py_assert!(py, tup, "tup[0] != tup[1]");
+}