[libgpiod][PATCH v3 06/14] bindings: python: tests: add tests for bias flags

[Kent Gibson <warthog618@gmail.com>]

Extend test coverage to cover the bias flags in requests and the bias
setting returned by line.bias().

Signed-off-by: Kent Gibson <warthog618@gmail.com>
---
 bindings/python/tests/gpiod_py_test.py | 91 ++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diff --git a/bindings/python/tests/gpiod_py_test.py b/bindings/python/tests/gpiod_py_test.py
index ed31c8e..9330b43 100755
--- a/bindings/python/tests/gpiod_py_test.py
+++ b/bindings/python/tests/gpiod_py_test.py
@@ -306,6 +306,97 @@ class LineInfo(MockupTestCase):
             self.assertTrue(line.is_requested())
             self.assertTrue(line.is_open_drain())
             self.assertFalse(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_AS_IS)
+
+    def test_exported_open_drain_line(self):
+        with gpiod.Chip(mockup.chip_name(0)) as chip:
+            line = chip.get_line(4)
+            flags = gpiod.LINE_REQ_FLAG_OPEN_DRAIN
+            line.request(consumer=default_consumer,
+                         type=gpiod.LINE_REQ_DIR_OUT,
+                         flags=flags)
+            self.assertEqual(line.offset(), 4)
+            self.assertEqual(line.name(), 'gpio-mockup-A-4')
+            self.assertEqual(line.direction(), gpiod.Line.DIRECTION_OUTPUT)
+            self.assertEqual(line.active_state(), gpiod.Line.ACTIVE_HIGH)
+            self.assertEqual(line.consumer(), default_consumer)
+            self.assertTrue(line.is_used())
+            self.assertTrue(line.is_requested())
+            self.assertTrue(line.is_open_drain())
+            self.assertFalse(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_AS_IS)
+
+    def test_exported_open_source_line(self):
+        with gpiod.Chip(mockup.chip_name(0)) as chip:
+            line = chip.get_line(4)
+            flags = gpiod.LINE_REQ_FLAG_OPEN_SOURCE
+            line.request(consumer=default_consumer,
+                         type=gpiod.LINE_REQ_DIR_OUT,
+                         flags=flags)
+            self.assertEqual(line.offset(), 4)
+            self.assertEqual(line.name(), 'gpio-mockup-A-4')
+            self.assertEqual(line.direction(), gpiod.Line.DIRECTION_OUTPUT)
+            self.assertEqual(line.active_state(), gpiod.Line.ACTIVE_HIGH)
+            self.assertEqual(line.consumer(), default_consumer)
+            self.assertTrue(line.is_used())
+            self.assertTrue(line.is_requested())
+            self.assertFalse(line.is_open_drain())
+            self.assertTrue(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_AS_IS)
+
+    def test_exported_bias_disable_line(self):
+        with gpiod.Chip(mockup.chip_name(0)) as chip:
+            line = chip.get_line(4)
+            flags = gpiod.LINE_REQ_FLAG_BIAS_DISABLE
+            line.request(consumer=default_consumer,
+                         type=gpiod.LINE_REQ_DIR_OUT,
+                         flags=flags)
+            self.assertEqual(line.offset(), 4)
+            self.assertEqual(line.name(), 'gpio-mockup-A-4')
+            self.assertEqual(line.direction(), gpiod.Line.DIRECTION_OUTPUT)
+            self.assertEqual(line.active_state(), gpiod.Line.ACTIVE_HIGH)
+            self.assertEqual(line.consumer(), default_consumer)
+            self.assertTrue(line.is_used())
+            self.assertTrue(line.is_requested())
+            self.assertFalse(line.is_open_drain())
+            self.assertFalse(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_DISABLE)
+
+    def test_exported_bias_pull_down_line(self):
+        with gpiod.Chip(mockup.chip_name(0)) as chip:
+            line = chip.get_line(4)
+            flags = gpiod.LINE_REQ_FLAG_BIAS_PULL_DOWN
+            line.request(consumer=default_consumer,
+                         type=gpiod.LINE_REQ_DIR_OUT,
+                         flags=flags)
+            self.assertEqual(line.offset(), 4)
+            self.assertEqual(line.name(), 'gpio-mockup-A-4')
+            self.assertEqual(line.direction(), gpiod.Line.DIRECTION_OUTPUT)
+            self.assertEqual(line.active_state(), gpiod.Line.ACTIVE_HIGH)
+            self.assertEqual(line.consumer(), default_consumer)
+            self.assertTrue(line.is_used())
+            self.assertTrue(line.is_requested())
+            self.assertFalse(line.is_open_drain())
+            self.assertFalse(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_PULL_DOWN)
+
+    def test_exported_bias_pull_up_line(self):
+        with gpiod.Chip(mockup.chip_name(0)) as chip:
+            line = chip.get_line(4)
+            flags = gpiod.LINE_REQ_FLAG_BIAS_PULL_UP
+            line.request(consumer=default_consumer,
+                         type=gpiod.LINE_REQ_DIR_OUT,
+                         flags=flags)
+            self.assertEqual(line.offset(), 4)
+            self.assertEqual(line.name(), 'gpio-mockup-A-4')
+            self.assertEqual(line.direction(), gpiod.Line.DIRECTION_OUTPUT)
+            self.assertEqual(line.active_state(), gpiod.Line.ACTIVE_HIGH)
+            self.assertEqual(line.consumer(), default_consumer)
+            self.assertTrue(line.is_used())
+            self.assertTrue(line.is_requested())
+            self.assertFalse(line.is_open_drain())
+            self.assertFalse(line.is_open_source())
+            self.assertEqual(line.bias(), gpiod.Line.BIAS_PULL_UP)
 
     def test_update_line_info(self):
         with gpiod.Chip(mockup.chip_name(0)) as chip:
-- 
2.24.0