added synced parameters

tests/test_variableparameters.py

@@ -102,6 +102,53 @@ def test_constant_list():
         conf.y(6)
 
 
+def test_simple_synchronize():
+    """synchronize 2 variable fields"""
+
+    @vdataclass
+    class Conf:
+        x: Variable = vfield(default=[1, 2, 7])
+        y: Variable = vfield(default=[2, 0, 0], sync=x)
+
+    conf = Conf()
+    assert conf.x(0) == 1
+    assert conf.x(1) == 2
+    assert conf.x(2) == 7
+    assert conf.y(0) == 2
+    assert conf.y(1) == 0
+    assert conf.y(2) == 0
+
+    with pytest.raises(ValueError):
+        conf.y(3)
+    with pytest.raises(ValueError):
+        conf.x(3)
+
+
+def test_sync_strict():
+    @vdataclass
+    class Conf:
+        x: Variable = vfield(default=[1, 2, 7])
+        y: Variable = vfield(default=[2, 0], sync=x)
+
+    conf = Conf()
+    assert conf.x(2) == 7
+    with pytest.raises(ValueError):
+        conf.y(0)
+
+    conf.x = [78, 55]
+    assert len(conf) == 2
+    assert conf.y(1) == 0
+    assert conf.x(1) == 55
+
+    with pytest.raises(ValueError):
+        conf.y = [1, 2, 3]
+
+    conf.x = [11, 22, 33, 44, 55]
+    conf.y = [0, 1, 33, 111, 1111]
+    assert conf.x(2) == conf.y(2) == 33
+    assert len(conf) == len(conf.x) == len(conf.y) == 5
+
+
 def test_decoration():
     """proper construction of the class"""
 
@@ -275,15 +322,3 @@ def test_filter():
 
     mat = np.random.rand(70, 12, 11)
     assert f(mat.reshape(len(conf), 11), squeeze=False).shape == (12, 1, 1, 3, 11)
-
-
-def test_param_parsing():
-    """parsing a string or path returns the correct values"""
-
-
-def test_config_parsing():
-    """parsing a string returns the exact id corresponding to the string/path"""
-
-
-def test_repr():
-    """print a config object correctly"""