Rebased master branch (arrayfire#47)

* utility functions for tests

* added unit tests for range function

* Readability changes to cosntants tests

* readability changes pt.2

---------

Co-authored-by: Chaluvadi <saketh.chaluvadi@intel.com>

Author: sakchal

tests/test_constants.py

@@ -2,8 +2,23 @@
 
 import pytest
 
-import arrayfire_wrapper.dtypes as dtypes
 import arrayfire_wrapper.lib as wrapper
+from arrayfire_wrapper.dtypes import (
+    Dtype,
+    c32,
+    c64,
+    c_api_value_to_dtype,
+    f16,
+    f32,
+    f64,
+    s16,
+    s32,
+    s64,
+    u8,
+    u16,
+    u32,
+    u64,
+)
 
 invalid_shape = (
     random.randint(1, 10),
@@ -14,6 +29,9 @@
 )
 
 
+all_types = [s16, s32, s64, u8, u16, u32, u64, f16, f32, f64, c32, c64]
+
+
 @pytest.mark.parametrize(
     "shape",
     [
@@ -27,7 +45,7 @@
 def test_constant_shape(shape: tuple) -> None:
     """Test if constant creates an array with the correct shape."""
     number = 5.0
-    dtype = dtypes.s16
+    dtype = s16
 
     result = wrapper.constant(number, shape, dtype)
 
@@ -46,9 +64,8 @@ def test_constant_shape(shape: tuple) -> None:
 )
 def test_constant_complex_shape(shape: tuple) -> None:
     """Test if constant_complex creates an array with the correct shape."""
-    dtype = dtypes.c32
+    dtype = c32
 
-    dtype = dtypes.c32
     rand_array = wrapper.randu((1, 1), dtype)
     number = wrapper.get_scalar(rand_array, dtype)
 
@@ -71,7 +88,7 @@ def test_constant_complex_shape(shape: tuple) -> None:
 )
 def test_constant_long_shape(shape: tuple) -> None:
     """Test if constant_long creates an array with the correct shape."""
-    dtype = dtypes.s64
+    dtype = s64
     rand_array = wrapper.randu((1, 1), dtype)
     number = wrapper.get_scalar(rand_array, dtype)
 
@@ -93,7 +110,7 @@ def test_constant_long_shape(shape: tuple) -> None:
 )
 def test_constant_ulong_shape(shape: tuple) -> None:
     """Test if constant_ulong creates an array with the correct shape."""
-    dtype = dtypes.u64
+    dtype = u64
     rand_array = wrapper.randu((1, 1), dtype)
     number = wrapper.get_scalar(rand_array, dtype)
 
@@ -109,15 +126,15 @@ def test_constant_shape_invalid() -> None:
     """Test if constant handles a shape with greater than 4 dimensions"""
     with pytest.raises(TypeError):
         number = 5.0
-        dtype = dtypes.s16
+        dtype = s16
 
         wrapper.constant(number, invalid_shape, dtype)
 
 
 def test_constant_complex_shape_invalid() -> None:
     """Test if constant_complex handles a shape with greater than 4 dimensions"""
     with pytest.raises(TypeError):
-        dtype = dtypes.c32
+        dtype = c32
         rand_array = wrapper.randu((1, 1), dtype)
         number = wrapper.get_scalar(rand_array, dtype)
 
@@ -128,7 +145,7 @@ def test_constant_complex_shape_invalid() -> None:
 def test_constant_long_shape_invalid() -> None:
     """Test if constant_long handles a shape with greater than 4 dimensions"""
     with pytest.raises(TypeError):
-        dtype = dtypes.s64
+        dtype = s64
         rand_array = wrapper.randu((1, 1), dtype)
         number = wrapper.get_scalar(rand_array, dtype)
 
@@ -139,7 +156,7 @@ def test_constant_long_shape_invalid() -> None:
 def test_constant_ulong_shape_invalid() -> None:
     """Test if constant_ulong handles a shape with greater than 4 dimensions"""
     with pytest.raises(TypeError):
-        dtype = dtypes.u64
+        dtype = u64
         rand_array = wrapper.randu((1, 1), dtype)
         number = wrapper.get_scalar(rand_array, dtype)
 
@@ -148,50 +165,47 @@ def test_constant_ulong_shape_invalid() -> None:
 
 
 @pytest.mark.parametrize(
-    "dtype_index",
-    [i for i in range(13)],
+    "dtype",
+    all_types,
 )
-def test_constant_dtype(dtype_index: int) -> None:
+def test_constant_dtype(dtype: Dtype) -> None:
     """Test if constant creates an array with the correct dtype."""
-    if dtype_index in [1, 3] or (dtype_index == 2 and not wrapper.get_dbl_support()):
+    if is_cmplx_type(dtype) or not is_system_supported(dtype):
         pytest.skip()
 
-    dtype = dtypes.c_api_value_to_dtype(dtype_index)
-
     rand_array = wrapper.randu((1, 1), dtype)
     value = wrapper.get_scalar(rand_array, dtype)
     shape = (2, 2)
     if isinstance(value, (int, float)):
         result = wrapper.constant(value, shape, dtype)
-        assert dtypes.c_api_value_to_dtype(wrapper.get_type(result)) == dtype
+        assert c_api_value_to_dtype(wrapper.get_type(result)) == dtype
     else:
         pytest.skip()
 
 
 @pytest.mark.parametrize(
-    "dtype_index",
-    [i for i in range(13)],
+    "dtype",
+    all_types,
 )
-def test_constant_complex_dtype(dtype_index: int) -> None:
+def test_constant_complex_dtype(dtype: Dtype) -> None:
     """Test if constant_complex creates an array with the correct dtype."""
-    if dtype_index not in [1, 3] or (dtype_index == 3 and not wrapper.get_dbl_support()):
+    if not is_cmplx_type(dtype) or not is_system_supported(dtype):
         pytest.skip()
 
-    dtype = dtypes.c_api_value_to_dtype(dtype_index)
     rand_array = wrapper.randu((1, 1), dtype)
     value = wrapper.get_scalar(rand_array, dtype)
     shape = (2, 2)
 
     if isinstance(value, (int, float, complex)):
         result = wrapper.constant_complex(value, shape, dtype)
-        assert dtypes.c_api_value_to_dtype(wrapper.get_type(result)) == dtype
+        assert c_api_value_to_dtype(wrapper.get_type(result)) == dtype
     else:
         pytest.skip()
 
 
 def test_constant_long_dtype() -> None:
     """Test if constant_long creates an array with the correct dtype."""
-    dtype = dtypes.s64
+    dtype = s64
 
     rand_array = wrapper.randu((1, 1), dtype)
     value = wrapper.get_scalar(rand_array, dtype)
@@ -200,14 +214,14 @@ def test_constant_long_dtype() -> None:
     if isinstance(value, (int, float)):
         result = wrapper.constant_long(value, shape, dtype)
 
-        assert dtypes.c_api_value_to_dtype(wrapper.get_type(result)) == dtype
+        assert c_api_value_to_dtype(wrapper.get_type(result)) == dtype
     else:
         pytest.skip()
 
 
 def test_constant_ulong_dtype() -> None:
     """Test if constant_ulong creates an array with the correct dtype."""
-    dtype = dtypes.u64
+    dtype = u64
 
     rand_array = wrapper.randu((1, 1), dtype)
     value = wrapper.get_scalar(rand_array, dtype)
@@ -216,6 +230,17 @@ def test_constant_ulong_dtype() -> None:
     if isinstance(value, (int, float)):
         result = wrapper.constant_ulong(value, shape, dtype)
 
-        assert dtypes.c_api_value_to_dtype(wrapper.get_type(result)) == dtype
+        assert c_api_value_to_dtype(wrapper.get_type(result)) == dtype
     else:
         pytest.skip()
+
+
+def is_cmplx_type(dtype: Dtype) -> bool:
+    return dtype == c32 or dtype == c64
+
+
+def is_system_supported(dtype: Dtype) -> bool:
+    if dtype in [f64, c64] and not wrapper.get_dbl_support():
+        return False
+
+    return True

tests/test_range.py

@@ -0,0 +1,61 @@
+import random
+
+import pytest
+
+import arrayfire_wrapper.dtypes as dtypes
+import arrayfire_wrapper.lib as wrapper
+
+
+@pytest.mark.parametrize(
+    "shape",
+    [
+        (),
+        (random.randint(1, 10), 1),
+        (random.randint(1, 10), random.randint(1, 10)),
+        (random.randint(1, 10), random.randint(1, 10), random.randint(1, 10)),
+        (random.randint(1, 10), random.randint(1, 10), random.randint(1, 10), random.randint(1, 10)),
+    ],
+)
+def test_range_shape(shape: tuple) -> None:
+    """Test if the range function output an AFArray with the correct shape"""
+    dim = 2
+    dtype = dtypes.s16
+
+    result = wrapper.range(shape, dim, dtype)
+
+    assert wrapper.get_dims(result)[0 : len(shape)] == shape  # noqa: E203
+
+
+def test_range_invalid_shape() -> None:
+    """Test if range function correctly handles an invalid shape"""
+    with pytest.raises(TypeError):
+        shape = (
+            random.randint(1, 10),
+            random.randint(1, 10),
+            random.randint(1, 10),
+            random.randint(1, 10),
+            random.randint(1, 10),
+        )
+        dim = 2
+        dtype = dtypes.s16
+
+        wrapper.range(shape, dim, dtype)
+
+
+@pytest.mark.parametrize(
+    "shape",
+    [
+        (),
+        (random.randint(1, 10), 1),
+        (random.randint(1, 10), random.randint(1, 10)),
+        (random.randint(1, 10), random.randint(1, 10), random.randint(1, 10)),
+        (random.randint(1, 10), random.randint(1, 10), random.randint(1, 10), random.randint(1, 10)),
+    ],
+)
+def test_range_invalid_dim(shape: tuple) -> None:
+    """Test if the range function can properly handle and invalid dimension given"""
+    with pytest.raises(RuntimeError):
+        dim = random.randint(4, 10)
+        dtype = dtypes.s16
+
+        wrapper.range(shape, dim, dtype)