diff --git a/skimage/morphology/tests/test_binary.py b/skimage/morphology/tests/test_binary.py
index d52f92bb..6d8097b4 100644
--- a/skimage/morphology/tests/test_binary.py
+++ b/skimage/morphology/tests/test_binary.py
@@ -4,7 +4,6 @@ from numpy import testing
 from skimage import data, color
 from skimage.util import img_as_bool
 from skimage.morphology import binary, grey, selem
-from skimage._shared._warnings import expected_warnings
 from scipy import ndimage
 
 
@@ -15,50 +14,44 @@ bw_img = img > 100
 def test_non_square_image():
     strel = selem.square(3)
     binary_res = binary.binary_erosion(bw_img[:100, :200], strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.erosion(bw_img[:100, :200], strel))
+    grey_res = img_as_bool(grey.erosion(bw_img[:100, :200], strel))
     testing.assert_array_equal(binary_res, grey_res)
 
 
 def test_binary_erosion():
     strel = selem.square(3)
     binary_res = binary.binary_erosion(bw_img, strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.erosion(bw_img, strel))
+    grey_res = img_as_bool(grey.erosion(bw_img, strel))
     testing.assert_array_equal(binary_res, grey_res)
 
 
 def test_binary_dilation():
     strel = selem.square(3)
     binary_res = binary.binary_dilation(bw_img, strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.dilation(bw_img, strel))
+    grey_res = img_as_bool(grey.dilation(bw_img, strel))
     testing.assert_array_equal(binary_res, grey_res)
 
 
 def test_binary_closing():
     strel = selem.square(3)
     binary_res = binary.binary_closing(bw_img, strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.closing(bw_img, strel))
+    grey_res = img_as_bool(grey.closing(bw_img, strel))
     testing.assert_array_equal(binary_res, grey_res)
 
 
 def test_binary_opening():
     strel = selem.square(3)
     binary_res = binary.binary_opening(bw_img, strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.opening(bw_img, strel))
+    grey_res = img_as_bool(grey.opening(bw_img, strel))
     testing.assert_array_equal(binary_res, grey_res)
 
 
 def test_selem_overflow():
     strel = np.ones((17, 17), dtype=np.uint8)
-    img = np.zeros((20, 20))
-    img[2:19, 2:19] = 1
+    img = np.zeros((20, 20), dtype=bool)
+    img[2:19, 2:19] = True
     binary_res = binary.binary_erosion(img, strel)
-    with expected_warnings(['precision loss']):
-        grey_res = img_as_bool(grey.erosion(img, strel))
+    grey_res = img_as_bool(grey.erosion(img, strel))
     testing.assert_array_equal(binary_res, grey_res)