Revert "don't omit 1 in str"

Author: NoureldinYosri

test/cython/test_with_unit.py

@@ -541,9 +541,9 @@ def test_hash() -> None:
 def test_str() -> None:
     assert str(val(2, conv(3, 4, 5, 6), s, m)) == '2 m'
     assert str(val(2j, conv(3, 4, 5, 6), s)) == '2j s'
-    assert str(val(1, units=m, display_units=s)) == '1 s'
-    assert str(val(1, units=m)) == '1 m'
-    assert str(val(1, units=h)) == '1 s^3600'
+    assert str(val(1, units=m, display_units=s)) == 's'
+    assert str(val(1, units=m)) == 'm'
+    assert str(val(1, units=h)) == 's^3600'
     assert str(val([2, 3, 5], units=h, display_units=m)) == '[2 3 5] m'
     assert str(val([2, 3], units=h, display_units=mps)) == '[2 3] m/s'
 

test/test_unit_database.py

@@ -51,7 +51,7 @@ def test_get_unit_with_auto_create_override() -> None:
     db_manual = UnitDatabase(auto_create_units=False)
 
     u = db_auto.get_unit('missing')
-    assert str(u) == '1 missing'
+    assert str(u) == 'missing'
     with pytest.raises(KeyError):
         db_manual.get_unit('missing')
 
@@ -61,9 +61,9 @@ def test_get_unit_with_auto_create_override() -> None:
         db_manual.get_unit('gone', auto_create=False)
 
     u = db_auto.get_unit('empty', auto_create=True)
-    assert str(u) == '1 empty'
+    assert str(u) == 'empty'
     u = db_manual.get_unit('empty', auto_create=True)
-    assert str(u) == '1 empty'
+    assert str(u) == 'empty'
 
 
 def test_add_root_unit() -> None:

test/test_value.py

@@ -102,10 +102,10 @@ def test_repr() -> None:
 def test_str() -> None:
     from tunits.units import mm, meter, kilometer, rad, cyc
 
-    assert str(Value(1, mm)) == '1 mm'
+    assert str(Value(1, mm)) == 'mm'
     assert str(Value(4, mm)) == '4 mm'
     assert str(2 * meter * kilometer) == '2 km*m'
-    assert str(cyc) == '1 cyc'
+    assert str(cyc) == 'cyc'
     assert str(3.25 * cyc**2) == '3.25 cyc^2'
     assert str(3.25 * cyc * rad) == '3.25 cyc*rad'
     assert str((4 * kilometer) ** 0.5) == '2.0 km^(1/2)'

tunits/core/cython/with_unit.pyx

@@ -481,6 +481,9 @@ cdef class WithUnit:
 
     def __str__(self):
         unit_str = str(self.display_units)
+        if not isinstance(self.value, np.ndarray) \
+                and self.value == 1 and unit_str != '':
+            return unit_str
         val_str = (repr if isinstance(self.value, float) else str)(self.value)
         return (val_str + " " + unit_str).strip()