1 files changed, 45 insertions, 0 deletions
diff --git a/test/test_EeVal.py b/test/test_EeVal.py
index b96e089..6e15ff0 100644
--- a/test/test_EeVal.py
+++ b/test/test_EeVal.py
@@ -1,5 +1,50 @@
+import pytest
 from ee import EeVal
 
+@pytest.mark.parametrize("s, num_value, str_value, unit", [
+    ("0", 0, "0", None),
+    ("0 k", 0, "0", None),
+    ("1", 1, "1", None),
+    ("10", 10, "10", None),
+    ("10k", 10 * 1000, "10 k", None),
+    ("10 k", 10 * 1000, "10 k", None),
+    ("10  k",  10 * 1000, "10 k", None),
+    ("1000 m", 1, "1", None),
+    ("100 m", 0.1, "100 m", None),
+    ("100 n", 0.0000001, "100 n", None),
+    ("1 m", 0.001, "1 m", None),
+    ("1 u", 0.000001, "1 u", None),
+    ("0.1 u", 0.0000001, "100 n", None),
+    (".1 u", 0.0000001, "100 n", None),
+    ("4.7 u", 0.0000047, "4.7 u", None),
+    ("1 µ", 0.000001, "1 u", None),
+    ("1 n", 0.000000001, "1 n", None),
+    ("10 n", 0.00000001, "10 n", None),
+    ("1p", 1e-12, "1 p", None),
+    ("0.8p", 8e-13, "0.8 p", None),
+    ("0.008p", 8e-15, "0.008 p", None),
+  ])
+def test_basic(s, num_value, str_value, unit):
+    num_value = float(num_value)
+    v = EeVal(s)
+    assert float(v) == v.value
+    epsilon = num_value * 0.01
+    assert (num_value + epsilon) >= float(v) and (num_value - epsilon) <= float(v)
+    assert str_value == str(v)
+    assert unit == v.unit
+
+@pytest.mark.parametrize("s, str_value, unit", [
+    ("10nF", "10 nF", "F"),
+    ("10n F", "10 nF", "F"),
+    ("10 n F", "10 nF", "F"),
+    ("4.7 n F", "4.7 nF", "F"),
+  ])
+def test_units(s, str_value, unit):
+    v = EeVal(s)
+    assert unit == v.unit
+    assert float(v) == v.value
+    assert str_value == str(v)
+
 def test_ordering():
     p100 = EeVal('100 p')
     n100 = EeVal('100 n')