Lee Currency Converter Homework

currency_convert.py

@@ -0,0 +1,19 @@
+def get_rate(rates, orig_cur, new_cur):
+    """Pulls coversion rate between two currencys"""
+    for rate in rates:
+        if orig_cur in rate[0] and new_cur in rate[1]:
+            conv = round(rate[2],2)
+            return conv
+        elif orig_cur in rate[1] and new_cur in rate[0]:
+            conv = round(1 / rate[2],2)
+            return conv
+
+
+def convert(rates, value, orig_cur, new_cur):
+    """Convert value of one current into another"""
+    if orig_cur == new_cur:
+        return value
+    else:
+        rate = get_rate(rates, orig_cur, new_cur)
+        final = value * rate
+        return rate

test_currency.py

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+from currency_convert import *
+
+rates = [("USD", "EUR", .74), ("EUR", "JPY", 145.949)]
+
+def test_convert_match():
+    assert convert(rates, 1, "USD", "USD") == 1
+
+def test_convert_doleur():
+    assert convert(rates, 1, "USD", "EUR") == .74
+
+def test_convert_eurdol():
+    assert convert(rates, 1, "EUR", "USD") == 1.35
+
+def test_convertEURJPY():
+    assert convert(rates, 1, "EUR", "JPY") == 145.95
+
+def test_convertJPYEUR():
+    assert convert(rates, 1, "JPY", "EUR") == .01
+
+def test_rate_pull():
+    assert get_rate(rates, "USD", "EUR") == .74
+    assert get_rate(rates, "EUR", "USD") == 1.35
+    assert get_rate(rates, "JPY", "EUR") == .01
+    assert get_rate(rates, "EUR", "JPY") == 145.95