add a test for the ParsedQuantity(String) constructor

diff --git a/app/src/test/java/net/ktnx/mobileledger/json/ParsedQuantityTest.java b/app/src/test/java/net/ktnx/mobileledger/json/ParsedQuantityTest.java
new file mode 100644 (file)
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+++ b/app/src/test/java/net/ktnx/mobileledger/json/ParsedQuantityTest.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright © 2019 Damyan Ivanov.
+ * This file is part of MoLe.
+ * MoLe is free software: you can distribute it and/or modify it
+ * under the term of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your opinion), any later version.
+ *
+ * MoLe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License terms for details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.ktnx.mobileledger.json;
+
+import org.junit.Test;
+
+import static junit.framework.TestCase.assertEquals;
+
+public class ParsedQuantityTest {
+    @Test
+    public void fromString() {
+        ParsedQuantity pq = new ParsedQuantity("-22");
+        assertEquals(0, pq.getDecimalPlaces());
+        assertEquals( -22, pq.getDecimalMantissa());
+
+        pq = new ParsedQuantity("-123.45");
+        assertEquals( 2, pq.getDecimalPlaces());
+        assertEquals( -12345, pq.getDecimalMantissa());
+    }
+}
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