1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/java/de/hysky/skyblocker/utils/CalculatorTest.java b/src/test/java/de/hysky/skyblocker/utils/CalculatorTest.java
new file mode 100644
index 00000000..c29efdf2
--- /dev/null
+++ b/src/test/java/de/hysky/skyblocker/utils/CalculatorTest.java
@@ -0,0 +1,31 @@
+package de.hysky.skyblocker.utils;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class CalculatorTest {
+    @Test
+    void testShorthands() {
+        Assertions.assertEquals(Calculator.calculate("1k"), 1000);
+        Assertions.assertEquals(Calculator.calculate("0.12k"), 120);
+        Assertions.assertEquals(Calculator.calculate("1k + 0.12k"), 1120);
+        Assertions.assertEquals(Calculator.calculate("1 + 1s + 1k + 1m + 1b"), 1001001065);
+    }
+
+    @Test
+    void testPrecedence() {
+        Assertions.assertEquals(Calculator.calculate("5 + 2 * 2"), 9);
+        Assertions.assertEquals(Calculator.calculate("5 - 2 / 2"), 4);
+        Assertions.assertEquals(Calculator.calculate("5 * (1 + 2)"), 15);
+    }
+
+    @Test
+    void testImplicitMultiplication() {
+        Assertions.assertEquals(Calculator.calculate("5(2 + 2)"), 20);
+    }
+
+    @Test
+    void testImplicitClosingParenthesis() {
+        Assertions.assertEquals(Calculator.calculate("5(2 + 2"), 20);
+    }
+}