From 136ab8c19902e1b41915dabb23e36945e5b6e394 Mon Sep 17 00:00:00 2001
From: Romain Vimont <rom@rom1v.com>
Date: Wed, 3 Aug 2022 14:55:35 +0200
Subject: [PATCH] Add unit test for float decoding

PR #3369 <https://github.com/Genymobile/scrcpy/pull/3369>
---
 .../com/genymobile/scrcpy/BinaryTest.java     | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 server/src/test/java/com/genymobile/scrcpy/BinaryTest.java

diff --git a/server/src/test/java/com/genymobile/scrcpy/BinaryTest.java b/server/src/test/java/com/genymobile/scrcpy/BinaryTest.java
new file mode 100644
index 00000000..b2d3d72d
--- /dev/null
+++ b/server/src/test/java/com/genymobile/scrcpy/BinaryTest.java
@@ -0,0 +1,20 @@
+package com.genymobile.scrcpy;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class BinaryTest {
+
+    @Test
+    public void testU16FixedPointToFloat() {
+        final float delta = 0.0f; // on these values, there MUST be no rounding error
+        Assert.assertEquals(0.0f, Binary.u16FixedPointToFloat((short) 0), delta);
+        Assert.assertEquals(0.03125f, Binary.u16FixedPointToFloat((short) 0x800), delta);
+        Assert.assertEquals(0.0625f, Binary.u16FixedPointToFloat((short) 0x1000), delta);
+        Assert.assertEquals(0.125f, Binary.u16FixedPointToFloat((short) 0x2000), delta);
+        Assert.assertEquals(0.25f, Binary.u16FixedPointToFloat((short) 0x4000), delta);
+        Assert.assertEquals(0.5f, Binary.u16FixedPointToFloat((short) 0x8000), delta);
+        Assert.assertEquals(0.75f, Binary.u16FixedPointToFloat((short) 0xc000), delta);
+        Assert.assertEquals(1.0f, Binary.u16FixedPointToFloat((short) 0xffff), delta);
+    }
+}