From 156eb43edad1b7ab1ed32f8a35beef3fa656770c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gro=C3=9F?=
 <christoph.gross@student.uni-tuebingen.de>
Date: Mon, 28 May 2018 14:48:45 +0200
Subject: [PATCH] Added simple test case for command addresses, so no
 regression should happen.

---
 src/epd4in2/command.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/epd4in2/command.rs b/src/epd4in2/command.rs
index c82d930..c81bd79 100644
--- a/src/epd4in2/command.rs
+++ b/src/epd4in2/command.rs
@@ -151,4 +151,19 @@ impl Command {
 	pub fn addr(self) -> u8 {
 	    self as u8
 	}
+}
+
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn command_addr() {
+		assert_eq!(Command::POWER_SAVING.addr(), 0xE3);
+
+		assert_eq!(Command::PANEL_SETTING.addr(), 0x00);
+
+		assert_eq!(Command::DISPLAY_REFRESH.addr(), 0x12);        
+    }
 }
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