From 2cddb4d2b9b7912299bd2ac4376b3546ff0dfcdb Mon Sep 17 00:00:00 2001
From: Maksim An <maksiman@microsoft.com>
Date: Wed, 6 Apr 2022 01:36:15 -0700
Subject: [PATCH] Add unit tests for mirrorBytes.

Signed-off-by: Maksim An <maksiman@microsoft.com>
---
 internal/guest/amdsev/report_test.go | 53 ++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 internal/guest/amdsev/report_test.go

diff --git a/internal/guest/amdsev/report_test.go b/internal/guest/amdsev/report_test.go
new file mode 100644
index 0000000000..2f233031c1
--- /dev/null
+++ b/internal/guest/amdsev/report_test.go
@@ -0,0 +1,53 @@
+//go:build linux
+// +build linux
+
+package amdsev
+
+import (
+	"testing"
+)
+
+func Test_Mirror_NonEmpty_Byte_Slices(t *testing.T) {
+	type config struct {
+		name     string
+		input    []byte
+		expected []byte
+	}
+
+	for _, conf := range []config{
+		{
+			name:     "Length0",
+			input:    []byte{},
+			expected: []byte{},
+		},
+		{
+			name:     "Length1",
+			input:    []byte{100},
+			expected: []byte{100},
+		},
+		{
+			name:     "LengthOdd",
+			input:    []byte{100, 101, 102, 103, 104},
+			expected: []byte{104, 103, 102, 101, 100},
+		},
+		{
+			name:     "LengthEven",
+			input:    []byte{100, 101, 102, 103, 104, 105},
+			expected: []byte{105, 104, 103, 102, 101, 100},
+		},
+	} {
+		t.Run(conf.name, func(t *testing.T) {
+			result := mirrorBytes(conf.input)
+			if string(result[:]) != string(conf.expected[:]) {
+				t.Fatalf("the ipnut byte array %+v was not mirrored; %+v", conf.input, result)
+			}
+		})
+	}
+}
+
+func Test_Mirror_Nil_Slice(t *testing.T) {
+	result := mirrorBytes(nil)
+	if result != nil {
+		t.Fatalf("expected nil slice, got: %+v", result)
+	}
+}