From 0b8c840f11dc1b9bfd64692958ddb8ddb9dbec0c Mon Sep 17 00:00:00 2001
From: Yuki <yuki@alienyuki.com>
Date: Sat, 14 Jun 2025 00:01:56 +0800
Subject: [PATCH] feat: Add SayHello.

Add SayHello function for test.
---
 go.mod        |  3 +++
 hello.go      |  5 +++++
 hello_test.go | 12 ++++++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 go.mod
 create mode 100644 hello.go
 create mode 100644 hello_test.go

diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..0e70688
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module hellogomod
+
+go 1.24.4
diff --git a/hello.go b/hello.go
new file mode 100644
index 0000000..858b457
--- /dev/null
+++ b/hello.go
@@ -0,0 +1,5 @@
+package hellogomod
+
+func SayHello(name string) string {
+	return "Hello, " + name + "!"
+}
diff --git a/hello_test.go b/hello_test.go
new file mode 100644
index 0000000..9ece53b
--- /dev/null
+++ b/hello_test.go
@@ -0,0 +1,12 @@
+package hellogomod
+
+import "testing"
+
+func TestSayHello(t *testing.T) {
+	s := SayHello("yuki")
+	want := "Hello, yuki!"
+
+	if s != want {
+		t.Errorf("return %s, want %s", s, want)
+	}
+}