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feat: add hello command #27

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feat: add hello command #27

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e812e3a
feat: add hello command that prints hello world
baiirun Mar 16, 2026
3dffa82
chore: add test cleanup for helloCmd output buffer
baiirun Mar 16, 2026
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19 changes: 19 additions & 0 deletions cmd/af/cmd/hello.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
package cmd

import (
"fmt"

"github.com/spf13/cobra"
)

var helloCmd = &cobra.Command{
Use: "hello",
Short: "Print a greeting",
Run: func(cmd *cobra.Command, args []string) {
fmt.Fprintln(cmd.OutOrStdout(), "hello world")

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},
}

func init() {
rootCmd.AddCommand(helloCmd)
}
20 changes: 20 additions & 0 deletions cmd/af/cmd/hello_test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,20 @@
package cmd

import (
"bytes"
"testing"
)

func TestHelloCmdPrintsHelloWorld(t *testing.T) {
var buf bytes.Buffer
helloCmd.SetOut(&buf)
t.Cleanup(func() { helloCmd.SetOut(nil) })

helloCmd.Run(helloCmd, nil)

got := buf.String()
want := "hello world\n"
if got != want {
t.Fatalf("hello output = %q, want %q", got, want)
}
}
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