From 8bceb8e3592d315436739ccc3facce42c48e6ae5 Mon Sep 17 00:00:00 2001
From: Michael Eischer <michael.eischer@fau.de>
Date: Sun, 1 Oct 2023 15:45:08 +0200
Subject: [PATCH] fs: add tests for CommandReader

---
 internal/fs/fs_reader_command_test.go | 48 +++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 internal/fs/fs_reader_command_test.go

diff --git a/internal/fs/fs_reader_command_test.go b/internal/fs/fs_reader_command_test.go
new file mode 100644
index 000000000..a9028544c
--- /dev/null
+++ b/internal/fs/fs_reader_command_test.go
@@ -0,0 +1,48 @@
+package fs_test
+
+import (
+	"bytes"
+	"context"
+	"io"
+	"strings"
+	"testing"
+
+	"github.com/restic/restic/internal/fs"
+	"github.com/restic/restic/internal/test"
+)
+
+func TestCommandReaderSuccess(t *testing.T) {
+	reader, err := fs.NewCommandReader(context.TODO(), []string{"true"}, io.Discard)
+	test.OK(t, err)
+
+	_, err = io.Copy(io.Discard, reader)
+	test.OK(t, err)
+
+	test.OK(t, reader.Close())
+}
+
+func TestCommandReaderFail(t *testing.T) {
+	reader, err := fs.NewCommandReader(context.TODO(), []string{"false"}, io.Discard)
+	test.OK(t, err)
+
+	_, err = io.Copy(io.Discard, reader)
+	test.Assert(t, err != nil, "missing error")
+}
+
+func TestCommandReaderInvalid(t *testing.T) {
+	_, err := fs.NewCommandReader(context.TODO(), []string{"w54fy098hj7fy5twijouytfrj098y645wr"}, io.Discard)
+	test.Assert(t, err != nil, "missing error")
+}
+
+func TestCommandReaderOutput(t *testing.T) {
+	reader, err := fs.NewCommandReader(context.TODO(), []string{"echo", "hello world"}, io.Discard)
+	test.OK(t, err)
+
+	var buf bytes.Buffer
+
+	_, err = io.Copy(&buf, reader)
+	test.OK(t, err)
+	test.OK(t, reader.Close())
+
+	test.Equals(t, "hello world", strings.TrimSpace(buf.String()))
+}