From e6af09b9829b8b559c1530cd9ea0c28a5860a9f4 Mon Sep 17 00:00:00 2001
From: Ingo Oppermann <ingo@datarhei.com>
Date: Tue, 1 Oct 2024 16:11:38 +0200
Subject: [PATCH] Add test for fs cleanup

---
 restream/core_test.go | 95 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/restream/core_test.go b/restream/core_test.go
index aad54bec..3d9e1a68 100644
--- a/restream/core_test.go
+++ b/restream/core_test.go
@@ -1,6 +1,7 @@
 package restream
 
 import (
+	"bytes"
 	"fmt"
 	"math/rand"
 	"os"
@@ -1614,3 +1615,97 @@ func BenchmarkGetProcessState(b *testing.B) {
 		rs.DeleteProcess(app.NewProcessID("test_"+strconv.Itoa(n), ""))
 	}
 }
+
+func TestProcessCleanup(t *testing.T) {
+	rsi, err := getDummyRestreamer(nil, nil, nil, nil)
+	require.NoError(t, err)
+
+	rsi.Start()
+
+	rs := rsi.(*restream)
+
+	memfs, ok := rs.fs.list[0].(fs.Filesystem)
+	require.True(t, ok)
+
+	for i := 0; i < 10; i++ {
+		memfs.WriteFileReader(fmt.Sprintf("/foobar_%02d.dat", i), bytes.NewReader([]byte("hello")), -1)
+	}
+
+	files := memfs.List("/", fs.ListOptions{
+		Pattern: "/foobar_*",
+	})
+	require.Equal(t, 10, len(files))
+
+	process := getDummyProcess()
+	process.ID = "foobar"
+	output := process.Output[0]
+	output.Cleanup = append(output.Cleanup, app.ConfigIOCleanup{
+		Pattern:       "mem:/{processid}_*",
+		MaxFiles:      5,
+		MaxFileAge:    0,
+		PurgeOnDelete: true,
+	})
+	process.Output[0] = output
+
+	err = rsi.AddProcess(process)
+	require.NoError(t, err)
+
+	require.Eventually(t, func() bool {
+		files := memfs.List("/", fs.ListOptions{
+			Pattern: "/foobar_*",
+		})
+
+		return len(files) == 5
+	}, 15*time.Second, time.Second)
+
+	rsi.Stop()
+
+	for i := 0; i < 10; i++ {
+		memfs.WriteFileReader(fmt.Sprintf("/foobar_%02d.dat", i), bytes.NewReader([]byte("hello")), -1)
+	}
+
+	files = memfs.List("/", fs.ListOptions{
+		Pattern: "/foobar_*",
+	})
+	require.Equal(t, 10, len(files))
+
+	rsi.ReloadProcess(app.ProcessID{ID: process.ID})
+
+	rsi.Start()
+
+	require.Eventually(t, func() bool {
+		files := memfs.List("/", fs.ListOptions{
+			Pattern: "/foobar_*",
+		})
+
+		return len(files) == 5
+	}, 15*time.Second, time.Second)
+
+	rsi.Stop()
+
+	for i := 0; i < 10; i++ {
+		memfs.WriteFileReader(fmt.Sprintf("/foobar_%02d.dat", i), bytes.NewReader([]byte("hello")), -1)
+	}
+
+	files = memfs.List("/", fs.ListOptions{
+		Pattern: "/foobar_*",
+	})
+	require.Equal(t, 10, len(files))
+
+	process.Reference = "foobar"
+	rsi.UpdateProcess(app.ProcessID{ID: process.ID}, process)
+
+	rsi.Start()
+
+	require.Eventually(t, func() bool {
+		files := memfs.List("/", fs.ListOptions{
+			Pattern: "/foobar_*",
+		})
+
+		return len(files) == 5
+	}, 15*time.Second, time.Second)
+
+	rsi.Stop()
+
+	//task, ok := rs.tasks.Load(app.ProcessID{ID: process.ID})
+}