test(process): add concurrency tests and global function wrappers

Address code review findings:

- Add global wrappers: StartWithOptions, RunWithOptions, Running
- Add global_test.go with concurrent access tests for Default(),
  SetDefault(), and concurrent operations
- Add process_test.go with dedicated Process struct method tests
- All tests pass with race detector

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Snider 2026-01-30 19:55:37 +00:00
parent 41270b2904
commit c145d64891
4 changed files with 552 additions and 13 deletions

298
pkg/process/global_test.go Normal file
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@ -0,0 +1,298 @@
package process
import (
"context"
"sync"
"testing"
"github.com/host-uk/core/pkg/framework"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestGlobal_DefaultNotInitialized(t *testing.T) {
// Reset global state for this test
old := defaultService.Swap(nil)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
assert.Nil(t, Default())
_, err := Start(context.Background(), "echo", "test")
assert.ErrorIs(t, err, ErrServiceNotInitialized)
_, err = Run(context.Background(), "echo", "test")
assert.ErrorIs(t, err, ErrServiceNotInitialized)
_, err = Get("proc-1")
assert.ErrorIs(t, err, ErrServiceNotInitialized)
assert.Nil(t, List())
assert.Nil(t, Running())
err = Kill("proc-1")
assert.ErrorIs(t, err, ErrServiceNotInitialized)
_, err = StartWithOptions(context.Background(), RunOptions{Command: "echo"})
assert.ErrorIs(t, err, ErrServiceNotInitialized)
_, err = RunWithOptions(context.Background(), RunOptions{Command: "echo"})
assert.ErrorIs(t, err, ErrServiceNotInitialized)
}
func TestGlobal_SetDefault(t *testing.T) {
t.Run("sets and retrieves service", func(t *testing.T) {
// Reset global state
old := defaultService.Swap(nil)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
core, err := framework.New(
framework.WithName("process", NewService(Options{})),
)
require.NoError(t, err)
svc, err := framework.ServiceFor[*Service](core, "process")
require.NoError(t, err)
SetDefault(svc)
assert.Equal(t, svc, Default())
})
t.Run("panics on nil", func(t *testing.T) {
assert.Panics(t, func() {
SetDefault(nil)
})
})
}
func TestGlobal_ConcurrentDefault(t *testing.T) {
// Reset global state
old := defaultService.Swap(nil)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
core, err := framework.New(
framework.WithName("process", NewService(Options{})),
)
require.NoError(t, err)
svc, err := framework.ServiceFor[*Service](core, "process")
require.NoError(t, err)
SetDefault(svc)
// Concurrent reads of Default()
var wg sync.WaitGroup
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
s := Default()
assert.NotNil(t, s)
assert.Equal(t, svc, s)
}()
}
wg.Wait()
}
func TestGlobal_ConcurrentSetDefault(t *testing.T) {
// Reset global state
old := defaultService.Swap(nil)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
// Create multiple services
var services []*Service
for i := 0; i < 10; i++ {
core, err := framework.New(
framework.WithName("process", NewService(Options{})),
)
require.NoError(t, err)
svc, err := framework.ServiceFor[*Service](core, "process")
require.NoError(t, err)
services = append(services, svc)
}
// Concurrent SetDefault calls - should not panic or race
var wg sync.WaitGroup
for _, svc := range services {
wg.Add(1)
go func(s *Service) {
defer wg.Done()
SetDefault(s)
}(svc)
}
wg.Wait()
// Final state should be one of the services
final := Default()
assert.NotNil(t, final)
found := false
for _, svc := range services {
if svc == final {
found = true
break
}
}
assert.True(t, found, "Default should be one of the set services")
}
func TestGlobal_ConcurrentOperations(t *testing.T) {
// Reset global state
old := defaultService.Swap(nil)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
core, err := framework.New(
framework.WithName("process", NewService(Options{})),
)
require.NoError(t, err)
svc, err := framework.ServiceFor[*Service](core, "process")
require.NoError(t, err)
SetDefault(svc)
// Concurrent Start, List, Get operations
var wg sync.WaitGroup
var processes []*Process
var procMu sync.Mutex
// Start 20 processes concurrently
for i := 0; i < 20; i++ {
wg.Add(1)
go func() {
defer wg.Done()
proc, err := Start(context.Background(), "echo", "concurrent")
if err == nil {
procMu.Lock()
processes = append(processes, proc)
procMu.Unlock()
}
}()
}
// Concurrent List calls while starting
for i := 0; i < 10; i++ {
wg.Add(1)
go func() {
defer wg.Done()
_ = List()
_ = Running()
}()
}
wg.Wait()
// Wait for all processes to complete
procMu.Lock()
for _, p := range processes {
<-p.Done()
}
procMu.Unlock()
// All should have succeeded
assert.Len(t, processes, 20)
// Concurrent Get calls
var wg2 sync.WaitGroup
for _, p := range processes {
wg2.Add(1)
go func(id string) {
defer wg2.Done()
got, err := Get(id)
assert.NoError(t, err)
assert.NotNil(t, got)
}(p.ID)
}
wg2.Wait()
}
func TestGlobal_StartWithOptions(t *testing.T) {
svc, _ := newTestService(t)
// Set as default
old := defaultService.Swap(svc)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
proc, err := StartWithOptions(context.Background(), RunOptions{
Command: "echo",
Args: []string{"with", "options"},
})
require.NoError(t, err)
<-proc.Done()
assert.Equal(t, 0, proc.ExitCode)
assert.Contains(t, proc.Output(), "with options")
}
func TestGlobal_RunWithOptions(t *testing.T) {
svc, _ := newTestService(t)
// Set as default
old := defaultService.Swap(svc)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
output, err := RunWithOptions(context.Background(), RunOptions{
Command: "echo",
Args: []string{"run", "options"},
})
require.NoError(t, err)
assert.Contains(t, output, "run options")
}
func TestGlobal_Running(t *testing.T) {
svc, _ := newTestService(t)
// Set as default
old := defaultService.Swap(svc)
defer func() {
if old != nil {
defaultService.Store(old)
}
}()
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
// Start a long-running process
proc, err := Start(ctx, "sleep", "60")
require.NoError(t, err)
running := Running()
assert.Len(t, running, 1)
assert.Equal(t, proc.ID, running[0].ID)
cancel()
<-proc.Done()
running = Running()
assert.Len(t, running, 0)
}

View file

@ -92,6 +92,33 @@ func Kill(id string) error {
return svc.Kill(id)
}
// StartWithOptions spawns a process with full configuration using the default service.
func StartWithOptions(ctx context.Context, opts RunOptions) (*Process, error) {
svc := Default()
if svc == nil {
return nil, ErrServiceNotInitialized
}
return svc.StartWithOptions(ctx, opts)
}
// RunWithOptions executes a command with options and waits using the default service.
func RunWithOptions(ctx context.Context, opts RunOptions) (string, error) {
svc := Default()
if svc == nil {
return "", ErrServiceNotInitialized
}
return svc.RunWithOptions(ctx, opts)
}
// Running returns all currently running processes from the default service.
func Running() []*Process {
svc := Default()
if svc == nil {
return nil
}
return svc.Running()
}
// ErrServiceNotInitialized is returned when the service is not initialized.
var ErrServiceNotInitialized = &ServiceError{msg: "process: service not initialized"}

227
pkg/process/process_test.go Normal file
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@ -0,0 +1,227 @@
package process
import (
"context"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestProcess_Info(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "hello")
require.NoError(t, err)
<-proc.Done()
info := proc.Info()
assert.Equal(t, proc.ID, info.ID)
assert.Equal(t, "echo", info.Command)
assert.Equal(t, []string{"hello"}, info.Args)
assert.Equal(t, StatusExited, info.Status)
assert.Equal(t, 0, info.ExitCode)
assert.Greater(t, info.Duration, time.Duration(0))
}
func TestProcess_Output(t *testing.T) {
t.Run("captures stdout", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "hello world")
require.NoError(t, err)
<-proc.Done()
output := proc.Output()
assert.Contains(t, output, "hello world")
})
t.Run("OutputBytes returns copy", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "test")
require.NoError(t, err)
<-proc.Done()
bytes := proc.OutputBytes()
assert.NotNil(t, bytes)
assert.Contains(t, string(bytes), "test")
})
}
func TestProcess_IsRunning(t *testing.T) {
t.Run("true while running", func(t *testing.T) {
svc, _ := newTestService(t)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
proc, err := svc.Start(ctx, "sleep", "10")
require.NoError(t, err)
assert.True(t, proc.IsRunning())
cancel()
<-proc.Done()
assert.False(t, proc.IsRunning())
})
t.Run("false after completion", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "done")
require.NoError(t, err)
<-proc.Done()
assert.False(t, proc.IsRunning())
})
}
func TestProcess_Wait(t *testing.T) {
t.Run("returns nil on success", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "ok")
require.NoError(t, err)
err = proc.Wait()
assert.NoError(t, err)
})
t.Run("returns error on failure", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "sh", "-c", "exit 1")
require.NoError(t, err)
err = proc.Wait()
assert.Error(t, err)
})
}
func TestProcess_Done(t *testing.T) {
t.Run("channel closes on completion", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "test")
require.NoError(t, err)
select {
case <-proc.Done():
// Success - channel closed
case <-time.After(5 * time.Second):
t.Fatal("Done channel should have closed")
}
})
}
func TestProcess_Kill(t *testing.T) {
t.Run("terminates running process", func(t *testing.T) {
svc, _ := newTestService(t)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
proc, err := svc.Start(ctx, "sleep", "60")
require.NoError(t, err)
assert.True(t, proc.IsRunning())
err = proc.Kill()
assert.NoError(t, err)
select {
case <-proc.Done():
// Good - process terminated
case <-time.After(2 * time.Second):
t.Fatal("process should have been killed")
}
})
t.Run("noop on completed process", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "done")
require.NoError(t, err)
<-proc.Done()
err = proc.Kill()
assert.NoError(t, err)
})
}
func TestProcess_SendInput(t *testing.T) {
t.Run("writes to stdin", func(t *testing.T) {
svc, _ := newTestService(t)
// Use cat to echo back stdin
proc, err := svc.Start(context.Background(), "cat")
require.NoError(t, err)
err = proc.SendInput("hello\n")
assert.NoError(t, err)
err = proc.CloseStdin()
assert.NoError(t, err)
<-proc.Done()
assert.Contains(t, proc.Output(), "hello")
})
t.Run("error on completed process", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "echo", "done")
require.NoError(t, err)
<-proc.Done()
err = proc.SendInput("test")
assert.ErrorIs(t, err, ErrProcessNotRunning)
})
}
func TestProcess_CloseStdin(t *testing.T) {
t.Run("closes stdin pipe", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "cat")
require.NoError(t, err)
err = proc.CloseStdin()
assert.NoError(t, err)
// Process should exit now that stdin is closed
select {
case <-proc.Done():
// Good
case <-time.After(2 * time.Second):
t.Fatal("cat should exit when stdin is closed")
}
})
t.Run("double close is safe", func(t *testing.T) {
svc, _ := newTestService(t)
proc, err := svc.Start(context.Background(), "cat")
require.NoError(t, err)
// First close
err = proc.CloseStdin()
assert.NoError(t, err)
<-proc.Done()
// Second close should be safe (stdin already nil)
err = proc.CloseStdin()
assert.NoError(t, err)
})
}

View file

@ -256,16 +256,3 @@ func TestService_Clear(t *testing.T) {
})
}
func TestProcess_Info(t *testing.T) {
svc, _ := newTestService(t)
proc, _ := svc.Start(context.Background(), "echo", "hello")
<-proc.Done()
info := proc.Info()
assert.Equal(t, proc.ID, info.ID)
assert.Equal(t, "echo", info.Command)
assert.Equal(t, []string{"hello"}, info.Args)
assert.Equal(t, StatusExited, info.Status)
assert.Equal(t, 0, info.ExitCode)
}