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extism_test.go
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extism_test.go
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package extism
import (
"bytes"
"context"
"encoding/json"
"fmt"
observe "github.com/dylibso/observe-sdk/go"
"github.com/dylibso/observe-sdk/go/adapter/stdout"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/experimental"
"github.com/tetratelabs/wazero/experimental/logging"
"github.com/tetratelabs/wazero/sys"
"log"
"os"
"strings"
"sync"
"testing"
"time"
)
func TestWasmUrl(t *testing.T) {
url := "https://raw.githubusercontent.com/extism/extism/main/wasm/code.wasm"
wasm := WasmUrl{
Url: url,
Name: "code",
Hash: "0c1779c48f56f94b3e3624d76f55e38215870c59ccb3d41f6ba8b2bc22f218f5",
}
manifest := Manifest{
Wasm: []Wasm{wasm},
Config: make(map[string]string),
AllowedHosts: []string{},
AllowedPaths: make(map[string]string),
}
_, ok := pluginInstance(t, manifest)
assert.True(t, ok, "Plugin must be succussfuly created")
}
func TestHashMismatch(t *testing.T) {
wasm := WasmFile{
Path: "wasm/alloc.wasm",
Name: "code",
Hash: "------",
}
manifest := Manifest{
Wasm: []Wasm{wasm},
Config: make(map[string]string),
AllowedHosts: []string{},
AllowedPaths: make(map[string]string),
}
ctx := context.Background()
//config := wasiPluginConfig()
_, err := NewCompiledPlugin(ctx, manifest, PluginConfig{
EnableWasi: true,
}, nil)
assert.NotNil(t, err, "Plugin must fail")
}
func TestFunctionExsits(t *testing.T) {
manifest := manifest("alloc.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
assert.True(t, plugin.FunctionExists("run_test"))
assert.False(t, plugin.FunctionExists("i_dont_exist"))
}
}
func TestFailOnUnknownFunction(t *testing.T) {
manifest := manifest("alloc.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
_, _, err := plugin.Call("i_dont_exist", []byte{})
assert.NotNil(t, err, "Call to unknwon function must fail")
}
}
func TestCallFunction(t *testing.T) {
manifest := manifest("count_vowels.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
cases := map[string]int{
"hello world": 3,
"aaaaaa": 6,
"": 0,
"bbbbbbb": 0,
}
for input, expected := range cases {
exit, output, err := plugin.Call("count_vowels", []byte(input))
if assertCall(t, err, exit) {
var actual map[string]int
json.Unmarshal(output, &actual)
assert.Equal(t, expected, actual["count"], "'%s' contains %v vowels", input, expected)
}
}
}
}
func TestCallFunctionMultipleInstances(t *testing.T) {
ctx := context.Background()
manifest := manifest("alloc.wasm")
plugin := plugin(t, manifest)
var wg sync.WaitGroup
for i := 0; i < 100; i++ {
wg.Add(1)
go func() {
defer wg.Done()
instance, err := plugin.Instance(ctx, PluginInstanceConfig{})
require.NoError(t, err)
defer func() {
require.NoError(t, instance.Close(ctx))
}()
exit, _, err := instance.Call("run_test", []byte{})
assertCall(t, err, exit)
}()
}
wg.Wait()
}
func TestClosePlugin(t *testing.T) {
manifest := manifest("alloc.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
exit, _, err := plugin.Call("run_test", []byte{})
assertCall(t, err, exit)
err = plugin.Close(context.Background())
if err != nil {
t.Errorf("Close must not return an error: %v", err)
}
_, _, err = plugin.Call("run_test", []byte{})
assert.NotNil(t, err, "Call must fail after plugin was closed")
}
}
func TestAlloc(t *testing.T) {
manifest := manifest("alloc.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, _, err := plugin.Call("run_test", []byte{})
assertCall(t, err, exit)
}
}
func TestConfig(t *testing.T) {
params := map[string]string{
"hello": `{"config": "hello"}`,
"": `{"config": "<unset by host>"}`,
}
for k, v := range params {
manifest := manifest("config.wasm")
if k != "" {
manifest.Config["thing"] = k
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := v
assert.Equal(t, expected, actual)
}
}
}
}
func TestFail(t *testing.T) {
manifest := manifest("fail.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, _, err := plugin.Call("run_test", []byte{})
assert.Equal(t, uint32(1), exit, "Exit code must be 1")
assert.Equal(t, "Some error message", err.Error())
}
}
func TestHello(t *testing.T) {
manifest := manifest("hello.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := "Hello, world!"
assert.Equal(t, expected, actual)
}
}
}
func TestExit(t *testing.T) {
cases := map[string]uint32{
"-1": 0xffffffff, // NOTE: wazero doesn't support negative exit codes
"500": 500,
"abc": 1,
"": 2,
}
for config, expected := range cases {
manifest := manifest("exit.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
if config != "" {
plugin.Config["code"] = config
}
actual, _, err := plugin.Call("_start", []byte{})
if actual != 0 {
assert.NotNil(t, err, fmt.Sprintf("err can't be nil. config: %v", config))
}
assert.Equal(t, expected, actual, fmt.Sprintf("exit must be %v. config: '%v'", expected, config))
}
}
}
func TestHost_simple(t *testing.T) {
manifest := manifest("host.wasm")
mult := NewHostFunctionWithStack(
"mult",
func(ctx context.Context, plugin *CurrentPlugin, stack []uint64) {
a := DecodeI32(stack[0])
b := DecodeI32(stack[1])
stack[0] = EncodeI32(a * b)
},
[]ValueType{ValueTypePTR, ValueTypePTR},
[]ValueType{ValueTypePTR},
)
if plugin, ok := pluginInstance(t, manifest, mult); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := "42 x 2 = 84"
assert.Equal(t, expected, actual)
}
}
}
func TestHost_memory(t *testing.T) {
manifest := manifest("host_memory.wasm")
mult := NewHostFunctionWithStack(
"to_upper",
func(ctx context.Context, plugin *CurrentPlugin, stack []uint64) {
offset := stack[0]
buffer, err := plugin.ReadBytes(offset)
if err != nil {
panic(err)
}
result := bytes.ToUpper(buffer)
plugin.Logf(LogLevelDebug, "Result: %s", result)
plugin.Free(offset)
offset, err = plugin.WriteBytes(result)
if err != nil {
panic(err)
}
stack[0] = offset
},
[]ValueType{ValueTypePTR},
[]ValueType{ValueTypePTR},
)
mult.SetNamespace("host")
if plugin, ok := pluginInstance(t, manifest, mult); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte("Frodo"))
if assertCall(t, err, exit) {
actual := string(output)
expected := "HELLO FRODO!"
assert.Equal(t, expected, actual)
}
}
}
func TestHost_multiple(t *testing.T) {
manifest := manifest("host_multiple.wasm")
green_message := NewHostFunctionWithStack(
"hostGreenMessage",
func(ctx context.Context, plugin *CurrentPlugin, stack []uint64) {
offset := stack[0]
input, err := plugin.ReadString(offset)
if err != nil {
fmt.Println("🥵", err.Error())
panic(err)
}
message := "🟢:" + string(input)
offset, err = plugin.WriteString(message)
if err != nil {
fmt.Println("🥵", err.Error())
panic(err)
}
stack[0] = offset
},
[]ValueType{ValueTypePTR},
[]ValueType{ValueTypePTR},
)
purple_message := NewHostFunctionWithStack(
"hostPurpleMessage",
func(ctx context.Context, plugin *CurrentPlugin, stack []uint64) {
offset := stack[0]
input, err := plugin.ReadString(offset)
if err != nil {
fmt.Println("🥵", err.Error())
panic(err)
}
message := "🟣:" + string(input)
offset, err = plugin.WriteString(message)
if err != nil {
fmt.Println("🥵", err.Error())
panic(err)
}
stack[0] = offset
},
[]ValueType{ValueTypePTR},
[]ValueType{ValueTypePTR},
)
hostFunctions := []HostFunction{
purple_message,
green_message,
}
ctx := context.Background()
p, err := NewCompiledPlugin(ctx, manifest, PluginConfig{
EnableWasi: true,
}, hostFunctions)
if err != nil {
panic(err)
}
pluginInst, err := p.Instance(ctx, PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
if err != nil {
panic(err)
}
_, res, err := pluginInst.Call(
"say_green",
[]byte("John Doe"),
)
assert.Equal(t, "🟢:🫱 Hey from say_green John Doe", string(res))
_, res, err = pluginInst.Call(
"say_purple",
[]byte("Jane Doe"),
)
assert.Equal(t, "🟣:👋 Hello from say_purple Jane Doe", string(res))
}
func TestHTTP_allowed(t *testing.T) {
manifest := manifest("http.wasm")
manifest.AllowedHosts = []string{"jsonplaceholder.*.com"}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := `
{
"userId": 1,
"id": 1,
"title": "delectus aut autem",
"completed": false
}`
assert.JSONEq(t, expected, actual)
}
}
}
func TestHTTP_denied(t *testing.T) {
allowed := []string{
"", // If no allowed hosts are defined, then all requests are denied
"google.*"}
for _, url := range allowed {
manifest := manifest("http.wasm")
if url != "" {
manifest.AllowedHosts = []string{url}
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, _, err := plugin.Call("run_test", []byte{})
assert.Equal(t, uint32(1), exit, "HTTP Request must fail")
assert.Contains(t, err.Error(), "HTTP request to 'https://jsonplaceholder.typicode.com/todos/1' is not allowed")
}
}
}
func TestHTTPHeaders_allowed(t *testing.T) {
manifest := manifest("http_headers.wasm")
manifest.AllowedHosts = []string{"extism.org"}
if plugin, ok := pluginInstanceHttpHeaders(t, manifest); ok {
defer plugin.Close(context.Background())
req, _ := json.Marshal(map[string]string{
"url": "https://extism.org",
})
exit, output, err := plugin.Call("http_get", req)
if assertCall(t, err, exit) {
headers := map[string]string{}
err = json.Unmarshal(output, &headers)
if err != nil {
t.Error(err)
}
assert.Equal(t, "text/html; charset=utf-8", headers["content-type"])
}
}
}
func TestHTTPHeaders_denied(t *testing.T) {
manifest := manifest("http_headers.wasm")
manifest.AllowedHosts = []string{"extism.org"}
ctx := context.Background()
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(ctx)
req, _ := json.Marshal(map[string]string{
"url": "https://extism.org",
})
exit, output, err := plugin.Call("http_get", req)
if assertCall(t, err, exit) {
assert.Equal(t, output, []byte("{}"))
}
}
}
func TestLog_default(t *testing.T) {
manifest := manifest("log.wasm")
var buf bytes.Buffer
log.SetOutput(&buf)
defer func() {
log.SetOutput(os.Stderr)
}()
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
SetLogLevel(LogLevelWarn) // Only warn and error logs should be printed to the console
exit, _, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
logs := buf.String()
assert.Contains(t, logs, "this is a warning log")
assert.Contains(t, logs, "this is an error log")
assert.NotContains(t, logs, "this is a trace log")
assert.NotContains(t, logs, "this is a debug log")
assert.NotContains(t, logs, "this is an info log")
}
}
}
func TestLog_custom(t *testing.T) {
manifest := manifest("log.wasm")
type LogEntry struct {
message string
level LogLevel
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
var actual strings.Builder
var fmtLogMessage = func(level LogLevel, message string) string {
return fmt.Sprintf("%s: %s\n", level.String(), message)
}
plugin.SetLogger(func(level LogLevel, message string) {
actual.WriteString(fmtLogMessage(level, message))
switch level {
case LogLevelDebug:
assert.Equal(t, level.String(), "DEBUG")
case LogLevelInfo:
assert.Equal(t, level.String(), "INFO")
case LogLevelWarn:
assert.Equal(t, level.String(), "WARN")
case LogLevelError:
assert.Equal(t, level.String(), "ERROR")
case LogLevelTrace:
assert.Equal(t, level.String(), "TRACE")
}
})
SetLogLevel(LogLevelTrace)
exit, _, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
expected := []LogEntry{
{message: "this is a trace log", level: LogLevelTrace},
{message: "this is a debug log", level: LogLevelDebug},
{message: "this is an info log", level: LogLevelInfo},
{message: "this is a warning log", level: LogLevelWarn},
{message: "this is an error log", level: LogLevelError},
}
actualLogs := actual.String()
for _, log := range expected {
assert.Contains(t, actualLogs, fmtLogMessage(log.level, log.message))
}
}
SetLogLevel(LogLevelWarn)
actual.Reset()
exit, _, err = plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
expected := []LogEntry{
{message: "this is a warning log", level: LogLevelWarn},
{message: "this is an error log", level: LogLevelError},
}
expectedNot := []LogEntry{
{message: "this is a trace log", level: LogLevelTrace},
{message: "this is a debug log", level: LogLevelDebug},
{message: "this is an info log", level: LogLevelInfo},
}
actualLogs := actual.String()
for _, log := range expected {
assert.Contains(t, actualLogs, fmtLogMessage(log.level, log.message))
}
for _, log := range expectedNot {
assert.NotContains(t, actualLogs, fmtLogMessage(log.level, log.message))
}
}
}
}
func TestTimeout(t *testing.T) {
manifest := manifest("sleep.wasm")
manifest.Timeout = 100 // 100ms
manifest.Config["duration"] = "3" // sleep for 3 seconds
config := PluginConfig{
EnableWasi: true,
}
plugin, err := NewCompiledPlugin(context.Background(), manifest, config, nil)
if err != nil {
t.Errorf("Could not create plugin: %v", err)
}
instance, err := plugin.Instance(context.Background(), PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
defer instance.Close(context.Background())
exit, _, err := instance.Call("run_test", []byte{})
assert.Equal(t, sys.ExitCodeDeadlineExceeded, exit, "Exit code must be `sys.ExitCodeDeadlineExceeded`")
assert.Equal(t, "module closed with context deadline exceeded", err.Error())
}
func TestCancel(t *testing.T) {
manifest := manifest("sleep.wasm")
manifest.Config["duration"] = "3" // sleep for 3 seconds
ctx := context.Background()
plugin, err := NewCompiledPlugin(ctx, manifest, PluginConfig{
EnableWasi: true,
RuntimeConfig: wazero.NewRuntimeConfig().WithCloseOnContextDone(true),
}, nil)
if err != nil {
t.Errorf("Could not create plugin: %v", err)
}
defer plugin.Close(ctx)
instance, err := plugin.Instance(ctx, PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
if err != nil {
t.Errorf("Could not create plugin instance: %v", err)
}
ctx, cancel := context.WithCancel(context.Background())
go func() {
time.Sleep(100 * time.Millisecond)
cancel()
}()
exit, _, err := instance.CallWithContext(ctx, "run_test", []byte{})
assert.Equal(t, sys.ExitCodeContextCanceled, exit, "Exit code must be `sys.ExitCodeContextCanceled`")
assert.Equal(t, "module closed with context canceled", err.Error())
}
func TestVar(t *testing.T) {
manifest := manifest("var.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
plugin.Var["a"] = uintToLEBytes(10)
exit, _, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := uintFromLEBytes(plugin.Var["a"])
expected := uint(20)
assert.Equal(t, expected, actual)
}
exit, _, err = plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := uintFromLEBytes(plugin.Var["a"])
expected := uint(40)
assert.Equal(t, expected, actual)
}
}
}
func TestNoVars(t *testing.T) {
manifest := manifest("var.wasm")
manifest.Memory = &ManifestMemory{MaxVarBytes: 0}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
plugin.Var["a"] = uintToLEBytes(10)
_, _, err := plugin.Call("run_test", []byte{})
if err == nil {
t.Fail()
}
}
}
func TestFS(t *testing.T) {
manifest := manifest("fs.wasm")
manifest.AllowedPaths = map[string]string{
"testdata": "/mnt",
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("run_test", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := "hello world!"
assert.Equal(t, expected, actual)
}
}
}
func TestReadOnlyMount(t *testing.T) {
manifest := manifest("read_write.wasm")
manifest.AllowedPaths = map[string]string{
"ro:testdata": "/mnt",
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
plugin.Config["path"] = "/mnt/test.txt"
exit, output, err := plugin.Call("try_read", []byte{})
if assertCall(t, err, exit) {
actual := string(output)
expected := "hello world!"
assert.Equal(t, expected, actual)
}
_, _, err = plugin.Call("try_write", []byte("hello hello!"))
assert.NotNil(t, err, "Write must fail")
assert.Contains(t, err.Error(), "Failed to write file")
}
}
func TestCountVowels(t *testing.T) {
manifest := manifest("count_vowels.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output, err := plugin.Call("count_vowels", []byte("hello world"))
if assertCall(t, err, exit) {
expected := 3 // 3 vowels
var actual map[string]int
json.Unmarshal(output, &actual)
assert.Equal(t, expected, actual["count"])
}
}
}
func TestMultipleCallsOutput(t *testing.T) {
manifest := manifest("count_vowels.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, output1, err := plugin.Call("count_vowels", []byte("aaa"))
if !assertCall(t, err, exit) {
return
}
exit, output2, err := plugin.Call("count_vowels", []byte("bbba"))
if !assertCall(t, err, exit) {
return
}
assert.Equal(t, `{"count":3,"total":3,"vowels":"aeiouAEIOU"}`, string(output1))
assert.Equal(t, `{"count":1,"total":4,"vowels":"aeiouAEIOU"}`, string(output2))
}
}
func TestHelloHaskell(t *testing.T) {
var buf bytes.Buffer
log.SetOutput(&buf)
defer func() {
log.SetOutput(os.Stderr)
}()
manifest := manifest("hello_haskell.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
SetLogLevel(LogLevelTrace)
plugin.Config["greeting"] = "Howdy"
exit, output, err := plugin.Call("testing", []byte("John"))
if assertCall(t, err, exit) {
actual := string(output)
expected := "Howdy, John"
assert.Equal(t, expected, actual)
logs := buf.String()
assert.Contains(t, logs, "Initialized Haskell language runtime.")
}
}
}
func TestJsonManifest(t *testing.T) {
m := `
{
"wasm": [
{
"path": "wasm/sleep.wasm"
}
],
"memory": {
"max_pages": 100
},
"config": {
"key1": "value1",
"key2": "value2",
"duration": "3"
},
"timeout_ms": 100
}
`
manifest := Manifest{}
err := manifest.UnmarshalJSON([]byte(m))
if err != nil {
t.Error(err)
}
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
exit, _, err := plugin.Call("run_test", []byte{})
assert.Equal(t, sys.ExitCodeDeadlineExceeded, exit, "Exit code must be `sys.ExitCodeDeadlineExceeded`")
assert.Equal(t, "module closed with context deadline exceeded", err.Error())
}
}
func TestInputOffset(t *testing.T) {
manifest := manifest("input_offset.wasm")
if plugin, ok := pluginInstance(t, manifest); ok {
defer plugin.Close(context.Background())
input_data := []byte("hello world")
exit, output, err := plugin.Call("input_offset_length", input_data)
if assertCall(t, err, exit) {
assert.Equal(t, len(input_data), int(output[0]))
}
}
}
func TestObserve(t *testing.T) {
ctx := context.Background()
var buf bytes.Buffer
log.SetOutput(&buf)
adapter := stdout.NewStdoutAdapter()
adapter.Start(ctx)
manifest := manifest("nested.c.instr.wasm")
config := PluginConfig{
EnableWasi: true,
ObserveAdapter: adapter.AdapterBase,
ObserveOptions: &observe.Options{
SpanFilter: &observe.SpanFilter{MinDuration: 1 * time.Nanosecond},
ChannelBufferSize: 1024,
},
}
// Plugin 1
plugin, err := NewCompiledPlugin(ctx, manifest, config, nil)
if err != nil {
panic(err)
}
instance, err := plugin.Instance(ctx, PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
if err != nil {
panic(err)
}
meta := map[string]string{
"http.url": "https://example.com/my-endpoint",
"http.status_code": "200",
"http.client_ip": "192.168.1.0",
}
instance.traceCtx.Metadata(meta)
_, _, _ = instance.Call("_start", []byte("hello world"))
plugin.Close(ctx)
// HACK: make sure we give enough time for the events to get flushed
time.Sleep(100 * time.Millisecond)
actual := buf.String()
assert.Contains(t, actual, " Call to _start took")
assert.Contains(t, actual, " Call to main took")
assert.Contains(t, actual, " Call to one took")
assert.Contains(t, actual, " Call to two took")
assert.Contains(t, actual, " Call to three took")
assert.Contains(t, actual, " Call to printf took")
// Reset underlying buffer
buf.Reset()
// Plugin 2
plugin2, err := NewCompiledPlugin(ctx, manifest, config, nil)
if err != nil {
panic(err)
}
instance2, err := plugin2.Instance(ctx, PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
if err != nil {
panic(err)
}
_, _, _ = instance2.Call("_start", []byte("hello world"))
plugin2.Close(ctx)
// HACK: make sure we give enough time for the events to get flushed
time.Sleep(100 * time.Millisecond)
actual2 := buf.String()
assert.Contains(t, actual2, " Call to _start took")
assert.Contains(t, actual2, " Call to main took")
assert.Contains(t, actual2, " Call to one took")
assert.Contains(t, actual2, " Call to two took")
assert.Contains(t, actual2, " Call to three took")
assert.Contains(t, actual2, " Call to printf took")
}
// make sure cancelling the context given to NewCompiledPlugin doesn't affect plugin calls
func TestContextCancel(t *testing.T) {
manifest := manifest("sleep.wasm")
manifest.Config["duration"] = "0" // sleep for 0 seconds
ctx, cancel := context.WithCancel(context.Background())
config := PluginConfig{
EnableWasi: true,
RuntimeConfig: wazero.NewRuntimeConfig().WithCloseOnContextDone(true),
}
plugin, err := NewCompiledPlugin(ctx, manifest, config, nil)
if err != nil {
t.Errorf("Could not create plugin: %v", err)
}
instance, err := plugin.Instance(ctx, PluginInstanceConfig{
ModuleConfig: wazero.NewModuleConfig().WithSysWalltime(),
})
defer plugin.Close(context.Background())
cancel() // cancel the parent context
exit, out, err := instance.CallWithContext(context.Background(), "run_test", []byte{})
if assertCall(t, err, exit) {
assert.Equal(t, "slept for 0 seconds", string(out))
}