go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/hack-pad/go-indexeddb v0.2.0
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/jwalterweatherman v1.1.0
-	gitlab.com/elixxir/client/v4 v4.6.3
+	gitlab.com/elixxir/client/v4 v4.6.2-0.20230511215110-b43e18a47875
 	gitlab.com/elixxir/crypto v0.0.7-0.20230413162806-a99ec4bfea32
 	gitlab.com/elixxir/primitives v0.0.3-0.20230214180039-9a25e2d3969c
 	gitlab.com/xx_network/crypto v0.0.5-0.20230214003943-8a09396e95dd
@@ -22,6 +22,7 @@ require (
 	github.com/badoux/checkmail v1.2.1 // indirect
 	github.com/cenkalti/backoff/v4 v4.1.3 // indirect
 	github.com/cloudflare/circl v1.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/desertbit/timer v0.0.0-20180107155436-c41aec40b27f // indirect
 	github.com/elliotchance/orderedmap v1.4.0 // indirect
 	github.com/fsnotify/fsnotify v1.5.4 // indirect
@@ -48,6 +49,7 @@ require (
 	github.com/pelletier/go-toml v1.9.5 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.2 // indirect
 	github.com/pkg/profile v1.6.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rs/cors v1.8.2 // indirect
 	github.com/sethvargo/go-diceware v0.3.0 // indirect
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e // indirect
@@ -57,6 +59,7 @@ require (
 	github.com/spf13/cobra v1.7.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.12.0 // indirect
+	github.com/stretchr/testify v1.8.2 // indirect
 	github.com/subosito/gotenv v1.4.0 // indirect
 	github.com/ttacon/builder v0.0.0-20170518171403-c099f663e1c2 // indirect
 	github.com/ttacon/libphonenumber v1.2.1 // indirect
@@ -64,7 +67,7 @@ require (
 	github.com/zeebo/blake3 v0.2.3 // indirect
 	gitlab.com/elixxir/bloomfilter v0.0.0-20230315224936-a4459418f300 // indirect
 	gitlab.com/elixxir/comms v0.0.4-0.20230310205528-f06faa0d2f0b // indirect
-	gitlab.com/elixxir/ekv v0.2.1 // indirect
+	gitlab.com/elixxir/ekv v0.3.1-0.20230504190918-f5e96603c2e0 // indirect
 	gitlab.com/xx_network/comms v0.0.4-0.20230214180029-5387fb85736d // indirect
 	gitlab.com/xx_network/ring v0.0.3-0.20220902183151-a7d3b15bc981 // indirect
 	gitlab.com/yawning/bsaes.git v0.0.0-20190805113838-0a714cd429ec // indirect

go.sum

@@ -513,6 +513,8 @@ gitlab.com/elixxir/client/v4 v4.6.2-0.20230413171204-002612660098 h1:bdwXgEa0i9K
 gitlab.com/elixxir/client/v4 v4.6.2-0.20230413171204-002612660098/go.mod h1:G+lN+LvQPGcm5BQnrhnqT1xiRIAzH3OffAM+5oI9SUg=
 gitlab.com/elixxir/client/v4 v4.6.2-0.20230425190953-cd51598e9245 h1:pBwoSYD+BFIr5Wyc+PQhqm+fZGsRSNXCpF0z1cQQzK8=
 gitlab.com/elixxir/client/v4 v4.6.2-0.20230425190953-cd51598e9245/go.mod h1:G+lN+LvQPGcm5BQnrhnqT1xiRIAzH3OffAM+5oI9SUg=
+gitlab.com/elixxir/client/v4 v4.6.2-0.20230511215110-b43e18a47875 h1:u9DlU8xAk0rTvguhWK+6D/MfLHdR+jlDTfGJjiszJDE=
+gitlab.com/elixxir/client/v4 v4.6.2-0.20230511215110-b43e18a47875/go.mod h1:dLKU2zSWrZLk/fomAtt1DFGgpTHQAfPdxdXNp3EtRZU=
 gitlab.com/elixxir/client/v4 v4.6.3 h1:oUsm5cn2Vnfqz+xwGYKrqFkPNN3sDAyp00EPGhUIA5E=
 gitlab.com/elixxir/client/v4 v4.6.3/go.mod h1:G+lN+LvQPGcm5BQnrhnqT1xiRIAzH3OffAM+5oI9SUg=
 gitlab.com/elixxir/comms v0.0.4-0.20230310205528-f06faa0d2f0b h1:8AVK93UEs/aufoqtFgyMVt9gf0oJ8F4pA60ZvEVvG+s=
@@ -521,6 +523,8 @@ gitlab.com/elixxir/crypto v0.0.7-0.20230413162806-a99ec4bfea32 h1:Had0F7rMPgJJ2B
 gitlab.com/elixxir/crypto v0.0.7-0.20230413162806-a99ec4bfea32/go.mod h1:/SLOlvkYVVJf6IU+vEjMLnS7cjjcoTlPV45g6tv6INc=
 gitlab.com/elixxir/ekv v0.2.1 h1:dtwbt6KmAXG2Tik5d60iDz2fLhoFBgWwST03p7T+9Is=
 gitlab.com/elixxir/ekv v0.2.1/go.mod h1:USLD7xeDnuZEavygdrgzNEwZXeLQJK/w1a+htpN+JEU=
+gitlab.com/elixxir/ekv v0.3.1-0.20230504190918-f5e96603c2e0 h1:4d2vg4Sh3N5mR1ta152cg6ybPWHYqsPtkEyJKaDYGnw=
+gitlab.com/elixxir/ekv v0.3.1-0.20230504190918-f5e96603c2e0/go.mod h1:EMaUQrsOxvEPQ0/8V/PSkGqFmEC2axBG/uqY0oW2uJM=
 gitlab.com/elixxir/primitives v0.0.3-0.20230214180039-9a25e2d3969c h1:muG8ff95woeVVwQoJHCEclxBFB22lc7EixPylEkYDRU=
 gitlab.com/elixxir/primitives v0.0.3-0.20230214180039-9a25e2d3969c/go.mod h1:phun4PLkHJA6wcL4JIhhxZztrmCyJHWPNppBP3DUD2Y=
 gitlab.com/xx_network/comms v0.0.4-0.20230214180029-5387fb85736d h1:AZf2h0fxyO1KxhZPP9//jG3Swb2BcuKbxtNXJgooLss=

main.go

@@ -230,6 +230,12 @@ func setGlobals() {
 	js.Global().Set("TransmitSingleUse", js.FuncOf(wasm.TransmitSingleUse))
 	js.Global().Set("Listen", js.FuncOf(wasm.Listen))
 
+	// wasm/sync.go
+	js.Global().Set("NewFileSystemRemoteStorage",
+		js.FuncOf(wasm.NewFileSystemRemoteStorage))
+	js.Global().Set("NewOrLoadSyncRemoteKV",
+		js.FuncOf(wasm.NewOrLoadSyncRemoteKV))
+
 	// wasm/timeNow.go
 	js.Global().Set("SetTimeSource", js.FuncOf(wasm.SetTimeSource))
 	js.Global().Set("SetOffset", js.FuncOf(wasm.SetOffset))

utils/utils.go

@@ -106,3 +106,21 @@ func Await(awaitable js.Value) (result []js.Value, err []js.Value) {
 		return nil, err
 	}
 }
+
+// RunAndCatch runs the specified function and catches any errors thrown by
+// Javascript. The errors should be of type Error.
+func RunAndCatch(fn func() js.Value) (js.Value, error) {
+	var err error
+	defer func() {
+		if r := recover(); r != nil {
+			switch x := r.(type) {
+			case js.Value:
+				err = js.Error{Value: x}
+			default:
+				panic(r)
+			}
+		}
+	}()
+
+	return fn(), err
+}

wasm/sync.go

+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file.                                                              //
+////////////////////////////////////////////////////////////////////////////////
+
+//go:build js && wasm
+
+package wasm
+
+import (
+	"syscall/js"
+
+	"gitlab.com/elixxir/client/v4/bindings"
+	"gitlab.com/elixxir/xxdk-wasm/utils"
+)
+
+// TODO: add tests
+
+////////////////////////////////////////////////////////////////////////////////
+// Remote Storage Interface and Implementation(s)                             //
+////////////////////////////////////////////////////////////////////////////////
+
+// RemoteStoreFileSystem wraps the [bindings.RemoteStoreFileSystem] object so
+// its methods can be wrapped to be Javascript compatible.
+type RemoteStoreFileSystem struct {
+	api *bindings.RemoteStoreFileSystem
+}
+
+// newRemoteStoreFileSystemJS creates a new Javascript compatible object
+// (map[string]any) that matches the [RemoteStoreFileSystem] structure.
+func newRemoteStoreFileSystemJS(api *bindings.RemoteStoreFileSystem) map[string]any {
+	rsf := RemoteStoreFileSystem{api}
+	rsfMap := map[string]any{
+		"Read":            js.FuncOf(rsf.Read),
+		"Write":           js.FuncOf(rsf.Write),
+		"GetLastModified": js.FuncOf(rsf.GetLastModified),
+		"GetLastWrite":    js.FuncOf(rsf.GetLastWrite),
+	}
+
+	return rsfMap
+}
+
+// NewFileSystemRemoteStorage is a constructor for [RemoteStoreFileSystem].
+//
+// Parameters:
+//   - args[0] - The base directory that all file operations will be performed.
+//     It must contain a file delimiter (i.e., `/`) (string).
+//
+// Returns:
+//   - A Javascript representation of the [RemoteStoreFileSystem] object.
+func NewFileSystemRemoteStorage(_ js.Value, args []js.Value) any {
+	baseDir := args[0].String()
+	api := bindings.NewFileSystemRemoteStorage(baseDir)
+
+	return newRemoteStoreFileSystemJS(api)
+}
+
+// Read reads from the provided file path and returns the data at that path.
+// An error is returned if it failed to read the file.
+//
+// Parameters:
+//   - args[0] - The file path to read from (string).
+//
+// Returns a promise:
+//   - Resolves to the file data (Uint8Array)
+//   - Rejected with an error if reading from the file fails.
+func (rsf *RemoteStoreFileSystem) Read(_ js.Value, args []js.Value) any {
+	path := args[0].String()
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		data, err := rsf.api.Read(path)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve(utils.CopyBytesToJS(data))
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// Write writes to the file path the provided data. An error is returned if it
+// fails to write to file.
+//
+// Parameters:
+//   - args[0] - The file path to write to (string).
+//   - args[1] - The file data to write (Uint8Array).
+//
+// Returns a promise:
+//   - Resolves on success (void).
+//   - Rejected with an error if writing to the file fails.
+func (rsf *RemoteStoreFileSystem) Write(_ js.Value, args []js.Value) any {
+	path := args[0].String()
+	data := utils.CopyBytesToGo(args[1])
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		err := rsf.api.Write(path, data)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve()
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// GetLastModified returns when the file at the given file path was last
+// modified. If the implementation that adheres to this interface does not
+// support this, [Write] or [Read] should be implemented to either write a
+// separate timestamp file or add a prefix.
+//
+// Parameters:
+//   - args[0] - The file path (string).
+//
+// Returns a promise:
+//   - Resolves to the JSON of [bindings.RemoteStoreReport] (Uint8Array).
+//   - Rejected with an error on failure.
+func (rsf *RemoteStoreFileSystem) GetLastModified(_ js.Value, args []js.Value) any {
+	path := args[0].String()
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		report, err := rsf.api.GetLastModified(path)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve(utils.CopyBytesToJS(report))
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// GetLastWrite retrieves the most recent successful write operation that was
+// received by [RemoteStoreFileSystem].
+//
+// Returns a promise:
+//   - Resolves to the JSON of [bindings.RemoteStoreReport] (Uint8Array).
+//   - Rejected with an error on failure.
+func (rsf *RemoteStoreFileSystem) GetLastWrite(js.Value, []js.Value) any {
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		report, err := rsf.api.GetLastWrite()
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve(utils.CopyBytesToJS(report))
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// RemoteKV Methods                                                           //
+////////////////////////////////////////////////////////////////////////////////
+
+// RemoteKV wraps the [bindings.RemoteKV] object so its methods can be wrapped
+// to be Javascript compatible.
+type RemoteKV struct {
+	api *bindings.RemoteKV
+}
+
+// newRemoteKvJS creates a new Javascript compatible object (map[string]any)
+// that matches the [RemoteKV] structure.
+func newRemoteKvJS(api *bindings.RemoteKV) map[string]any {
+	rkv := RemoteKV{api}
+	rkvMap := map[string]any{
+		"Write":   js.FuncOf(rkv.Write),
+		"Read":    js.FuncOf(rkv.Read),
+		"GetList": js.FuncOf(rkv.GetList),
+	}
+
+	return rkvMap
+}
+
+// NewOrLoadSyncRemoteKV constructs a [RemoteKV].
+//
+// Parameters:
+//   - args[0] - ID of [E2e] object in tracker (int).
+//   - args[1] - A Javascript object that implements the functions on
+//     [RemoteKVCallbacks]. These will be the callbacks that are called for
+//     [bindings.RemoteStore] operations.
+//   - args[2] - A [RemoteStoreCallbacks]. This will be a structure the consumer
+//     implements. This acts as a wrapper around the remote storage API
+//     (e.g., Google Drive's API, DropBox's API, etc.).
+//
+// Returns a promise:
+//   - Resolves to a Javascript representation of the [RemoteKV] object.
+//   - Rejected with an error if initialising the remote KV fails.
+func NewOrLoadSyncRemoteKV(_ js.Value, args []js.Value) any {
+	e2eID := args[0].Int()
+	remoteKvCallbacks := newRemoteKVCallbacks(args[1])
+	remote := newRemoteStoreCallbacks(args[2])
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		api, err :=
+			bindings.NewOrLoadSyncRemoteKV(e2eID, remoteKvCallbacks, remote)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve(newRemoteKvJS(api))
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// Write writes a transaction to the remote and local store.
+//
+// Parameters:
+//   - args[0] - The key that this data will be written to (i.e., the device
+//     name, the channel name, etc.). Certain keys should follow a pattern and
+//     contain special characters (see [RemoteKV.GetList] for details) (string).
+//   - args[1] - The data that will be stored (i.e., state data) (Uint8Array).
+//   - args[2] - A Javascript object that implements the functions on
+//     [RemoteKVCallbacks]. This may be nil if you do not care about the network
+//     report.
+//
+// Returns a promise:
+//   - Resolves on success (void).
+//   - Rejected with an error if writing to the file fails.
+func (rkv *RemoteKV) Write(_ js.Value, args []js.Value) any {
+	path := args[0].String()
+	data := utils.CopyBytesToGo(args[1])
+	cb := newRemoteKVCallbacks(args[1])
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		err := rkv.api.Write(path, data, cb)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve()
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// Read retrieves the data stored in the underlying KV. Returns an error if the
+// data at this key cannot be retrieved.
+//
+// Parameters:
+//   - args[0] - The path that this data will be written to (i.e., the device
+//     name) (string).
+//
+// Returns a promise:
+//   - Resolves to the file data (Uint8Array)
+//   - Rejected with an error if reading from the file fails.
+func (rkv *RemoteKV) Read(_ js.Value, args []js.Value) any {
+	path := args[0].String()
+
+	promiseFn := func(resolve, reject func(args ...any) js.Value) {
+		data, err := rkv.api.Read(path)
+		if err != nil {
+			reject(utils.JsTrace(err))
+		} else {
+			resolve(utils.CopyBytesToJS(data))
+		}
+	}
+
+	return utils.CreatePromise(promiseFn)
+}
+
+// GetList returns all entries for a path (or key) that contain the name
+// parameter from the local store.
+//
+// For example, assuming the usage of the [sync.LocalStoreKeyDelimiter], if both
+// "channels-123" and "channels-abc" are written to [RemoteKV], then
+// GetList("channels") will retrieve the data for both channels. All data that
+// contains no [sync.LocalStoreKeyDelimiter] can be retrieved using GetList("").
+//
+// Parameters:
+//   - args[0] - Some prefix to a Write operation. If no prefix applies, simply
+//     use the empty string. (string).
+//
+// Returns:
+//   - The file data (Uint8Array)
+//   - Throws a TypeError if getting the list fails.
+func (rkv *RemoteKV) GetList(_ js.Value, args []js.Value) any {
+	name := args[0].String()
+
+	data, err := rkv.api.GetList(name)
+	if err != nil {
+		utils.Throw(utils.TypeError, err)
+		return nil
+	}
+
+	return utils.CopyBytesToJS(data)
+}
+
+// RemoteStoreCallbacks wraps Javascript callbacks to adhere to the
+// [bindings.RemoteStore] interface.
+type RemoteStoreCallbacks struct {
+	read            func(args ...any) js.Value
+	write           func(args ...any) js.Value
+	getLastModified func(args ...any) js.Value
+	getLastWrite    func(args ...any) js.Value
+}
+
+// newRemoteStoreCallbacks maps the functions of the Javascript object matching
+// [bindings.RemoteStore] to a RemoteStoreCallbacks.
+func newRemoteStoreCallbacks(arg js.Value) *RemoteStoreCallbacks {
+	return &RemoteStoreCallbacks{
+		read:            utils.WrapCB(arg, "Read"),
+		write:           utils.WrapCB(arg, "Write"),
+		getLastModified: utils.WrapCB(arg, "GetLastModified"),
+		getLastWrite:    utils.WrapCB(arg, "GetLastWrite"),
+	}
+}
+
+// Read reads from the provided file path and returns the data at that path.
+// An error is returned if it failed to read the file.
+//
+// Parameters:
+//   - path - The file path to read from (string).
+//
+// Returns:
+//   - The file data (Uint8Array).
+//   - Catches any thrown errors (of type Error) and returns it as an error.
+func (rsCB *RemoteStoreCallbacks) Read(path string) ([]byte, error) {
+
+	fn := func() js.Value { return rsCB.read(path) }
+	v, err := utils.RunAndCatch(fn)
+	if err != nil {
+		return nil, err
+	}
+	return utils.CopyBytesToGo(v), err
+}
+
+// Write writes to the file path the provided data. An error is returned if it
+// fails to write to file.
+//
+// Parameters:
+//   - path - The file path to write to (string).
+//   - data - The file data to write (Uint8Array).
+//
+// Returns:
+//   - Catches any thrown errors (of type Error) and returns it as an error.
+func (rsCB *RemoteStoreCallbacks) Write(path string, data []byte) error {
+	fn := func() js.Value { return rsCB.write(path, utils.CopyBytesToJS(data)) }
+	_, err := utils.RunAndCatch(fn)
+	return err
+}
+
+// GetLastModified returns when the file at the given file path was last
+// modified. If the implementation that adheres to this interface does not
+// support this, [Write] or [Read] should be implemented to either write a
+// separate timestamp file or add a prefix.
+//
+// Parameters:
+//   - path - The file path (string).
+//
+// Returns:
+//   - JSON of [bindings.RemoteStoreReport] (Uint8Array).
+//   - Catches any thrown errors (of type Error) and returns it as an error.
+func (rsCB *RemoteStoreCallbacks) GetLastModified(path string) ([]byte, error) {
+	fn := func() js.Value { return rsCB.getLastModified(path) }
+	v, err := utils.RunAndCatch(fn)
+	if err != nil {
+		return nil, err
+	}
+	return utils.CopyBytesToGo(v), err
+}
+
+// GetLastWrite retrieves the most recent successful write operation that was
+// received by [RemoteStoreFileSystem].
+//
+// Returns:
+//   - JSON of [bindings.RemoteStoreReport] (Uint8Array).
+//   - Catches any thrown errors (of type Error) and returns it as an error.
+func (rsCB *RemoteStoreCallbacks) GetLastWrite() ([]byte, error) {
+	fn := func() js.Value { return rsCB.getLastWrite() }
+	v, err := utils.RunAndCatch(fn)
+	if err != nil {
+		return nil, err
+	}
+	return utils.CopyBytesToGo(v), err
+}
+
+// RemoteKVCallbacks wraps Javascript callbacks to adhere to the
+// [bindings.RemoteKVCallbacks] interface.
+type RemoteKVCallbacks struct {
+	keyUpdated        func(args ...any) js.Value
+	remoteStoreResult func(args ...any) js.Value
+}
+
+// newRemoteKVCallbacks maps the functions of the Javascript object matching
+// [bindings.RemoteKVCallbacks] to a RemoteKVCallbacks.
+func newRemoteKVCallbacks(arg js.Value) *RemoteKVCallbacks {
+	return &RemoteKVCallbacks{
+		keyUpdated:        utils.WrapCB(arg, "KeyUpdated"),
+		remoteStoreResult: utils.WrapCB(arg, "RemoteStoreResult"),
+	}
+}
+
+// KeyUpdated is the callback to be called any time a key is updated by another
+// device tracked by the [RemoteKV] store.
+//
+// Parameters:
+//   - key - (string).
+//   - oldVal - (Uint8Array).
+//   - newVal - (Uint8Array).
+//   - updated - (Boolean)
+func (rkvCB *RemoteKVCallbacks) KeyUpdated(
+	key string, oldVal, newVal []byte, updated bool) {
+	rkvCB.keyUpdated(
+		key, utils.CopyBytesToJS(oldVal), utils.CopyBytesToJS(newVal), updated)
+}
+
+// RemoteStoreResult is called to report network save results after the key has
+// been updated locally.
+//
+// NOTE: Errors originate from the authentication and writing code in regard to
+// remote which is handled by the user of this API. As a result, this callback
+// provides no information in simple implementations.
+//
+// Parameters:
+//   - remoteStoreReport - JSON of [bindings.RemoteStoreReport] (Uint8Array).
+func (rkvCB *RemoteKVCallbacks) RemoteStoreResult(remoteStoreReport []byte) {
+	rkvCB.remoteStoreResult(utils.CopyBytesToJS(remoteStoreReport))
+}

wasm/sync_test.go

+////////////////////////////////////////////////////////////////////////////////
+// Copyright © 2022 xx foundation                                             //
+//                                                                            //
+// Use of this source code is governed by a license that can be found in the  //
+// LICENSE file.                                                              //
+////////////////////////////////////////////////////////////////////////////////
+
+//go:build js && wasm
+
+package wasm
+
+import (
+	"reflect"
+	"testing"
+
+	"gitlab.com/elixxir/client/v4/bindings"
+)
+
+// Tests that the map representing RemoteStoreFileSystem returned by
+// newRemoteStoreFileSystemJS contains all of the methods on
+// RemoteStoreFileSystem.
+func Test_newRemoteStoreFileSystemJS(t *testing.T) {
+	rsfType := reflect.TypeOf(&RemoteStoreFileSystem{})
+
+	rsf := newRemoteStoreFileSystemJS(&bindings.RemoteStoreFileSystem{})
+	if len(rsf) != rsfType.NumMethod() {
+		t.Errorf("RemoteStoreFileSystem JS object does not have all methods."+
+			"\nexpected: %d\nreceived: %d", rsfType.NumMethod(), len(rsf))
+	}
+
+	for i := 0; i < rsfType.NumMethod(); i++ {
+		method := rsfType.Method(i)
+
+		if _, exists := rsf[method.Name]; !exists {
+			t.Errorf("Method %s does not exist.", method.Name)
+		}
+	}
+}
+
+// Tests that RemoteStoreFileSystem has all the methods that
+// [bindings.RemoteStoreFileSystem] has.
+func Test_RemoteStoreFileSystemMethods(t *testing.T) {
+	rsfType := reflect.TypeOf(&RemoteStoreFileSystem{})
+	binRsfType := reflect.TypeOf(&bindings.RemoteStoreFileSystem{})
+
+	if binRsfType.NumMethod() != rsfType.NumMethod() {
+		t.Errorf("WASM RemoteStoreFileSystem object does not have all methods "+
+			"from bindings.\nexpected: %d\nreceived: %d",
+			binRsfType.NumMethod(), rsfType.NumMethod())
+	}
+
+	for i := 0; i < binRsfType.NumMethod(); i++ {
+		method := binRsfType.Method(i)
+
+		if _, exists := rsfType.MethodByName(method.Name); !exists {
+			t.Errorf("Method %s does not exist.", method.Name)
+		}
+	}
+}
+
+// Tests that the map representing RemoteKV returned by newRemoteKvJS contains
+// all of the methods on RemoteKV.
+func Test_newRemoteKvJS(t *testing.T) {
+	rkvType := reflect.TypeOf(&RemoteKV{})
+
+	rkv := newRemoteKvJS(&bindings.RemoteKV{})
+	if len(rkv) != rkvType.NumMethod() {
+		t.Errorf("RemoteKV JS object does not have all methods."+
+			"\nexpected: %d\nreceived: %d", rkvType.NumMethod(), len(rkv))
+	}
+
+	for i := 0; i < rkvType.NumMethod(); i++ {
+		method := rkvType.Method(i)
+
+		if _, exists := rkv[method.Name]; !exists {
+			t.Errorf("Method %s does not exist.", method.Name)
+		}
+	}
+}
+
+// Tests that RemoteKV has all the methods that [bindings.RemoteKV] has.
+func Test_RemoteKVMethods(t *testing.T) {
+	rkvType := reflect.TypeOf(&RemoteKV{})
+	binRkvType := reflect.TypeOf(&bindings.RemoteKV{})
+
+	if binRkvType.NumMethod() != rkvType.NumMethod() {
+		t.Errorf("WASM RemoteKV object does not have all methods from "+
+			"bindings.\nexpected: %d\nreceived: %d",
+			binRkvType.NumMethod(), rkvType.NumMethod())
+	}
+
+	for i := 0; i < binRkvType.NumMethod(); i++ {
+		method := binRkvType.Method(i)
+
+		if _, exists := rkvType.MethodByName(method.Name); !exists {
+			t.Errorf("Method %s does not exist.", method.Name)
+		}
+	}
+}