| // Copyright 2021 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package fidlgen_cpp |
| |
| import ( |
| "sync" |
| "testing" |
| |
| "github.com/google/go-cmp/cmp/cmpopts" |
| |
| "go.fuchsia.dev/fuchsia/tools/fidl/lib/fidlgentest" |
| ) |
| |
| func onlyProtocol(t *testing.T, root Root) Protocol { |
| var protocols []Protocol |
| for _, decl := range root.Decls { |
| if p, ok := decl.(Protocol); ok { |
| protocols = append(protocols, p) |
| } |
| } |
| if len(protocols) != 1 { |
| t.Fatal("Must have a single protocol defined") |
| } |
| return protocols[0] |
| } |
| |
| var exampleProtocol = func() func(t *testing.T) Protocol { |
| var once sync.Once |
| var p Protocol |
| return func(t *testing.T) Protocol { |
| once.Do(func() { |
| root := compile(fidlgentest.EndToEndTest{T: t}.Single(` |
| library example; |
| |
| protocol P { |
| OneWay(); |
| TwoWay() -> (); |
| -> Event(); |
| }; |
| `), HeaderOptions{}) |
| p = onlyProtocol(t, root) |
| }) |
| return p |
| } |
| }() |
| |
| func toNames(methods []*Method) []string { |
| var s []string |
| for _, m := range methods { |
| s = append(s, m.Natural.Name()) |
| } |
| return s |
| } |
| |
| func TestMatchOneWayMethods(t *testing.T) { |
| expectEqual(t, toNames(exampleProtocol(t).OneWayMethods), []string{"OneWay"}) |
| } |
| |
| func TestMatchTwoWayMethods(t *testing.T) { |
| expectEqual(t, toNames(exampleProtocol(t).TwoWayMethods), []string{"TwoWay"}) |
| } |
| |
| func TestMatchClientMethods(t *testing.T) { |
| expectEqual(t, toNames(exampleProtocol(t).ClientMethods), []string{"OneWay", "TwoWay"}) |
| } |
| |
| func TestMatchEvents(t *testing.T) { |
| expectEqual(t, toNames(exampleProtocol(t).Events), []string{"Event"}) |
| } |
| |
| // |
| // Test allocation strategies |
| // |
| |
| func TestWireBindingsAllocation(t *testing.T) { |
| cases := []struct { |
| desc string |
| fidl string |
| actualChooser func(p Protocol) allocation |
| expected allocation |
| expectedType string |
| }{ |
| { |
| desc: "client request inlined", |
| fidl: "protocol P { Method(array<uint8>:496 a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Request.ClientAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 512, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<512>", |
| }, |
| { |
| desc: "client request boxed due to message size", |
| fidl: "protocol P { Method(array<uint8>:497 a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Request.ClientAllocation }, |
| expected: allocation{ |
| IsStack: false, |
| Size: 0, |
| }, |
| expectedType: "::fidl::internal::BoxedMessageBuffer<520>", |
| }, |
| { |
| desc: "client request inlined despite message flexibility", |
| fidl: "flexible union Flexible { 1: int32 a; };" + |
| "protocol P { Method(Flexible a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Request.ClientAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 48, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<48>", |
| }, |
| { |
| desc: "client response boxed due to message flexibility", |
| fidl: "flexible union Flexible { 1: int32 a; };" + |
| "protocol P { Method() -> (Flexible a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Response.ClientAllocation }, |
| expected: allocation{ |
| IsStack: false, |
| Size: 0, |
| }, |
| expectedType: "::fidl::internal::BoxedMessageBuffer<ZX_CHANNEL_MAX_MSG_BYTES>", |
| }, |
| { |
| desc: "server response inlined", |
| fidl: "protocol P { Method() -> (array<uint8>:496 a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Response.ServerAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 512, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<512>", |
| }, |
| { |
| desc: "server response boxed due to message size", |
| fidl: "protocol P { Method() -> (array<uint8>:497 a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Response.ServerAllocation }, |
| expected: allocation{ |
| IsStack: false, |
| Size: 0, |
| }, |
| expectedType: "::fidl::internal::BoxedMessageBuffer<520>", |
| }, |
| { |
| desc: "server response inlined despite message flexibility", |
| fidl: "flexible union Flexible { 1: int32 a; };" + |
| "protocol P { Method() -> (Flexible a); };", |
| actualChooser: func(p Protocol) allocation { return p.Methods[0].Response.ServerAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 48, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<48>", |
| }, |
| { |
| desc: "client sync event handling inlined", |
| fidl: "protocol P {" + |
| " -> Event1(int32 a);" + |
| " -> Event2(int32 a, int32 b);" + |
| "};", |
| actualChooser: func(p Protocol) allocation { return p.SyncEventAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 24, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<24>", |
| }, |
| { |
| desc: "client sync event handling boxed due to message size", |
| fidl: "protocol P {" + |
| " -> Event1(array<uint8>:497 a);" + |
| " -> Event2(int32 a, int32 b);" + |
| "};", |
| actualChooser: func(p Protocol) allocation { return p.SyncEventAllocation }, |
| expected: allocation{ |
| IsStack: false, |
| Size: 0, |
| }, |
| expectedType: "::fidl::internal::BoxedMessageBuffer<520>", |
| }, |
| { |
| desc: "client sync event handling boxed due to message flexibility", |
| fidl: "table Flexible {};" + |
| "protocol P {" + |
| " -> Event1(Flexible f);" + |
| " -> Event2(int32 a, int32 b);" + |
| "};", |
| actualChooser: func(p Protocol) allocation { return p.SyncEventAllocation }, |
| expected: allocation{ |
| IsStack: false, |
| Size: 0, |
| }, |
| expectedType: "::fidl::internal::BoxedMessageBuffer<ZX_CHANNEL_MAX_MSG_BYTES>", |
| }, |
| { |
| desc: "client sync event handling inlined ignoring flexible two-way response", |
| fidl: "table Flexible {};" + |
| "protocol P {" + |
| " Method() -> (Flexible f);" + |
| " -> Event2(int32 a, int32 b);" + |
| "};", |
| actualChooser: func(p Protocol) allocation { return p.SyncEventAllocation }, |
| expected: allocation{ |
| IsStack: true, |
| Size: 32, |
| }, |
| expectedType: "::fidl::internal::InlineMessageBuffer<32>", |
| }, |
| } |
| for _, ex := range cases { |
| t.Run(ex.desc, func(t *testing.T) { |
| root := compile(fidlgentest.EndToEndTest{T: t}.Single("library example; "+ex.fidl), |
| HeaderOptions{}) |
| var protocols []Protocol |
| for _, decl := range root.Decls { |
| if p, ok := decl.(Protocol); ok { |
| protocols = append(protocols, p) |
| } |
| } |
| if len(protocols) != 1 { |
| t.Fatal("Must have a single protocol defined") |
| } |
| |
| p := protocols[0] |
| actual := ex.actualChooser(p) |
| expectEqual(t, actual, ex.expected, cmpopts.IgnoreUnexported(allocation{})) |
| expectEqual(t, actual.BackingBufferType(), ex.expectedType) |
| }) |
| } |
| } |
| |
| // |
| // Test protocol associated declaration names |
| // |
| |
| func TestHlMessagingProtocolAssociatedNames(t *testing.T) { |
| fidl := ` |
| library fuchsia.foobar; |
| |
| // Regular protocol |
| protocol P {}; |
| ` |
| root := compile(fidlgentest.EndToEndTest{T: t}.Single(fidl), HeaderOptions{}) |
| |
| messaging := root.Decls[0].(Protocol).hlMessaging |
| assertEqual(t, messaging.ProtocolMarker.String(), "::fuchsia::foobar::P") |
| assertEqual(t, messaging.InterfaceAliasForStub.String(), "::fuchsia::foobar::P_Stub::P_clazz") |
| assertEqual(t, messaging.Proxy.String(), "::fuchsia::foobar::P_Proxy") |
| assertEqual(t, messaging.Stub.String(), "::fuchsia::foobar::P_Stub") |
| assertEqual(t, messaging.EventSender.String(), "::fuchsia::foobar::P_EventSender") |
| assertEqual(t, messaging.SyncInterface.String(), "::fuchsia::foobar::P_Sync") |
| assertEqual(t, messaging.SyncProxy.String(), "::fuchsia::foobar::P_SyncProxy") |
| assertEqual(t, messaging.RequestEncoder.String(), "::fuchsia::foobar::P_RequestEncoder") |
| assertEqual(t, messaging.RequestDecoder.String(), "::fuchsia::foobar::P_RequestDecoder") |
| assertEqual(t, messaging.ResponseEncoder.String(), "::fuchsia::foobar::P_ResponseEncoder") |
| assertEqual(t, messaging.ResponseDecoder.String(), "::fuchsia::foobar::P_ResponseDecoder") |
| } |
| |
| func TestWireMessagingProtocolAssociatedNames(t *testing.T) { |
| fidl := ` |
| library fuchsia.foobar; |
| |
| // Regular protocol |
| protocol P {}; |
| ` |
| root := compile(fidlgentest.EndToEndTest{T: t}.Single(fidl), HeaderOptions{}) |
| |
| messaging := root.Decls[0].(Protocol).wireTypeNames |
| assertEqual(t, messaging.WireProtocolMarker.String(), "::fuchsia_foobar::P") |
| assertEqual(t, messaging.WireSyncClient.String(), "::fidl::WireSyncClient<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireClient.String(), "::fidl::WireClient<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireSyncEventHandler.String(), "::fidl::WireSyncEventHandler<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireAsyncEventHandler.String(), "::fidl::WireAsyncEventHandler<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireInterface.String(), "::fidl::WireInterface<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireRawChannelInterface.String(), "::fidl::WireRawChannelInterface<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireServer.String(), "::fidl::WireServer<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireEventSender.String(), "::fidl::WireEventSender<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireWeakEventSender.String(), "::fidl::internal::WireWeakEventSender<::fuchsia_foobar::P>") |
| assertEqual(t, messaging.WireClientImpl.String(), "::fidl::internal::WireClientImpl<::fuchsia_foobar::P>") |
| } |
