fix: fix race conditions from #14332 (backport #14402) (#14421)

tests/Makefile

@@ -4,11 +4,8 @@ test-integration:
 test-integration-cov:
 	go test ./integration/... -timeout 30m -coverpkg=../... -coverprofile=integration-profile.out -covermode=atomic
 
-test-e2e: test-e2e-server
-	go test ./e2e/... -mod=readonly -timeout 30m -tags='e2e'
+test-e2e:
+	go test ./e2e/... -mod=readonly -timeout 30m -race -tags='e2e'
 
-test-e2e-cov: test-e2e-server
-	go test ./e2e/... -mod=readonly -timeout 30m -race -tags='e2e' -coverpkg=../... -coverprofile=e2e-profile.out -covermode=atomic
-
-test-e2e-server:
-	go test ./e2e/server -mod=readonly -timeout 30m -tags='e2e' -coverpkg=../... -coverprofile=e2e-server-profile.out -covermode=atomic
+test-e2e-cov:
+	go test ./e2e/... -mod=readonly -timeout 30m -race -tags='e2e' -coverpkg=../... -coverprofile=e2e-profile.out -covermode=atomic

tests/e2e/server/export_test.go

@@ -1,5 +1,5 @@
-//go:build !race
-// +build !race
+//go:build e2e
+// +build e2e
 
 package server_test
 

types/module/module.go

@@ -382,8 +382,6 @@ func (m *Manager) ExportGenesis(ctx sdk.Context, cdc codec.JSONCodec) map[string
 
 // ExportGenesisForModules performs export genesis functionality for modules
 func (m *Manager) ExportGenesisForModules(ctx sdk.Context, cdc codec.JSONCodec, modulesToExport []string) map[string]json.RawMessage {
-	genesisData := make(map[string]json.RawMessage)
-
 	if len(modulesToExport) == 0 {
 		modulesToExport = m.OrderExportGenesis
 	}
@@ -393,22 +391,20 @@ func (m *Manager) ExportGenesisForModules(ctx sdk.Context, cdc codec.JSONCodec,
 		panic(err)
 	}
 
-	channels := make([]chan json.RawMessage, len(modulesToExport))
-	modulesWithGenesis := make([]string, 0, len(modulesToExport))
-
-	for i, moduleName := range modulesToExport {
+	channels := make(map[string]chan json.RawMessage)
+	for _, moduleName := range modulesToExport {
 		if module, ok := m.Modules[moduleName].(HasGenesis); ok {
-			channels[i] = make(chan json.RawMessage)
-			modulesWithGenesis = append(modulesWithGenesis, moduleName)
-
+			channels[moduleName] = make(chan json.RawMessage)
 			go func(module HasGenesis, ch chan json.RawMessage) {
+				ctx := ctx.WithGasMeter(sdk.NewInfiniteGasMeter()) // avoid race conditions
 				ch <- module.ExportGenesis(ctx, cdc)
-			}(module, channels[i])
+			}(module, channels[moduleName])
 		}
 	}
 
-	for i, moduleName := range modulesWithGenesis {
-		genesisData[moduleName] = <-channels[i]
+	genesisData := make(map[string]json.RawMessage)
+	for moduleName := range channels {
+		genesisData[moduleName] = <-channels[moduleName]
 	}
 
 	return genesisData

types/module/module_test.go

@@ -188,7 +188,7 @@ func TestManager_ExportGenesis(t *testing.T) {
 	require.NotNil(t, mm)
 	require.Equal(t, 2, len(mm.Modules))
 
-	ctx := sdk.Context{}
+	ctx := sdk.NewContext(nil, tmproto.Header{}, false, log.NewNopLogger())
 	interfaceRegistry := types.NewInterfaceRegistry()
 	cdc := codec.NewProtoCodec(interfaceRegistry)
 	mockAppModule1.EXPECT().ExportGenesis(gomock.Eq(ctx), gomock.Eq(cdc)).AnyTimes().Return(json.RawMessage(`{"key1": "value1"}`))
@@ -200,6 +200,8 @@ func TestManager_ExportGenesis(t *testing.T) {
 	}
 	require.Equal(t, want, mm.ExportGenesis(ctx, cdc))
 	require.Equal(t, want, mm.ExportGenesisForModules(ctx, cdc, []string{}))
+	require.Equal(t, map[string]json.RawMessage{"module1": json.RawMessage(`{"key1": "value1"}`)}, mm.ExportGenesisForModules(ctx, cdc, []string{"module1"}))
+	require.NotEqual(t, map[string]json.RawMessage{"module1": json.RawMessage(`{"key1": "value1"}`)}, mm.ExportGenesisForModules(ctx, cdc, []string{"module2"}))
 
 	require.Panics(t, func() {
 		mm.ExportGenesisForModules(ctx, cdc, []string{"module1", "modulefoo"})