Added summary generated event (#3682)

* added summary generated event

* fixed tests

cmd/run.go

@@ -202,6 +202,11 @@ func (c *cmdRun) run(cmd *cobra.Command, args []string) (err error) {
 			})
 			if hsErr == nil {
 				hsErr = handleSummaryResult(c.gs.FS, c.gs.Stdout, c.gs.Stderr, summaryResult)
+				waitForSummaryGeneratedEvent := emitEvent(&event.Event{
+					Type: event.TestSummaryGenerated,
+					Data: &event.SummaryData{Summary: summaryResult},
+				})
+				waitForSummaryGeneratedEvent()
 			}
 			if hsErr != nil {
 				logger.WithError(hsErr).Error("failed to handle the end-of-test summary")

cmd/tests/cmd_run_test.go

@@ -2073,6 +2073,7 @@ func TestEventSystemOK(t *testing.T) {
 		`got event IterStart with data '{Iteration:4 VUID:1 ScenarioName:default Error:<nil>}'`,
 		`got event IterEnd with data '{Iteration:4 VUID:1 ScenarioName:default Error:<nil>}'`,
 		`got event TestEnd with data '<nil>'`,
+		`got event TestSummaryGenerated with data '&{Summary:map[stdout:]}'`,
 		`got event Exit with data '&{Error:<nil>}'`,
 	}
 	log := ts.LoggerHook.Lines()
@@ -2107,6 +2108,7 @@ func TestEventSystemError(t *testing.T) {
 				"got event IterStart with data '{Iteration:0 VUID:1 ScenarioName:default Error:<nil>}'",
 				"got event IterEnd with data '{Iteration:0 VUID:1 ScenarioName:default Error:test aborted: oops! at file:///-:11:16(6)}'",
 				"got event TestEnd with data '<nil>'",
+				"got event TestSummaryGenerated with data '&{Summary:map[stdout:]}'",
 				"got event Exit with data '&{Error:test aborted: oops! at file:///-:11:16(6)}'",
 				"test aborted: oops! at file:///-:11:16(6)",
 			},
@@ -2143,6 +2145,7 @@ func TestEventSystemError(t *testing.T) {
 				"got event IterEnd with data '{Iteration:1 VUID:1 ScenarioName:default Error:Error: oops!\n\tat file:///-:9:11(3)\n}'",
 				"Error: oops!\n\tat file:///-:9:11(3)\n",
 				"got event TestEnd with data '<nil>'",
+				"got event TestSummaryGenerated with data '&{Summary:map[stdout:]}'",
 				"got event Exit with data '&{Error:<nil>}'",
 			},
 			expExitCode: 0,

event/type.go

@@ -1,5 +1,7 @@
 package event
 
+import "io"
+
 // Type represents the different event types emitted by k6.
 //
 //go:generate enumer -type=Type -trimprefix Type -output type_gen.go
@@ -18,12 +20,14 @@ const (
 	IterEnd
 	// Exit is emitted when the k6 process is about to exit.
 	Exit
+	// TestSummaryGenerated is emitted when the test result summary is generated.
+	TestSummaryGenerated
 )
 
 //nolint:gochecknoglobals
 var (
 	// GlobalEvents are emitted once per test run.
-	GlobalEvents = []Type{Init, TestStart, TestEnd, Exit}
+	GlobalEvents = []Type{Init, TestStart, TestEnd, TestSummaryGenerated, Exit}
 	// VUEvents are emitted multiple times per each VU.
 	VUEvents = []Type{IterStart, IterEnd}
 )
@@ -41,3 +45,8 @@ type IterData struct {
 	ScenarioName string
 	Error        error
 }
+
+// SummaryData is the data sent in the TestSummaryGenerated event.
+type SummaryData struct {
+	Summary map[string]io.Reader
+}