complete failfast implementation

gnovm/cmd/gno/test.go

@@ -214,6 +214,7 @@ func execTest(cfg *testCfg, args []string, io commands.IO) error {
 	opts.Metrics = cfg.printRuntimeMetrics
 	opts.Events = cfg.printEvents
 	opts.Debug = cfg.debug
+	opts.FailfastFlag = cfg.failfast
 
 	buildErrCount := 0
 	testErrCount := 0

gnovm/cmd/gno/testdata/test/flag_fail-fast.txtar

@@ -8,11 +8,11 @@ stderr 'someError'
 ! stderr 'secondError'
 
 
--- one/failfast.gno --
-package one
+-- failfast.gno --
+package failfast
 
--- one/failfast_test.gno --
-package one
+-- failfast_test.gno --
+package failfast
 
 import (
 	"testing"
@@ -22,17 +22,6 @@ func TestFail(t *testing.T) {
 	t.Error("someError")
 }
 
--- two/failfast.gno --
-package two
-
--- two/failfast_test.gno --
-package two
-
-import (
-	"testing"
-)
-
 func TestFail2(t *testing.T) {
 	t.Error("secondError")
 }
-

gnovm/pkg/test/test.go

@@ -115,6 +115,8 @@ type TestOptions struct {
 
 	// Flag to filter tests to run.
 	RunFlag string
+	// Flag to stop executing as soon a test fails.
+	FailfastFlag bool
 	// Whether to update filetest directives.
 	Sync bool
 	// Uses Error to print when starting a test, and prints test output directly,
@@ -382,6 +384,9 @@ func (opts *TestOptions) runTestFiles(
 		if rep.Failed {
 			err := fmt.Errorf("failed: %q", tf.Name)
 			errs = multierr.Append(errs, err)
+			if opts.FailfastFlag {
+				return errs
+			}
 		}
 
 		if opts.Metrics {