fallback to regular assert.Equal for smaller texts

internal/testcli/golden.go

@@ -15,6 +15,7 @@ import (
 	"github.com/databricks/databricks-sdk-go"
 	"github.com/databricks/databricks-sdk-go/service/iam"
 	"github.com/elliotchance/orderedmap/v3"
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
@@ -47,9 +48,15 @@ func RequireOutput(t testutil.TestingT, ctx context.Context, args []string, expe
 	out = ReplaceOutput(t, ctx, out)
 
 	if out != expected {
-		actual := fmt.Sprintf("Output from %v", args)
-		diff := testutil.Diff(expectedFilename, actual, expected, out)
-		t.Errorf("Diff:\n" + diff)
+		if len(out) < 1000 && len(expected) < 1000 {
+			// This shows full strings + diff which could be useful when debugging newlines
+			assert.Equal(t, expected, out)
+		} else {
+			// only show diff for large texts
+			actual := fmt.Sprintf("Output from %v", args)
+			diff := testutil.Diff(expectedFilename, actual, expected, out)
+			t.Errorf("Diff:\n" + diff)
+		}
 
 		if os.Getenv("TESTS_OUTPUT") == "OVERWRITE" {
 			WriteFile(t, ctx, filepath.Join(dir, expectedFilename), out)