testing: refactor the v test implementation to make supporting different output modes easier

cmd/tools/modules/testing/output_dump.v

@@ -0,0 +1,64 @@
+module testing
+
+// DumpReporter implements the interface testing.Reporter.
+// It is used by `v -test-runner dump test .`
+pub struct DumpReporter {
+mut:
+	files []string
+}
+
+//
+
+pub fn (mut r DumpReporter) worker_threads_start(files []string, mut ts TestSession) {
+	eprintln('> ${@METHOD} | files: ${files}')
+	r.files = files
+}
+
+pub fn (r DumpReporter) worker_threads_finish(mut ts TestSession) {
+	eprintln('> ${@METHOD}')
+}
+
+//
+
+pub fn (r DumpReporter) session_start(message string, mut ts TestSession) {
+	eprintln('> ${@METHOD} | message: ${message}')
+	// dump(ts)
+}
+
+pub fn (r DumpReporter) session_stop(message string, mut ts TestSession) {
+	eprintln('> ${@METHOD} | message: ${message}')
+}
+
+//
+
+pub fn (r DumpReporter) report(index int, message LogMessage) {
+	eprintln('> ${@METHOD} | index: ${index} | message: ${message}')
+}
+
+pub fn (r DumpReporter) report_stop() {
+	eprintln('> ${@METHOD}')
+}
+
+pub fn (r DumpReporter) progress(index int, message string) {
+	eprintln('> ${@METHOD} | index: ${index} | message: ${message}')
+}
+
+pub fn (r DumpReporter) update_last_line(index int, message string) {
+	eprintln('> ${@METHOD} | index: ${index} | message: ${message}')
+}
+
+pub fn (r DumpReporter) update_last_line_and_move_to_next(index int, message string) {
+	eprintln('> ${@METHOD} | index: ${index} | message: ${message}')
+}
+
+pub fn (r DumpReporter) message(index int, message string) {
+	eprintln('> ${@METHOD} | index: ${index} | message: ${message}')
+}
+
+pub fn (r DumpReporter) divider() {
+	eprintln('> ${@METHOD}')
+}
+
+pub fn (r DumpReporter) list_of_failed_commands(failed_cmds []string) {
+	eprintln('> ${@METHOD} | failed_cmds: ${failed_cmds}')
+}