Add support for gopherjs test --count flag.

dmitshur · dmitshur · commit 43db6ffb5d8e · 2017-04-29T16:12:35.000-04:00
It's useful for running a benchmark multiple times, to get a better
benchmark comparison.
diff --git a/tool.go b/tool.go
@@ -305,6 +305,7 @@ func main() {
 	}
 	bench := cmdTest.Flags().String("bench", "", "Run benchmarks matching the regular expression. By default, no benchmarks run. To run all benchmarks, use '--bench=.'.")
 	benchtime := cmdTest.Flags().String("benchtime", "", "Run enough iterations of each benchmark to take t, specified as a time.Duration (for example, -benchtime 1h30s). The default is 1 second (1s).")
+	count := cmdTest.Flags().String("count", "", "Run each test and benchmark n times (default 1). Examples are always run once.")
 	run := cmdTest.Flags().String("run", "", "Run only those tests and examples matching the regular expression.")
 	short := cmdTest.Flags().Bool("short", false, "Tell long-running tests to shorten their run time.")
 	verbose := cmdTest.Flags().BoolP("verbose", "v", false, "Log all tests as they are run. Also print all text from Log and Logf calls even if the test succeeds.")
@@ -467,6 +468,9 @@ func main() {
 				if *benchtime != "" {
 					args = append(args, "-test.benchtime", *benchtime)
 				}
+				if *count != "" {
+					args = append(args, "-test.count", *count)
+				}
 				if *run != "" {
 					args = append(args, "-test.run", *run)
 				}

Original file line number	Diff line number	Diff line change
`@@ -305,6 +305,7 @@ func main() {`
`305`	`305`	`}`
`306`	`306`	`bench := cmdTest.Flags().String("bench", "", "Run benchmarks matching the regular expression. By default, no benchmarks run. To run all benchmarks, use '--bench=.'.")`
`307`	`307`	`benchtime := cmdTest.Flags().String("benchtime", "", "Run enough iterations of each benchmark to take t, specified as a time.Duration (for example, -benchtime 1h30s). The default is 1 second (1s).")`
	`308`	`+ count := cmdTest.Flags().String("count", "", "Run each test and benchmark n times (default 1). Examples are always run once.")`
`308`	`309`	`run := cmdTest.Flags().String("run", "", "Run only those tests and examples matching the regular expression.")`
`309`	`310`	`short := cmdTest.Flags().Bool("short", false, "Tell long-running tests to shorten their run time.")`
`310`	`311`	`verbose := cmdTest.Flags().BoolP("verbose", "v", false, "Log all tests as they are run. Also print all text from Log and Logf calls even if the test succeeds.")`
`@@ -467,6 +468,9 @@ func main() {`
`467`	`468`	`if *benchtime != "" {`
`468`	`469`	`args = append(args, "-test.benchtime", *benchtime)`
`469`	`470`	`}`
	`471`	`+ if *count != "" {`
	`472`	`+ args = append(args, "-test.count", *count)`
	`473`	`+ }`
`470`	`474`	`if *run != "" {`
`471`	`475`	`args = append(args, "-test.run", *run)`
`472`	`476`	`}`