cmd/go: convert TestGoTestJSON to the script framework

Part of converting all tests to script framework to improve
test parallelism.

Updates #36320
Updates #17751

Change-Id: I72bbba0a20a8731a89e1b4f4c9ac13b21c080cd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/214119
Reviewed-by: Jay Conrod <jayconrod@google.com>

src/cmd/go/go_test.go

@@ -3986,44 +3986,6 @@ func TestInstallDeps(t *testing.T) {
 	tg.mustExist(p1)
 }
 
-func TestGoTestJSON(t *testing.T) {
-	skipIfGccgo(t, "gccgo does not have standard packages")
-	tooSlow(t)
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.parallel()
-	tg.makeTempdir()
-	tg.setenv("GOCACHE", tg.tempdir)
-	tg.setenv("GOPATH", filepath.Join(tg.pwd(), "testdata"))
-
-	// It would be nice to test that the output is interlaced
-	// but it seems to be impossible to do that in a short test
-	// that isn't also flaky. Just check that we get JSON output.
-	tg.run("test", "-json", "-short", "-v", "errors", "empty/pkg", "skipper")
-	tg.grepStdout(`"Package":"errors"`, "did not see JSON output")
-	tg.grepStdout(`"Action":"run"`, "did not see JSON output")
-
-	tg.grepStdout(`"Action":"output","Package":"empty/pkg","Output":".*no test files`, "did not see no test files print")
-	tg.grepStdout(`"Action":"skip","Package":"empty/pkg"`, "did not see skip")
-
-	tg.grepStdout(`"Action":"output","Package":"skipper","Test":"Test","Output":"--- SKIP:`, "did not see SKIP output")
-	tg.grepStdout(`"Action":"skip","Package":"skipper","Test":"Test"`, "did not see skip result for Test")
-
-	tg.run("test", "-json", "-short", "-v", "errors")
-	tg.grepStdout(`"Action":"output","Package":"errors","Output":".*\(cached\)`, "did not see no cached output")
-
-	tg.run("test", "-json", "-bench=NONE", "-short", "-v", "errors")
-	tg.grepStdout(`"Package":"errors"`, "did not see JSON output")
-	tg.grepStdout(`"Action":"run"`, "did not see JSON output")
-
-	tg.run("test", "-o", tg.path("errors.test.exe"), "-c", "errors")
-	tg.run("tool", "test2json", "-p", "errors", tg.path("errors.test.exe"), "-test.v", "-test.short")
-	tg.grepStdout(`"Package":"errors"`, "did not see JSON output")
-	tg.grepStdout(`"Action":"run"`, "did not see JSON output")
-	tg.grepStdout(`\{"Action":"pass","Package":"errors"\}`, "did not see final pass")
-}
-
 // Issue 22986.
 func TestImportPath(t *testing.T) {
 	tooSlow(t)

src/cmd/go/testdata/script/test_json.txt

@@ -0,0 +1,70 @@
+[gccgo] skip # gccgo does not have standard packages
+[short] skip
+
+env GOCACHE=$WORK/tmp
+
+# Run go test -json on errors empty/pkg and skipper
+# It would be nice to test that the output is interlaced
+# but it seems to be impossible to do that in a short test
+# that isn't also flaky. Just check that we get JSON output.
+go test -json -short -v errors empty/pkg skipper
+
+# Check errors for run action
+stdout '"Package":"errors"'
+stdout '"Action":"run","Package":"errors"'
+
+# Check empty/pkg for output and skip actions
+stdout '"Action":"output","Package":"empty/pkg","Output":".*no test files'
+stdout '"Action":"skip","Package":"empty/pkg"'
+
+# Check skipper for output and skip actions
+stdout '"Action":"output","Package":"skipper","Test":"Test","Output":"--- SKIP:'
+stdout '"Action":"skip","Package":"skipper","Test":"Test"'
+
+# Run go test -json on errors and check it's cached
+go test -json -short -v errors
+stdout '"Action":"output","Package":"errors","Output":".*\(cached\)'
+
+go test -json -bench=NONE -short -v errors
+stdout '"Package":"errors"'
+stdout '"Action":"run"'
+
+# Test running test2json
+go test -o $WORK/tmp/errors.test$GOEXE -c errors
+go tool test2json -p errors $WORK/tmp/errors.test$GOEXE -test.v -test.short
+stdout '"Package":"errors"'
+stdout '"Action":"run"'
+stdout '\{"Action":"pass","Package":"errors"\}'
+
+-- skipper/skip_test.go --
+package skipper
+
+import "testing"
+
+func Test(t *testing.T) {
+	t.Skip("skipping")
+}
+-- empty/pkg/pkg.go --
+package p
+-- empty/pkgtest/pkg.go --
+package p
+-- empty/pkgtest/test_test.go --
+package p
+-- empty/pkgtestxtest/pkg.go --
+package p
+-- empty/pkgtestxtest/test_test.go --
+package p
+-- empty/pkgtestxtest/xtest_test.go --
+package p_test
+-- empty/pkgxtest/pkg.go --
+package p
+-- empty/pkgxtest/xtest_test.go --
+package p_test
+-- empty/test/test_test.go --
+package p
+-- empty/testxtest/test_test.go --
+package p
+-- empty/testxtest/xtest_test.go --
+package p_test
+-- empty/xtest/xtest_test.go --
+package p_test

src/cmd/go/testdata/src/skipper/skip_test.go

@@ -1,7 +0,0 @@
-package skipper
-
-import "testing"
-
-func Test(t *testing.T) {
-	t.Skip("skipping")
-}