tools: make `v test vlib` and `v test-self` skip _test.js.v files, when `node` is not installed

cmd/tools/modules/testing/common.v

@@ -19,6 +19,10 @@ pub const hide_oks = os.getenv('VTEST_HIDE_OK') == '1'
 
 pub const fail_fast = os.getenv('VTEST_FAIL_FAST') == '1'
 
+pub const is_node_present = os.execute('node --version').exit_code == 0
+
+pub const all_processes = os.execute('ps ax').output.split_any('\r\n')
+
 pub struct TestSession {
 pub mut:
 	files         []string
@@ -551,3 +555,12 @@ pub fn get_test_details(file string) TestDetails {
 	}
 	return res
 }
+
+pub fn find_started_process(pname string) ?string {
+	for line in testing.all_processes {
+		if line.contains(pname) {
+			return line
+		}
+	}
+	return error('could not find process matching $pname')
+}

cmd/tools/vtest-self.v

@@ -147,12 +147,22 @@ fn main() {
 	cmd_prefix := args_string.all_before('test-self')
 	title := 'testing vlib'
 	mut all_test_files := os.walk_ext(os.join_path(vroot, 'vlib'), '_test.v')
-	all_test_files << os.walk_ext(os.join_path(vroot, 'vlib'), '_test.js.v')
+	test_js_files := os.walk_ext(os.join_path(vroot, 'vlib'), '_test.js.v')
+	all_test_files << test_js_files
 	testing.eheader(title)
 	mut tsession := testing.new_test_session(cmd_prefix, true)
 	tsession.files << all_test_files.filter(!it.contains('testdata' + os.path_separator))
 	tsession.skip_files << skip_test_files
 
+	if !testing.is_node_present {
+		testroot := vroot + os.path_separator
+		tsession.skip_files << test_js_files.map(it.replace(testroot, ''))
+	}
+	testing.find_started_process('mysqld') or {
+		tsession.skip_files << 'vlib/mysql/mysql_orm_test.v'
+	}
+	testing.find_started_process('postgres') or { tsession.skip_files << 'vlib/pg/pg_orm_test.v' }
+
 	if github_job == 'windows-tcc' {
 		// TODO: fix these ASAP
 		tsession.skip_files << 'vlib/net/tcp_test.v'

cmd/tools/vtest.v

@@ -105,17 +105,34 @@ pub fn should_test_dir(path string, backend string) ([]string, []string) { // re
 }
 
 enum ShouldTestStatus {
-	test // do test
-	skip
-	ignore
+	test // do test, print OK or FAIL, depending on if it passes
+	skip // print SKIP for the test
+	ignore // just ignore the file, so it will not be printed at all in the list of tests
 }
 
 fn should_test(path string, backend string) ShouldTestStatus {
+	if path.ends_with('mysql_orm_test.v') {
+		testing.find_started_process('mysqld') or { return .skip }
+	}
+	if path.ends_with('pg_orm_test.v') {
+		testing.find_started_process('postgres') or { return .skip }
+	}
+	if path.ends_with('onecontext_test.v') {
+		return .skip
+	}
+	$if tinyc {
+		if path.ends_with('naked_attr_test.amd64.v') {
+			return .skip
+		}
+	}
 	if path.ends_with('_test.v') {
 		return .test
 	}
 	if path.ends_with('_test.js.v') {
-		return .test
+		if testing.is_node_present {
+			return .test
+		}
+		return .skip
 	}
 	if path.ends_with('.v') && path.count('.') == 2 {
 		if !path.all_before_last('.v').all_before_last('.').ends_with('_test') {