tests: filter test_ fns with params from the list of automatically run test functions (fix #13443)

vlib/v/ast/ast.v

@@ -460,7 +460,7 @@ pub:
 	is_noreturn     bool        // true, when [noreturn] is used on a fn
 	is_manualfree   bool        // true, when [manualfree] is used on a fn
 	is_main         bool        // true for `fn main()`
-	is_test         bool        // true for `fn test_abcde`
+	is_test         bool        // true for `fn test_abcde() {}`, false for `fn test_abc(x int) {}`, or for fns that do not start with test_
 	is_conditional  bool        // true for `[if abc] fn abc(){}`
 	is_exported     bool        // true for `[export: 'exact_C_name']`
 	is_keep_alive   bool        // passed memory must not be freed (by GC) before function returns

vlib/v/checker/fn.v

@@ -270,7 +270,8 @@ fn (mut c Checker) fn_decl(mut node ast.FnDecl) {
 		}
 	}
 	// TODO c.pref.is_vet
-	if node.language == .v && !node.is_method && node.is_test {
+	if c.file.is_test && (!node.is_method && (node.short_name.starts_with('test_')
+		|| node.short_name.starts_with('testsuite_'))) {
 		if !c.pref.is_test {
 			// simple heuristic
 			for st in node.stmts {
@@ -285,6 +286,7 @@ fn (mut c Checker) fn_decl(mut node ast.FnDecl) {
 		if node.params.len != 0 {
 			c.error('test functions should take 0 parameters', node.pos)
 		}
+
 		if node.return_type != ast.void_type_idx
 			&& node.return_type.clear_flag(.optional) != ast.void_type_idx {
 			c.error('test functions should either return nothing at all, or be marked to return `?`',

vlib/v/gen/c/cgen.v

@@ -6304,6 +6304,9 @@ fn (g &Gen) get_all_test_function_names() []string {
 	mut tsuite_begin := ''
 	mut tsuite_end := ''
 	for _, f in g.table.fns {
+		if !f.is_test {
+			continue
+		}
 		if f.name.ends_with('.testsuite_begin') {
 			tsuite_begin = f.name
 			continue

vlib/v/gen/js/js.v

@@ -383,6 +383,9 @@ fn (g &JsGen) get_all_test_function_names() []string {
 	mut tsuite_begin := ''
 	mut tsuite_end := ''
 	for _, f in g.table.fns {
+		if !f.is_test {
+			continue
+		}
 		if f.name.ends_with('.testsuite_begin') {
 			tsuite_begin = f.name
 			continue

vlib/v/parser/fn.v

@@ -361,10 +361,8 @@ fn (mut p Parser) fn_decl() ast.FnDecl {
 	end_pos := p.prev_tok.pos()
 	short_fn_name := name
 	is_main := short_fn_name == 'main' && p.mod == 'main'
-	mut is_test := (short_fn_name.starts_with('test_') || short_fn_name.starts_with('testsuite_'))
-		&& (p.file_base.ends_with('_test.v')
-		|| p.file_base.all_before_last('.v').all_before_last('.').ends_with('_test'))
-
+	is_test := (!is_method && params.len == 0) && p.inside_test_file
+		&& (short_fn_name.starts_with('test_') || short_fn_name.starts_with('testsuite_'))
 	file_mode := p.file_backend_mode
 	// Register
 	if is_method {

vlib/v/parser/parser.v

@@ -162,19 +162,18 @@ pub fn (mut p Parser) set_path(path string) {
 	p.file_name = path
 	p.file_base = os.base(path)
 	p.file_name_dir = os.dir(path)
-	if p.file_name_dir.contains('vlib') {
-		p.inside_vlib_file = true
-	}
+	p.inside_vlib_file = p.file_name_dir.contains('vlib')
+	p.inside_test_file = p.file_base.ends_with('_test.v') || p.file_base.ends_with('_test.vv')
+		|| p.file_base.all_before_last('.v').all_before_last('.').ends_with('_test')
+
 	hash := fnv1a.sum64_string(path)
 	p.unique_prefix = hash.hex_full()
-	if p.file_base.ends_with('_test.v') || p.file_base.ends_with('_test.vv') {
-		p.inside_test_file = true
-	}
+
+	p.file_backend_mode = .v
 	before_dot_v := path.all_before_last('.v') // also works for .vv and .vsh
 	language := before_dot_v.all_after_last('.')
 	language_with_underscore := before_dot_v.all_after_last('_')
 	if language == before_dot_v && language_with_underscore == before_dot_v {
-		p.file_backend_mode = .v
 		return
 	}
 	actual_language := if language == before_dot_v { language_with_underscore } else { language }

vlib/v/tests/run_project_folders/issue_13443_test_prefixed_fns_in_normal_v_files/any_test.v

@@ -0,0 +1,5 @@
+module main
+
+fn test_any_name() {
+	println(@FN)
+}

vlib/v/tests/run_project_folders/issue_13443_test_prefixed_fns_in_normal_v_files/main.v

@@ -0,0 +1,13 @@
+fn main() {
+	println(@FN)
+	println('OK')
+}
+
+fn test_fn_in_normal_v_file() {
+	println(@FN)
+}
+
+fn test_any(any_name int) int {
+	println(@FN)
+	return 0
+}