v.util.vtest: extract the common code for VTEST_ONLY in a single place

cmd/tools/modules/testing/common.v

@@ -6,6 +6,7 @@ import term
 import benchmark
 import sync
 import v.pref
+import v.util.vtest
 
 pub struct TestMessageHandler {
 mut:
@@ -69,7 +70,6 @@ pub fn (mut ts TestSession) test() {
 	//
 	ts.init()
 	mut remaining_files := []string{}
-	vtest_only := os.getenv('VTEST_ONLY').split(',')
 	for dot_relative_file in ts.files {
 		relative_file := dot_relative_file.replace('./', '')
 		file := os.real_path(relative_file)
@@ -93,20 +93,9 @@ pub fn (mut ts TestSession) test() {
 				continue
 			}
 		}
-		if vtest_only.len > 0 {
-			mut found := 0
-			for substring in vtest_only {
-				if file.contains(substring) {
-					found++
-					break
-				}
-			}
-			if found == 0 {
-				continue
-			}
-		}
 		remaining_files << dot_relative_file
 	}
+	remaining_files = vtest.filter_vtest_only(remaining_files, fix_slashes: false)
 	ts.files = remaining_files
 	ts.benchmark.set_total_expected_steps(remaining_files.len)
 	mut pool_of_test_runners := sync.new_pool_processor({

vlib/v/compiler_errors_test.v

@@ -1,6 +1,7 @@
 import os
 import term
 import v.util
+import v.util.vtest
 
 fn test_all() {
 	mut total_errors := 0
@@ -35,25 +36,10 @@ fn get_tests_in_dir(dir string) []string {
 }
 
 fn check_path(vexe, dir, voptions, result_extension string, tests []string) int {
-	vtest_only := os.getenv('VTEST_ONLY').split(',')
 	mut nb_fail := 0
-	mut paths := []string{}
-	for test in tests {
-		path := os.join_path(dir, test).replace('\\', '/')
-		if vtest_only.len > 0 {
-			mut found := 0
-			for substring in vtest_only {
-				if path.contains(substring) {
-					found++
-					break
-				}
-			}
-			if found == 0 {
-				continue
-			}
-		}
-		paths << path
-	}
+	paths := vtest.filter_vtest_only(tests, {
+		basepath: dir
+	})
 	for path in paths {
 		program := path.replace('.vv', '.v')
 		print(path + ' ')

vlib/v/tests/inout/compiler_test.v

@@ -1,6 +1,7 @@
 import os
 import term
 import v.util
+import v.util.vtest
 
 fn test_all() {
 	mut total_errors := 0
@@ -18,24 +19,9 @@ fn test_all() {
 		println('no compiler tests found')
 		assert false
 	}
-	vtest_only := os.getenv('VTEST_ONLY').split(',')
-	mut paths := []string{}
-	for test in tests {
-		path := os.join_path(dir, test).replace('\\', '/')
-		if vtest_only.len > 0 {
-			mut found := 0
-			for substring in vtest_only {
-				if path.contains(substring) {
-					found++
-					break
-				}
-			}
-			if found == 0 {
-				continue
-			}
-		}
-		paths << path
-	}
+	paths := vtest.filter_vtest_only(tests, {
+		basepath: dir
+	})
 	for path in paths {
 		print(path + ' ')
 		program := path.replace('.vv', '.v')

vlib/v/tests/valgrind/valgrind_test.v

@@ -2,6 +2,7 @@ import os
 import term
 import benchmark
 import v.util
+import v.util.vtest
 
 const (
 	skip_valgrind_files = [
@@ -9,9 +10,10 @@ const (
 	]
 )
 
-[if verbose]
 fn vprintln(s string) {
+	$if verbose ? {
 		eprintln(s)
+	}
 }
 
 fn test_all() {
@@ -29,7 +31,8 @@ fn test_all() {
 	eprintln(term.header(bench_message, '-'))
 	vexe := os.getenv('VEXE')
 	vroot := os.dir(vexe)
-	dir := os.join_path(vroot, 'vlib/v/tests/valgrind')
+	valgrind_test_path := 'vlib/v/tests/valgrind'
+	dir := os.join_path(vroot, valgrind_test_path)
 	files := os.ls(dir) or {
 		panic(err)
 	}
@@ -38,20 +41,24 @@ fn test_all() {
 	os.mkdir_all(wrkdir)
 	os.chdir(wrkdir)
 	//
-	tests := files.filter(it.ends_with('.vv'))
+	tests := vtest.filter_vtest_only(files.filter(it.ends_with('.vv')), {
+		basepath: valgrind_test_path
+	})
 	bench.set_total_expected_steps(tests.len)
-	for test in tests {
+	for dir_test_path in tests {
 		bench.step()
-		test_basename := os.file_name(test).replace('.vv', '')
+		test_basename := os.file_name(dir_test_path).replace('.vv', '')
 		v_filename := '$wrkdir/${test_basename}.v'
 		exe_filename := '$wrkdir/$test_basename'
-		full_test_path := os.real_path(os.join_path(dir, test))
-		dir_test_path := full_test_path.replace(vroot + '/', '')
+		full_test_path := os.real_path(os.join_path(vroot, dir_test_path))
+		//
 		if dir_test_path in skip_valgrind_files {
+			$if !noskip ? {
 				bench.skip()
 				eprintln(bench.step_message_skip(dir_test_path))
 				continue
 			}
+		}
 		vprintln('$dir_test_path => $v_filename')
 		//
 		vprintln('cp $full_test_path $v_filename')

vlib/v/util/util.v

@@ -12,9 +12,7 @@ pub const (
 
 // math.bits is needed by strconv.ftoa
 pub const (
-	builtin_module_parts = ['math.bits', 'strconv', 'strconv.ftoa', 'hash', 'strings',
-		'builtin',
-	]
+	builtin_module_parts = ['math.bits', 'strconv', 'strconv.ftoa', 'hash', 'strings', 'builtin']
 )
 
 pub const (

vlib/v/util/vtest/vtest.v

@@ -0,0 +1,36 @@
+module vtest
+
+import os
+
+pub struct FilterVTestConfig {
+	basepath    string = ''
+	fix_slashes bool = true
+}
+
+pub fn filter_vtest_only(paths []string, config FilterVTestConfig) []string {
+	mut res := []string{}
+	patterns := os.getenv('VTEST_ONLY').split(',')
+	for relative_path in paths {
+		mut file := relative_path
+		if config.basepath.len > 0 {
+			file = os.join_path(config.basepath, file)
+		}
+		if config.fix_slashes {
+			file = file.replace('\\', '/')
+		}
+		if patterns.len != 0 {
+			mut found := 0
+			for okpat in patterns {
+				if file.contains(okpat) {
+					found++
+					break
+				}
+			}
+			if found == 0 {
+				continue
+			}
+		}
+		res << file
+	}
+	return res
+}

vlib/v/vet/vet_test.v

@@ -1,5 +1,6 @@
 import os
 import term
+import v.util.vtest
 
 fn test_vet() {
 	vexe := os.getenv('VEXE')
@@ -20,25 +21,10 @@ fn get_tests_in_dir(dir string) []string {
 }
 
 fn check_path(vexe, dir string, tests []string) int {
-	vtest_only := os.getenv('VTEST_ONLY').split(',')
 	mut nb_fail := 0
-	mut paths := []string{}
-	for test in tests {
-		path := os.join_path(dir, test).replace('\\', '/')
-		if vtest_only.len > 0 {
-			mut found := 0
-			for substring in vtest_only {
-				if path.contains(substring) {
-					found++
-					break
-				}
-			}
-			if found == 0 {
-				continue
-			}
-		}
-		paths << path
-	}
+	paths := vtest.filter_vtest_only(tests, {
+		basepath: dir
+	})
 	for path in paths {
 		program := path.replace('.vv', '.v')
 		print(path + ' ')