Function TestRegex

ext/regex_test.go:26–125

(t *testing.T)

)

func TestRegex(t *testing.T) {
	regexTests := []struct {
		expr string
	}{
		// Tests for replace Function
		{expr: "regex.replace('abc', '^', 'start_') == 'start_abc'"},
		{expr: "regex.replace('abc', '$', '_end') == 'abc_end'"},
		{expr: `regex.replace('a-b', r'\b', '|') == '|a|-|b|'`},
		{expr: `regex.replace('foo bar', '(fo)o (ba)r', r'\2 \1') == 'ba fo'`},
		{expr: `regex.replace('foo bar', 'foo', r'\\') == '\\ bar'`},
		{expr: "regex.replace('banana', 'ana', 'x') == 'bxna'"},
		{expr: `regex.replace('abc', 'b(.)', r'x\1') == 'axc'`},
		{expr: "regex.replace('hello world hello', 'hello', 'hi') == 'hi world hi'"},
		{expr: `regex.replace('ac', 'a(b)?c', r'[\1]') == '[]'`},
		{expr: "regex.replace('apple pie', 'p', 'X') == 'aXXle Xie'"},
		{expr: `regex.replace('remove all spaces', r'\s', '') == 'removeallspaces'`},
		{expr: `regex.replace('digit:99919291992', r'\d+', '3') == 'digit:3'`},
		{expr: `regex.replace('foo bar baz', r'\w+', r'(\0)') == '(foo) (bar) (baz)'`},
		{expr: "regex.replace('', 'a', 'b') == ''"},
		{expr: `regex.replace('User: Alice, Age: 30', r'User: (?P<name>\w+), Age: (?P<age>\d+)', '${name} is ${age} years old') == '${name} is ${age} years old'`},
		{expr: `regex.replace('User: Alice, Age: 30', r'User: (?P<name>\w+), Age: (?P<age>\d+)', r'\1 is \2 years old') == 'Alice is 30 years old'`},
		{expr: "regex.replace('hello ☃', '☃', '❄') == 'hello ❄'"},
		{expr: `regex.replace('id=123', r'id=(?P<value>\d+)', r'value: \1') == 'value: 123'`},
		{expr: "regex.replace('banana', 'a', 'x') == 'bxnxnx'"},
		{expr: `regex.replace(regex.replace('%(foo) %(bar) %2', r'%\((\w+)\)', r'${\1}'),r'%(\d+)', r'$\1') == '${foo} ${bar} $2'`},

		// Tests for replace Function with count variable
		{expr: "regex.replace('banana', 'a', 'x', 0) == 'banana'"},
		{expr: "regex.replace('banana', 'a', 'x', 1) == 'bxnana'"},
		{expr: "regex.replace('banana', 'a', 'x', 2) == 'bxnxna'"},
		{expr: "regex.replace('banana', 'a', 'x', 100) == 'bxnxnx'"},
		{expr: "regex.replace('banana', 'a', 'x', -1) == 'bxnxnx'"},
		{expr: "regex.replace('banana', 'a', 'x', -100) == 'bxnxnx'"},
		{expr: `regex.replace('cat-dog dog-cat cat-dog dog-cat', '(cat)-(dog)', r'\2-\1', 1) == 'dog-cat dog-cat cat-dog dog-cat'`},
		{expr: `regex.replace('cat-dog dog-cat cat-dog dog-cat', '(cat)-(dog)', r'\2-\1', 2) == 'dog-cat dog-cat dog-cat dog-cat'`},
		{expr: `regex.replace('a.b.c', r'\.', '-', 1) == 'a-b.c'`},
		{expr: `regex.replace('a.b.c', r'\.', '-', -1) == 'a-b-c'`},
		{expr: `regex.replace('abc def', r'(abc)', r'\\1') == r'\1 def'`},
		{expr: `regex.replace('abc def', r'(abc)', r'\\2') == r'\2 def'`},
		{expr: `regex.replace('abc def', r'(abc)', r'\\{word}') == '\\{word} def'`},
		{expr: `regex.replace('abc def', r'(abc)', r'\\word') == '\\word def'`},

		// Tests for extract Function
		{expr: "regex.extract('hello world', 'hello(.*)') == optional.of(' world')"},
		{expr: `regex.extract('item-A, item-B', r'item-(\w+)') == optional.of('A')`},
		{expr: `regex.extract('The color is red', r'The color is (\w+)') == optional.of('red')`},
		{expr: `regex.extract('The color is red', r'The color is \w+') == optional.of('The color is red')`},
		{expr: "regex.extract('brand', 'brand') == optional.of('brand')"},
		{expr: "regex.extract('hello world', 'goodbye (.*)') == optional.none()"},
		{expr: "regex.extract('HELLO', 'hello') == optional.none()"},
		{expr: `regex.extract('', r'\w+') == optional.none()`},
		{expr: "regex.extract('4122345432', '22').or(optional.of('777')) == optional.of('22')"},
		{expr: "regex.extract('4122345432', '22').orValue('777') == '22'"},

		// Tests for extractAll Function
		{expr: "regex.extractAll('id:123, id:456', 'assa') == []"},
		{expr: `regex.extractAll('id:123, id:456', r'id:\d+') == ['id:123', 'id:456']`},
		{expr: `regex.extractAll('Files: f_1.txt, f_2.csv', r'f_(\d+)') == ['1', '2']`},