Initial project import

tools/v/vlib/cli/flag_test.v

@@ -0,0 +1,171 @@
+import cli
+
+fn test_if_string_flag_parses() {
+	mut flag := cli.Flag{
+		flag: .string
+		name: 'flag'
+	}
+	flag.parse(['-flag', 'value1'], false) or { panic(err) }
+	mut value := flag.get_string() or { panic(err) }
+	assert value == 'value1'
+
+	flag = cli.Flag{
+		flag: .string
+		name: 'flag'
+	}
+	flag.parse(['-flag=value2'], false) or { panic(err) }
+	value = flag.get_string() or { panic(err) }
+	assert value == 'value2'
+
+	flag = cli.Flag{
+		flag: .string_array
+		name: 'flag'
+	}
+	flag.parse(['-flag=value1'], false) or { panic(err) }
+	flag.parse(['-flag=value2'], false) or { panic(err) }
+	mut values := flag.get_strings() or { panic(err) }
+	assert values == ['value1', 'value2']
+}
+
+fn test_if_bool_flag_parses() {
+	mut flag := cli.Flag{
+		flag: .bool
+		name: 'flag'
+	}
+	mut value := false
+	flag.parse(['-flag'], false) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == true
+	flag.parse(['-flag', 'false'], false) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == false
+	flag.parse(['-flag', 'true'], false) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == true
+	flag.parse(['-flag=false'], false) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == false
+	flag.parse(['-flag=true'], false) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == true
+}
+
+fn test_if_int_flag_parses() {
+	mut flag := cli.Flag{
+		flag: .int
+		name: 'flag'
+	}
+
+	mut value := 0
+	flag.parse(['-flag', '42'], false) or { panic(err) }
+	value = flag.get_int() or { panic(err) }
+	assert value == 42
+
+	flag = cli.Flag{
+		flag: .int
+		name: 'flag'
+	}
+
+	flag.parse(['-flag=45'], false) or { panic(err) }
+	value = flag.get_int() or { panic(err) }
+	assert value == 45
+
+	flag = cli.Flag{
+		flag: .int_array
+		name: 'flag'
+	}
+
+	flag.parse(['-flag=42'], false) or { panic(err) }
+	flag.parse(['-flag=45'], false) or { panic(err) }
+	mut values := flag.get_ints() or { panic(err) }
+	assert values == [42, 45]
+}
+
+fn test_if_float_flag_parses() {
+	mut flag := cli.Flag{
+		flag: .float
+		name: 'flag'
+	}
+	mut value := f64(0)
+	flag.parse(['-flag', '3.14158'], false) or { panic(err) }
+	value = flag.get_float() or { panic(err) }
+	assert value == 3.14158
+
+	flag = cli.Flag{
+		flag: .float
+		name: 'flag'
+	}
+
+	flag.parse(['-flag=3.14159'], false) or { panic(err) }
+	value = flag.get_float() or { panic(err) }
+	assert value == 3.14159
+
+	flag = cli.Flag{
+		flag: .float_array
+		name: 'flag'
+	}
+
+	flag.parse(['-flag=3.1'], false) or { panic(err) }
+	flag.parse(['-flag=1.3'], false) or { panic(err) }
+	mut values := flag.get_floats() or { panic(err) }
+	assert values == [3.1, 1.3]
+}
+
+fn test_if_flag_parses_with_abbrev() {
+	mut flag := cli.Flag{
+		flag:   .bool
+		name:   'flag'
+		abbrev: 'f'
+	}
+	mut value := false
+	flag.parse(['--flag'], true) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == true
+
+	value = false
+	flag = cli.Flag{
+		flag:   .bool
+		name:   'flag'
+		abbrev: 'f'
+	}
+	flag.parse(['-f'], true) or { panic(err) }
+	value = flag.get_bool() or { panic(err) }
+	assert value == true
+}
+
+fn test_if_multiple_value_on_single_value() {
+	mut flag := cli.Flag{
+		flag: .float
+		name: 'flag'
+	}
+
+	flag.parse(['-flag', '3.14158'], false) or { panic(err) }
+
+	if _ := flag.parse(['-flag', '3.222'], false) {
+		panic("No multiple value flag don't raise an error!")
+	} else {
+		assert true
+	}
+}
+
+fn test_default_value() {
+	mut flag := cli.Flag{
+		flag:          .float
+		name:          'flag'
+		default_value: ['1.234']
+	}
+
+	flag.parse(['-flag', '3.14158'], false) or { panic(err) }
+	mut value := flag.get_float() or { panic(err) }
+	assert value == 3.14158
+
+	flag = cli.Flag{
+		flag:          .float
+		name:          'flag'
+		default_value: ['1.234']
+	}
+
+	flag.parse([''], false) or { panic(err) }
+	value = flag.get_float() or { panic(err) }
+	assert value == 1.234
+}