opnsense-exporter/opnsense/utils_test.go

package opnsense

import (
	"regexp"
	"testing"

	"github.com/go-kit/log"
)

func TestParsePercentage(t *testing.T) {
	logger := log.NewNopLogger()
	testRegex := regexp.MustCompile(`\d\.\d %`)

	tests := []struct {
		name           string
		value          string
		regex          *regexp.Regexp
		replacePattern string
		valueTypeName  string
		gatewayName    string
		expected       float64
	}{
		{
			name:           "Valid percentage with space",
			value:          "50.5 %",
			regex:          testRegex,
			replacePattern: " %",
			valueTypeName:  "loss",
			gatewayName:    "Gateway1",
			expected:       50.5,
		},
		{
			name:           "Valid percentage with space",
			value:          "5.5 %",
			regex:          testRegex,
			replacePattern: " %",
			valueTypeName:  "loss",
			gatewayName:    "Gateway1",
			expected:       5.5,
		},
		{
			name:           "Invalid percentage format",
			value:          "invalid %",
			regex:          testRegex,
			replacePattern: " %",
			valueTypeName:  "loss",
			gatewayName:    "Gateway1",
			expected:       -1.0,
		},
		{
			name:           "Invalid regex match (no space)",
			value:          "50.5%",
			regex:          testRegex,
			replacePattern: " %",
			valueTypeName:  "loss",
			gatewayName:    "Gateway1",
			expected:       -1,
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			result := parseStringToFloatWithReplace(tc.value, tc.regex, tc.replacePattern, tc.valueTypeName, logger)
			if result != tc.expected {
				t.Errorf("parsePercentage(%s, %v, %s, %s, logger, %s) = %v; want %v",
					tc.value, tc.regex, tc.replacePattern, tc.valueTypeName, tc.gatewayName, result, tc.expected)
			}
		})
	}
}