test(cors): enhance CORS wildcard handling tests (#145)

- Import the `reflect` package in `cors_test.go`
- Add new test cases for parsing wildcard rules in CORS configuration
- Implement tests to check for panic on multiple wildcards and validate expected results for various wildcard scenarios

ref: #106

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

cors_test.go

@@ -4,6 +4,7 @@ import (
  "context"
  "net/http"
  "net/http/httptest"
+ "reflect"
  "strings"
  "testing"
  "time"
@@ -462,3 +463,93 @@ func TestParseWildcardRules_InvalidWildcard(t *testing.T) {
  config.parseWildcardRules()
  })
 }
+
+func TestParseWildcardRules(t *testing.T) {
+ tests := []struct {
+ name string
+ config Config
+ expectedResult [][]string
+ expectPanic bool
+ }{
+ {
+ name: "Wildcard not allowed",
+ config: Config{
+ AllowWildcard: false,
+ AllowOrigins: []string{"http://example.com", "https://*.domain.com"},
+ },
+ expectedResult: nil,
+ expectPanic: false,
+ },
+ {
+ name: "No wildcards",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"http://example.com", "https://example.com"},
+ },
+ expectedResult: nil,
+ expectPanic: false,
+ },
+ {
+ name: "Single wildcard at the end",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"http://*.example.com"},
+ },
+ expectedResult: [][]string{{"http://", ".example.com"}},
+ expectPanic: false,
+ },
+ {
+ name: "Single wildcard at the beginning",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"*.example.com"},
+ },
+ expectedResult: [][]string{{"*", ".example.com"}},
+ expectPanic: false,
+ },
+ {
+ name: "Single wildcard in the middle",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"http://example.*.com"},
+ },
+ expectedResult: [][]string{{"http://example.", ".com"}},
+ expectPanic: false,
+ },
+ {
+ name: "Multiple wildcards should panic",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"http://*.*.com"},
+ },
+ expectedResult: nil,
+ expectPanic: true,
+ },
+ {
+ name: "Single wildcard in the end",
+ config: Config{
+ AllowWildcard: true,
+ AllowOrigins: []string{"http://example.com/*"},
+ },
+ expectedResult: [][]string{{"http://example.com/", "*"}},
+ expectPanic: false,
+ },
+ }
+
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ if tt.expectPanic {
+ defer func() {
+ if r := recover(); r == nil {
+ t.Errorf("The code did not panic")
+ }
+ }()
+ }
+
+ result := tt.config.parseWildcardRules()
+ if !tt.expectPanic && !reflect.DeepEqual(result, tt.expectedResult) {
+ t.Errorf("Name: %v, Expected %v, got %v", tt.name, tt.expectedResult, result)
+ }
+ })
+ }
+}