feat: modernize tests and update metadata

Reordered imports in test files and replaced ioutil.ReadAll with io.ReadAll for compatibility with modern Go standards. Improved error handling in defer statements for better clarity. Updated copyright year in LICENSE and cleaned up an obsolete build tag in secp256k1_cgo.go.

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Weiliang Li
+Copyright (c) 2024 Weiliang Li
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -18,4 +18,4 @@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
+SOFTWARE.

ecies_test.go

@@ -4,7 +4,6 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"io"
-	"io/ioutil"
 	"math/big"
 	"net/http"
 	"net/url"
@@ -140,13 +139,15 @@ func TestDecryptAgainstPythonVersion(t *testing.T) {
 		return
 	}
 
-	defer resp.Body.Close()
+	defer func() {
+		_ = resp.Body.Close()
+	}()
 
 	if !assert.Equal(t, http.StatusCreated, resp.StatusCode) {
 		return
 	}
 
-	hexBytes, err := ioutil.ReadAll(resp.Body)
+	hexBytes, err := io.ReadAll(resp.Body)
 	if !assert.NoError(t, err) {
 		return
 	}
@@ -184,13 +185,15 @@ func TestEncryptAgainstPythonVersion(t *testing.T) {
 		return
 	}
 
-	defer resp.Body.Close()
+	defer func() {
+		_ = resp.Body.Close()
+	}()
 
 	if !assert.Equal(t, http.StatusCreated, resp.StatusCode) {
 		return
 	}
 
-	plaintext, err := ioutil.ReadAll(resp.Body)
+	plaintext, err := io.ReadAll(resp.Body)
 	if !assert.NoError(t, err) {
 		return
 	}

privatekey_test.go

@@ -2,8 +2,9 @@ package eciesgo
 
 import (
 	"crypto/subtle"
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 const privkeyBase = "f0e5b2c3ba4df3fdb3ecea30d0e60c4e4a31d1ba928f51783ae18bbd3cada572"

publickey_test.go

@@ -1,8 +1,9 @@
 package eciesgo
 
 import (
-	"github.com/stretchr/testify/assert"
 	"testing"
+
+	"github.com/stretchr/testify/assert"
 )
 
 func TestNewPublicKeyFromHex(t *testing.T) {

secp256k1_cgo.go

@@ -1,5 +1,4 @@
 //go:build cgo && !ecies_test_race
-// +build cgo,!ecies_test_race
 
 package eciesgo