From 81e8b0422558af7894837ff387751a6a52fbd7c3 Mon Sep 17 00:00:00 2001
From: ICHINOSE Shogo <shogo82148@gmail.com>
Date: Fri, 22 Sep 2023 20:02:05 +0900
Subject: [PATCH 1/2] run test on 32-bit platforms

---
 .github/workflows/test.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f3bc013..719d3f7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,11 +19,19 @@ jobs:
           - "1.19"
           - "1.18"
         goexperiment: [""]
+        goarch:
+          - amd64
         include:
           # test with GOEXPERIMENT=loopvar
           # https://github.com/golang/go/wiki/LoopvarExperiment
           - go: "1.21"
             goexperiment: "loopvar"
+            goarch: amd64
+
+          # test on 32-bit platforms
+          - go: "1.21"
+            goexperiment: "loopvar"
+            goarch: "386"
 
     steps:
       - uses: actions/checkout@v4
@@ -37,6 +45,7 @@ jobs:
           go test -v -coverprofile=profile.cov ./...
         env:
           GOEXPERIMENT: ${{ matrix.goexperiment }}
+          GOARCH: ${{ matrix.goarch }}
 
       - uses: shogo82148/actions-goveralls@v1
         with:

From f99ae5cd55ef1d87359d2e63f0959a658385efe4 Mon Sep 17 00:00:00 2001
From: ICHINOSE Shogo <shogo82148@gmail.com>
Date: Fri, 22 Sep 2023 20:10:58 +0900
Subject: [PATCH 2/2] fix compile errors on 32-bit platforms

---
 internal/jsonutils/decode_test.go | 12 ++++++------
 jwk/rsa.go                        |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/internal/jsonutils/decode_test.go b/internal/jsonutils/decode_test.go
index b6a70be..98d5f1d 100644
--- a/internal/jsonutils/decode_test.go
+++ b/internal/jsonutils/decode_test.go
@@ -582,8 +582,8 @@ func TestDecoder_GetInt64(t *testing.T) {
 	if !ok {
 		t.Error("want ok, but not")
 	}
-	if v != 9223372036854775807 {
-		t.Errorf("unexpected value, want %d, got %d", 9223372036854775807, v)
+	if got, want := v, int64(9223372036854775807); got != want {
+		t.Errorf("unexpected value, want %d, got %d", want, got)
 	}
 	if err := d.Err(); err != nil {
 		t.Fatal(err)
@@ -594,8 +594,8 @@ func TestDecoder_GetInt64(t *testing.T) {
 	if !ok {
 		t.Error("want ok, but not")
 	}
-	if v != 9007199254740991 {
-		t.Errorf("unexpected value, want %d, got %d", 9007199254740991, v)
+	if got, want := v, int64(9007199254740991); got != want {
+		t.Errorf("unexpected value, want %d, got %d", want, got)
 	}
 	if err := d.Err(); err != nil {
 		t.Fatal(err)
@@ -654,8 +654,8 @@ func TestDecoder_MustInt64(t *testing.T) {
 
 	d = NewDecoder("jsonutils", raw)
 	v := d.MustInt64("integer")
-	if v != 9223372036854775807 {
-		t.Errorf("unexpected value: want %d, got %d", 9223372036854775807, v)
+	if got, want := v, int64(9223372036854775807); got != want {
+		t.Errorf("unexpected value: want %d, got %d", want, got)
 	}
 	if err := d.Err(); err != nil {
 		t.Fatal(err)
diff --git a/jwk/rsa.go b/jwk/rsa.go
index 97f0470..400c3ea 100644
--- a/jwk/rsa.go
+++ b/jwk/rsa.go
@@ -165,7 +165,7 @@ func validateRSAPublicKey(key *rsa.PublicKey) error {
 	if key.N == nil || key.N.Sign() <= 0 {
 		return errors.New("jwk: invalid rsa modulus")
 	}
-	if key.E < 2 || key.E > 1<<32-1 {
+	if key.E < 2 || key.E > math.MaxInt32 {
 		return errors.New("jwk: invalid rsa public exponent")
 	}
 	return nil