From 8a103d5cb21156fc5da30818ffe54023e0a80823 Mon Sep 17 00:00:00 2001
From: Jake Wang <jake.wang@argonlabs.tech>
Date: Tue, 8 Sep 2026 11:54:38 -0400
Subject: [PATCH] assert: accept full HTTP success and redirect status classes

---
 assert/http_assertions.go      |  4 ++--
 assert/http_assertions_test.go | 37 ++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/assert/http_assertions.go b/assert/http_assertions.go
index 5a6bb75f2..afb7d7e32 100644
--- a/assert/http_assertions.go
+++ b/assert/http_assertions.go
@@ -35,7 +35,7 @@ func HTTPSuccess(t TestingT, handler http.HandlerFunc, method, url string, value
 		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err), msgAndArgs...)
 	}
 
-	isSuccessCode := code >= http.StatusOK && code <= http.StatusPartialContent
+	isSuccessCode := code >= http.StatusOK && code < http.StatusMultipleChoices
 	if !isSuccessCode {
 		Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), code), msgAndArgs...)
 	}
@@ -57,7 +57,7 @@ func HTTPRedirect(t TestingT, handler http.HandlerFunc, method, url string, valu
 		Fail(t, fmt.Sprintf("Failed to build test request, got error: %s", err), msgAndArgs...)
 	}
 
-	isRedirectCode := code >= http.StatusMultipleChoices && code <= http.StatusTemporaryRedirect
+	isRedirectCode := code >= http.StatusMultipleChoices && code < http.StatusBadRequest
 	if !isRedirectCode {
 		Fail(t, fmt.Sprintf("Expected HTTP redirect status code for %q but received %d", url+"?"+values.Encode(), code), msgAndArgs...)
 	}
diff --git a/assert/http_assertions_test.go b/assert/http_assertions_test.go
index a1dd4540d..ebc9a92f7 100644
--- a/assert/http_assertions_test.go
+++ b/assert/http_assertions_test.go
@@ -86,6 +86,43 @@ func TestHTTPRedirect(t *testing.T) {
 	assert.True(mockT4.Failed())
 }
 
+func TestHTTPStatusClasses(t *testing.T) {
+	t.Parallel()
+
+	for _, tt := range []struct {
+		code     int
+		success  bool
+		redirect bool
+	}{
+		{199, false, false},
+		{http.StatusOK, true, false},
+		{http.StatusPartialContent, true, false},
+		{http.StatusMultiStatus, true, false},
+		{http.StatusAlreadyReported, true, false},
+		{http.StatusIMUsed, true, false},
+		{299, true, false},
+		{http.StatusMultipleChoices, false, true},
+		{http.StatusTemporaryRedirect, false, true},
+		{http.StatusPermanentRedirect, false, true},
+		{399, false, true},
+		{http.StatusBadRequest, false, false},
+	} {
+		t.Run(fmt.Sprint(tt.code), func(t *testing.T) {
+			handler := func(w http.ResponseWriter, r *http.Request) {
+				w.WriteHeader(tt.code)
+			}
+
+			successT := new(mockTestingT)
+			Equal(t, tt.success, HTTPSuccess(successT, handler, "GET", "/", nil), "HTTPSuccess")
+			Equal(t, !tt.success, successT.Failed(), "HTTPSuccess failure")
+
+			redirectT := new(mockTestingT)
+			Equal(t, tt.redirect, HTTPRedirect(redirectT, handler, "GET", "/", nil), "HTTPRedirect")
+			Equal(t, !tt.redirect, redirectT.Failed(), "HTTPRedirect failure")
+		})
+	}
+}
+
 func TestHTTPError(t *testing.T) {
 	t.Parallel()