Request buffering middleware

provider/consulcatalog/consul_catalog_config_test.go

@@ -1002,6 +1002,52 @@ func TestProviderGetHealthCheck(t *testing.T) {
 	}
 }
 
+func TestProviderGetBuffering(t *testing.T) {
+	p := &Provider{
+		Prefix: "traefik",
+	}
+
+	testCases := []struct {
+		desc     string
+		tags     []string
+		expected *types.Buffering
+	}{
+		{
+			desc:     "should return nil when no tags",
+			tags:     []string{},
+			expected: nil,
+		},
+		{
+			desc: "should return a struct when has proper tags",
+			tags: []string{
+				label.TraefikBackendBufferingMaxResponseBodyBytes + "=10485760",
+				label.TraefikBackendBufferingMemResponseBodyBytes + "=2097152",
+				label.TraefikBackendBufferingMaxRequestBodyBytes + "=10485760",
+				label.TraefikBackendBufferingMemRequestBodyBytes + "=2097152",
+				label.TraefikBackendBufferingRetryExpression + "=IsNetworkError() && Attempts() <= 2",
+			},
+			expected: &types.Buffering{
+				MaxResponseBodyBytes: 10485760,
+				MemResponseBodyBytes: 2097152,
+				MaxRequestBodyBytes:  10485760,
+				MemRequestBodyBytes:  2097152,
+				RetryExpression:      "IsNetworkError() && Attempts() <= 2",
+			},
+		},
+	}
+
+	for _, test := range testCases {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			result := p.getBuffering(test.tags)
+
+			assert.Equal(t, test.expected, result)
+		})
+	}
+}
+
 func TestProviderGetRedirect(t *testing.T) {
 	p := &Provider{
 		Prefix: "traefik",