chore: 并入 iotlcm-upstream-chan 历史到 upstream-chan/（原提交 1e74497）

upstream-chan/internal/logic/upstreamapi/channel_cache_test.go

@@ -0,0 +1,17 @@
+package upstreamapi
+
+import "testing"
+
+func TestICCIDFromChannelCacheKey(t *testing.T) {
+	tests := []struct{ key, want string }{
+		{"sim:chan:iccid:89860000000000000004", "89860000000000000004"},
+		{"sim:chan:iccid:8986000000000000007X", "8986000000000000007X"},
+		{"sim:chan:iccid:", ""},
+		{"unrelated:89860000000000000004", ""},
+	}
+	for _, tt := range tests {
+		if got := iccidFromChannelCacheKey(tt.key); got != tt.want {
+			t.Errorf("iccidFromChannelCacheKey(%q) = %q, want %q", tt.key, got, tt.want)
+		}
+	}
+}