chore: make testing appid configurable through env-var

Author: Kagashino

README.md

@@ -82,8 +82,24 @@ log.Println("[DEBUG] the message and some import values: %v", importantValues)
 ### Test
 
 The quicker way for development and debug is writing test cases.
-How to trigger running the test cases, please refer the `test.sh` script.
-How to write test cases, check the `xxx_test.go` files.
+
+Config environment variables:
+```
+export TF_ACC=true
+```
+
+Config your appid for COS bucket testing
+```
+export TENCENTCLOUD_APPID=1234567890
+```
+
+This example show how to test single test function:
+```
+cd tencentcloud
+go test -i; go test -test.run TestAccTencentCloudNatGateway_basic -v
+```
+
+To write test cases, check the `xxx_test.go` files for more reference.
 
 ### Avoid ``terrafrom init``
 

tencentcloud/basic_test.go

@@ -1,13 +1,14 @@
 package tencentcloud
 
+import "os"
 /*
 ---------------------------------------------------
 If you want to run through the test cases,
 the following must be changed to your resource id.
 ---------------------------------------------------
 */
 
-const appid string = "1259649581"
+var appid string = os.Getenv("TENCENTCLOUD_APPID")
 
 const (
 	defaultRegion      = "ap-guangzhou"