modify ProcessCredentialsProviderTest to correctly interpret session tokens in script

fix RANDOM function in bat script for unit test

Author: cenedhryn

core/auth/src/test/java/software/amazon/awssdk/auth/credentials/ProcessCredentialsProviderTest.java

@@ -37,6 +37,7 @@
 public class ProcessCredentialsProviderTest {
 
     private final static String PROCESS_RESOURCE_PATH = "/resources/process/";
+    private final static String RANDOM_SESSION_TOKEN = "RANDOM_TOKEN";
     private static String scriptLocation;
 
     @BeforeClass
@@ -102,8 +103,10 @@ public void resultsAreCached() {
     public void expirationBufferOverrideIsApplied() {
         ProcessCredentialsProvider credentialsProvider =
                 ProcessCredentialsProvider.builder()
-                                          .command(scriptLocation + " accessKeyId secretAccessKey sessionToken " +
-                                                   DateUtils.formatIso8601Date(Instant.now().plusSeconds(20)))
+                                          .command(String.format("%s accessKeyId secretAccessKey %s %s",
+                                                         scriptLocation,
+                                                         RANDOM_SESSION_TOKEN,
+                                                         DateUtils.formatIso8601Date(Instant.now().plusSeconds(20))))
                                           .credentialRefreshThreshold(Duration.ofSeconds(20))
                                           .build();
 

core/auth/src/test/resources/resources/process/linux-credentials-script.sh

@@ -4,8 +4,12 @@ echo '"Version": 1,';
 echo "\"AccessKeyId\": \"$1\",";
 echo "\"SecretAccessKey\": \"$2\"";
 if [[ $# -ge 3 ]]; then
-    echo ','
-    echo "\"SessionToken\": \"$RANDOM\"";
+    echo ',';
+    if [[ "$3" = "RANDOM_TOKEN" ]]; then
+        echo "\"SessionToken\": \"$RANDOM\""
+    else
+        echo "\"SessionToken\": \"$3\""
+    fi;
 fi;
 if [[ $# -ge 4 ]]; then
     echo ','

core/auth/src/test/resources/resources/process/windows-credentials-script.bat

@@ -6,7 +6,11 @@ ECHO "AccessKeyId": "%1",
 ECHO "SecretAccessKey": "%2"
 IF NOT "%3"=="" (
     ECHO ,
-    ECHO "SessionToken": "%RANDOM"
+    IF "%3"=="RANDOM_TOKEN" (
+        ECHO "SessionToken": "%RANDOM%"
+    ) ELSE (
+        ECHO "SessionToken": "%3"
+    )
 )
 IF NOT "%4"=="" (
     ECHO ,