fix: clear log before test (#746)

* fix: logging for APIKeyUnauthorisedException

* fix: pr comments

* fix: clear log before run

Author: sattvikc

src/test/java/io/supertokens/test/CLIOptionsTest.java

@@ -32,6 +32,7 @@
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
+import java.io.FileWriter;
 
 import static org.junit.Assert.*;
 
@@ -151,6 +152,18 @@ public void testMultipleInstancesAtTheSameTime() throws Exception {
             assertEquals(Config.getConfig(process1.getProcess()).getErrorLogPath(process1.getProcess()),
                     Config.getConfig(process2.getProcess()).getErrorLogPath(process2.getProcess()));
 
+            // clear log files
+            {
+                FileWriter f = new FileWriter(Config.getConfig(process.getProcess()).getInfoLogPath(process.getProcess()));
+                f.flush();
+                f.close();
+            }
+            {
+                FileWriter f = new FileWriter(Config.getConfig(process.getProcess()).getErrorLogPath(process.getProcess()));
+                f.flush();
+                f.close();
+            }
+
             Logging.debug(process.getProcess(), TenantIdentifier.BASE_TENANT, "debugunique1");
             Logging.debug(process1.getProcess(), TenantIdentifier.BASE_TENANT, "debugunique2");
             Logging.debug(process2.getProcess(), TenantIdentifier.BASE_TENANT, "debugunique3");