Add additional test detail (#1099)

Update test to show more detail to help for checking for poor/inconsistent FLASH operation.

libraries/SPIFFS/examples/SPIFFS_Test/SPIFFS_Test.ino

@@ -2,15 +2,15 @@
 #include "SPIFFS.h"
 
 void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
-    Serial.printf("Listing directory: %s\n", dirname);
+    Serial.printf("Listing directory: %s\r\n", dirname);
 
     File root = fs.open(dirname);
     if(!root){
-        Serial.println("Failed to open directory");
+        Serial.println("- failed to open directory");
         return;
     }
     if(!root.isDirectory()){
-        Serial.println("Not a directory");
+        Serial.println(" - not a directory");
         return;
     }
 
@@ -25,7 +25,7 @@ void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
         } else {
             Serial.print("  FILE: ");
             Serial.print(file.name());
-            Serial.print("  SIZE: ");
+            Serial.print("\tSIZE: ");
             Serial.println(file.size());
         }
         file = root.openNextFile();
@@ -33,108 +33,120 @@ void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
 }
 
 void readFile(fs::FS &fs, const char * path){
-    Serial.printf("Reading file: %s\n", path);
+    Serial.printf("Reading file: %s\r\n", path);
 
     File file = fs.open(path);
     if(!file || file.isDirectory()){
-        Serial.println("Failed to open file for reading");
+        Serial.println("- failed to open file for reading");
         return;
     }
 
-    Serial.print("Read from file: ");
+    Serial.println("- read from file:");
     while(file.available()){
         Serial.write(file.read());
     }
 }
 
 void writeFile(fs::FS &fs, const char * path, const char * message){
-    Serial.printf("Writing file: %s\n", path);
+    Serial.printf("Writing file: %s\r\n", path);
 
     File file = fs.open(path, FILE_WRITE);
     if(!file){
-        Serial.println("Failed to open file for writing");
+        Serial.println("- failed to open file for writing");
         return;
     }
     if(file.print(message)){
-        Serial.println("File written");
+        Serial.println("- file written");
     } else {
-        Serial.println("Write failed");
+        Serial.println("- frite failed");
     }
 }
 
 void appendFile(fs::FS &fs, const char * path, const char * message){
-    Serial.printf("Appending to file: %s\n", path);
+    Serial.printf("Appending to file: %s\r\n", path);
 
     File file = fs.open(path, FILE_APPEND);
     if(!file){
-        Serial.println("Failed to open file for appending");
+        Serial.println("- failed to open file for appending");
         return;
     }
     if(file.print(message)){
-        Serial.println("Message appended");
+        Serial.println("- message appended");
     } else {
-        Serial.println("Append failed");
+        Serial.println("- append failed");
     }
 }
 
 void renameFile(fs::FS &fs, const char * path1, const char * path2){
-    Serial.printf("Renaming file %s to %s\n", path1, path2);
+    Serial.printf("Renaming file %s to %s\r\n", path1, path2);
     if (fs.rename(path1, path2)) {
-        Serial.println("File renamed");
+        Serial.println("- file renamed");
     } else {
-        Serial.println("Rename failed");
+        Serial.println("- rename failed");
     }
 }
 
 void deleteFile(fs::FS &fs, const char * path){
-    Serial.printf("Deleting file: %s\n", path);
+    Serial.printf("Deleting file: %s\r\n", path);
     if(fs.remove(path)){
-        Serial.println("File deleted");
+        Serial.println("- file deleted");
     } else {
-        Serial.println("Delete failed");
+        Serial.println("- delete failed");
     }
 }
 
 void testFileIO(fs::FS &fs, const char * path){
-    File file = fs.open(path);
+    Serial.printf("Testing file I/O with %s\r\n", path);
+
     static uint8_t buf[512];
     size_t len = 0;
+    File file = fs.open(path, FILE_WRITE);
+    if(!file){
+        Serial.println("- failed to open file for writing");
+        return;
+    }
+
+    size_t i;
+    Serial.print("- writing" );
     uint32_t start = millis();
-    uint32_t end = start;
+    for(i=0; i<2048; i++){
+        if ((i & 0x001F) == 0x001F){
+          Serial.print(".");
+        }
+        file.write(buf, 512);
+    }
+    Serial.println("");
+    uint32_t end = millis() - start;
+    Serial.printf(" - %u bytes written in %u ms\r\n", 2048 * 512, end);
+    file.close();
+
+    file = fs.open(path);
+    start = millis();
+    end = start;
+    i = 0;
     if(file && !file.isDirectory()){
         len = file.size();
         size_t flen = len;
         start = millis();
+        Serial.print("- reading" );
         while(len){
             size_t toRead = len;
             if(toRead > 512){
                 toRead = 512;
             }
             file.read(buf, toRead);
+            if ((i++ & 0x001F) == 0x001F){
+              Serial.print(".");
+            }
             len -= toRead;
         }
+        Serial.println("");
         end = millis() - start;
-        Serial.printf("%u bytes read for %u ms\n", flen, end);
+        Serial.printf("- %u bytes read in %u ms\r\n", flen, end);
         file.close();
     } else {
-        Serial.println("Failed to open file for reading");
+        Serial.println("- failed to open file for reading");
     }
-
-
-    file = fs.open(path, FILE_WRITE);
-    if(!file){
-        Serial.println("Failed to open file for writing");
-        return;
-    }
-
-    size_t i;
-    start = millis();
-    for(i=0; i<2048; i++){
-        file.write(buf, 512);
-    }
-    end = millis() - start;
-    Serial.printf("%u bytes written for %u ms\n", 2048 * 512, end);
-    file.close();
 }
 
 void setup(){
@@ -146,12 +158,14 @@ void setup(){
     
     listDir(SPIFFS, "/", 0);
     writeFile(SPIFFS, "/hello.txt", "Hello ");
-    appendFile(SPIFFS, "/hello.txt", "World!\n");
+    appendFile(SPIFFS, "/hello.txt", "World!\r\n");
     readFile(SPIFFS, "/hello.txt");
-    deleteFile(SPIFFS, "/foo.txt");
     renameFile(SPIFFS, "/hello.txt", "/foo.txt");
     readFile(SPIFFS, "/foo.txt");
+    deleteFile(SPIFFS, "/foo.txt");
     testFileIO(SPIFFS, "/test.txt");
+    deleteFile(SPIFFS, "/test.txt");
+    Serial.println( "Test complete" );
 }
 
 void loop(){