diff --git a/docs/addition_of_exercise_draft.md b/docs/addition_of_exercise_draft.md
index f2f5050c..4d2a5db1 100644
--- a/docs/addition_of_exercise_draft.md
+++ b/docs/addition_of_exercise_draft.md
@@ -1,5 +1,7 @@
 # THE ADDITION OF EXERCISE PROCEDURE
 
+**Needs to be updated since the refactor**
+
 ##### This is for a go exercise in the piscine-go
 
 ## **1. Writing the subject and / or writing the solution**
diff --git a/subjects/brainfuck.en.md b/subjects/brainfuck.en.md
index 32cd7830..ec03c50d 100644
--- a/subjects/brainfuck.en.md
+++ b/subjects/brainfuck.en.md
@@ -29,7 +29,6 @@ student@ubuntu:~/[[ROOT]]/brainfuck$ ./brainfuck "+++++[>++++[>++++H>+++++i<<-]>
 Hi$
 student@ubuntu:~/[[ROOT]]/brainfuck$ ./brainfuck "++++++++++[>++++++++++>++++++++++>++++++++++<<<-]>---.>--.>-.>++++++++++." | cat -e
 abc$
-student@ubuntu:~/[[ROOT]]/brainfuck$ ./brainfuck | cat -e
-$
+student@ubuntu:~/[[ROOT]]/brainfuck$ ./brainfuck
 student@ubuntu:~/[[ROOT]]/brainfuck$
 ```
diff --git a/subjects/doppelgangerprog.en.md b/subjects/doppelganger.en.md
similarity index 100%
rename from subjects/doppelgangerprog.en.md
rename to subjects/doppelganger.en.md
diff --git a/subjects/findprevprimeprog.en.md b/subjects/findprevprime.en.md
similarity index 100%
rename from subjects/findprevprimeprog.en.md
rename to subjects/findprevprime.en.md
diff --git a/tests/go/solutions/brainfuck/main.go b/tests/go/solutions/brainfuck/main.go
index 64915c30..e8e3bf0c 100644
--- a/tests/go/solutions/brainfuck/main.go
+++ b/tests/go/solutions/brainfuck/main.go
@@ -9,60 +9,59 @@ import (
 const SIZE = 2048
 
 func main() {
-	if len(os.Args) == 2 {
-		progpoint := []byte(os.Args[1])
-		var arby [SIZE]byte
-		pos := 0
-		openBr := 0         //opened brackets
-		i := 0              //iterates through the source code passed in the argument
-		N := len(progpoint) //length of the source code
-		for i >= 0 && i < N {
-			switch progpoint[i] {
-			case '>':
-				// Increment the pointer
-				pos++
-			case '<':
-				// decrement the pointes
-				pos--
-			case '+':
-				// increment the pointed byte
-				arby[pos]++
-			case '-':
-				// decrement the pointed byte
-				arby[pos]--
-			case '.':
-				// print the pointed byte on std output
-				z01.PrintRune(rune(arby[pos]))
-			case '[':
-				// go to the matching ']' if the pointed byte is 0 (while start)
-				openBr = 0
-				if arby[pos] == 0 {
-					for i < N && (progpoint[i] != byte(']') || openBr > 1) {
-						if progpoint[i] == byte('[') {
-							openBr++
-						} else if progpoint[i] == byte(']') {
-							openBr--
-						}
-						i++
+	if len(os.Args) != 2 {
+		return
+	}
+	progpoint := []byte(os.Args[1])
+	var arby [SIZE]byte
+	pos := 0
+	openBr := 0         // opened brackets
+	i := 0              // iterates through the source code passed in the argument
+	N := len(progpoint) // length of the source code
+	for i >= 0 && i < N {
+		switch progpoint[i] {
+		case '>':
+			// Increment the pointer
+			pos++
+		case '<':
+			// decrement the pointes
+			pos--
+		case '+':
+			// increment the pointed byte
+			arby[pos]++
+		case '-':
+			// decrement the pointed byte
+			arby[pos]--
+		case '.':
+			// print the pointed byte on std output
+			z01.PrintRune(rune(arby[pos]))
+		case '[':
+			// go to the matching ']' if the pointed byte is 0 (while start)
+			openBr = 0
+			if arby[pos] == 0 {
+				for i < N && (progpoint[i] != byte(']') || openBr > 1) {
+					if progpoint[i] == byte('[') {
+						openBr++
+					} else if progpoint[i] == byte(']') {
+						openBr--
 					}
+					i++
 				}
-			case ']':
-				// go to the matching '[' if the pointed byte is not 0 (while end)
-				openBr = 0
-				if arby[pos] != 0 {
-					for i >= 0 && (progpoint[i] != byte('[') || openBr > 1) {
-						if progpoint[i] == byte(']') {
-							openBr++
-						} else if progpoint[i] == byte('[') {
-							openBr--
-						}
-						i--
+			}
+		case ']':
+			// go to the matching '[' if the pointed byte is not 0 (while end)
+			openBr = 0
+			if arby[pos] != 0 {
+				for i >= 0 && (progpoint[i] != byte('[') || openBr > 1) {
+					if progpoint[i] == byte(']') {
+						openBr++
+					} else if progpoint[i] == byte('[') {
+						openBr--
 					}
+					i--
 				}
 			}
-			i++
 		}
-	} else {
-		z01.PrintRune('\n')
+		i++
 	}
 }
diff --git a/tests/go/test_compact.go b/tests/go/test_compact.go
index c5a2ee20..f400abd1 100644
--- a/tests/go/test_compact.go
+++ b/tests/go/test_compact.go
@@ -15,7 +15,7 @@ func main() {
 	for i := 0; i < 20; i++ {
 		n := z01.RandIntBetween(5, 20) // random size of the slice
 
-		orig := make([]string, n) //slice with the original value
+		orig := make([]string, n) // slice with the original value
 
 		num_pos := z01.RandIntBetween(1, n-1) // random number of positions to be written
 
diff --git a/tests/go/test_doppelganger.go b/tests/go/test_doppelganger.go
index c75c18ec..1cf669d7 100644
--- a/tests/go/test_doppelganger.go
+++ b/tests/go/test_doppelganger.go
@@ -48,6 +48,6 @@ func main() {
 	}
 
 	for _, arg := range table {
-		z01.Challenge("DoppelGangerProg", student.DoppelGanger, correct.DoppelGanger, arg.big, arg.little)
+		z01.Challenge("DoppelGanger", student.DoppelGanger, correct.DoppelGanger, arg.big, arg.little)
 	}
 }
diff --git a/tests/go/test_raid3.go b/tests/go/test_raid3.go
index 4952522a..da043133 100644
--- a/tests/go/test_raid3.go
+++ b/tests/go/test_raid3.go
@@ -37,11 +37,11 @@ func main() {
 	// builds all the files for testing, student, solution and relevant files
 	execFatal("go", "build", "-o", "raid3", "solutions/raid3/main.go")
 	execFatal("go", "build", "-o", "raid3_student", "student/raid3/main.go")
-	execFatal("go", "build", "solutions/raid3/raid1aProg/raid1a.go")
-	execFatal("go", "build", "solutions/raid3/raid1bProg/raid1b.go")
-	execFatal("go", "build", "solutions/raid3/raid1cProg/raid1c.go")
-	execFatal("go", "build", "solutions/raid3/raid1dProg/raid1d.go")
-	execFatal("go", "build", "solutions/raid3/raid1eProg/raid1e.go")
+	execFatal("go", "build", "solutions/raid3/raid1aprog/raid1a.go")
+	execFatal("go", "build", "solutions/raid3/raid1bprog/raid1b.go")
+	execFatal("go", "build", "solutions/raid3/raid1cprog/raid1c.go")
+	execFatal("go", "build", "solutions/raid3/raid1dprog/raid1d.go")
+	execFatal("go", "build", "solutions/raid3/raid1eprog/raid1e.go")
 
 	// testing all raids1
 	table := []string{"raid1a", "raid1b", "raid1c", "raid1d", "raid1e"}
diff --git a/tests/go/test_ztail.go b/tests/go/test_ztail.go
index 3d7fd048..e0fec4d4 100644
--- a/tests/go/test_ztail.go
+++ b/tests/go/test_ztail.go
@@ -31,4 +31,6 @@ func main() {
 	}
 }
 
-// TODO: never use programs we didn't wrote (do not run the true cat but instead code our own solution)
+// TODO:
+// never use programs we didn't wrote (do not run the true cat but instead code our own solution)
+// to be fixed