Silence unit tests.

source/app.d

@@ -765,11 +765,10 @@ void readValue() {
 	valOpStack.length = 0;
 }
 
-debug int testValue(string l) {
+version (unittest) int testValue(string l) {
 	line = l;
 	column = 0;
 	readValue();
-	writefln("Value of %s is %x", l, value);
 	return value;
 }
 
@@ -1033,11 +1032,10 @@ void readAbsoluteAddrMode() {
 	addrMode = AddrMode.ABSOLUTE;
 }
 
-debug AddrMode testAddrMode(string l) {
+version (unittest) AddrMode testAddrMode(string l) {
 	line = l;
 	column = 0;
 	readAddrMode();
-	writefln("Addressing mode of \"%s\" is %x", l, addrMode);
 	return addrMode;
 }
 
@@ -1175,10 +1173,10 @@ void listLabelTable() {
 	}
 }
 
-debug ubyte[] objectBuffer;
+version (unittest) ubyte[] objectBuffer;
 
 void objectByte(ubyte b) {
-	debug {
+	version (unittest) {
 		objectBuffer ~= b;
 	} else {
 		assert(pass2);
@@ -1234,11 +1232,11 @@ void putByte(ubyte b) {
 			}
 		}
 	}
-	debug {
+	version (unittest) {
 		objectByte(b);
 	}
 	if (pass2) {
-		debug {
+		version (unittest) {
 		} else {
 			objectByte(b);
 		}
@@ -2639,15 +2637,11 @@ void assemblyInstruction(string instruction) {
 	skipping = false;
 }
 
-debug ubyte[] testInstruction(string l) {
+version (unittest) ubyte[] testInstruction(string l) {
 	objectBuffer.length = 0;
 	line = l;
 	column = 0;
 	assemblyInstruction(readInstruction());
-	write(line, " assembles to");
-	foreach (ubyte b; objectBuffer)
-		writef(" %02x", b);
-	writeln();
 	return objectBuffer;
 }
 
@@ -2684,9 +2678,6 @@ void assemblyPair() {
 }
 
 void assemblyLine() {
-	debug {
-		writeln(line);
-	}
 	lineNo++;
 	totalLines++;
 	column = 0;
@@ -2940,6 +2931,9 @@ int main(string[] args) {
 			exitCode = 3;
 		sourceFilename = arg;
 	}
+	version (unittest)
+		return 0;
+	else {
 		if (sourceFilename is null)
 			exitCode = 3;
 		if (!getOption('q'))
@@ -3020,3 +3014,4 @@ int main(string[] args) {
 		}
 		return exitCode;
 	}
+}