Initial check in of testing scripts.

test/utils.js

@@ -0,0 +1,129 @@
+
+var fs = require("fs");
+var path = require("path");
+
+var filterErr = function(code, done) {
+    return function (e) {
+	done(e.code !== code ? e : undefined);
+    }
+};
+
+var throwErr = function(done) {
+    return function (e) {
+	if (e)
+	    throw e;
+	
+	done();
+    };
+};
+ 
+// apply function to elements of array. Return first true value to done or undefined.
+var mapOr = function(func, array, done) {
+    if (array.length) {
+	func(array[array.length-1], function (v) {
+		if (v) {
+		    done(v);
+		}
+		else {
+		    array.length -= 1;
+		    mapOr(func, array, done);
+		}
+	    });
+    }
+    else {
+	done();
+    }
+};
+
+// Make a directory and sub-directories.
+var mkPath = function(dirPath, mode, done) {
+    fs.mkdir(dirPath, mode, function (e) {
+	    if (e && e.code === "EEXIST") {
+		// Already exists, done.
+		done();
+	    }
+	    else if (e.code === "ENOENT") {
+		// Missing sub dir.
+
+		mkPath(path.dirname(dirPath), mode, function(e) {
+			if (e) {
+			    throw e;
+			}
+			else {
+			    mkPath(dirPath, mode, done);
+			}
+		    });
+	    }
+	    else {
+		throw e;
+	    }
+	});
+};
+
+// Empty a directory.
+var emptyPath = function(dirPath, done) {
+    fs.readdir(dirPath, function (err, files) {
+	if (err) {
+	    done(err);
+	}
+	else {
+	    mapOr(rmPath, files.map(function(f) { return path.join(dirPath, f); }), done);
+	}
+    });
+};
+
+// Remove path recursively.
+var rmPath = function(dirPath, done) {
+//    console.log("rmPath: %s", dirPath);
+
+    fs.lstat(dirPath, function (err, stats) {
+	if (err && err.code == "ENOENT") {
+	    done();
+	}
+	if (err) {
+	    done(err);
+	}
+	else if (stats.isDirectory()) {
+	    emptyPath(dirPath, function (e) {
+		    if (e) {
+			done(e);
+		    }
+		    else {
+//			console.log("rmdir: %s", dirPath); done();
+			fs.rmdir(dirPath, done);
+		    }
+		});
+	}
+	else {
+//	    console.log("unlink: %s", dirPath); done();
+	    fs.unlink(dirPath, done);
+	}
+    });
+};
+
+// Create directory if needed and empty if needed.
+var resetPath = function(dirPath, mode, done) {
+    mkPath(dirPath, mode, function (e) {
+	if (e) {
+	    done(e);
+	}
+	else {
+	    emptyPath(dirPath, done);
+	}
+    });
+};
+
+var trace = function(comment, func) {
+    return function() {
+	console.log("%s: %s", trace, arguments.toString);
+	func(arguments);
+    };
+};
+
+exports.emptyPath   = emptyPath;
+exports.mapOr	    = mapOr;
+exports.mkPath	    = mkPath;
+exports.resetPath   = resetPath;
+exports.rmPath	    = rmPath;
+exports.trace	    = trace;
+