Add testing page

Author: mkaz

pages/testing.md

@@ -0,0 +1,34 @@
+---
+title: Testing
+parent: 1465
+template: page-tut.php
+order: 24
+---
+
+# Testing
+
+The [Go testing package](https://golang.org/pkg/testing/) supports creating unit test in go. Your test code is written in plain go, there is not a new assert language or syntax to learn. You write go code, and then Fail or Error out to signal the test did not pass.
+
+To write a new test created a test file, ending in `_test.go` which includes functions with the following signature: `func TestXxx(*testing.T)`
+
+Note: The function name must start with `Test` and include a capitalized second part which is used to identify the test routing.
+
+For example, if you want to test an `Add` function in your project:
+
+Create `add_test.go`:
+
+```go
+package main
+
+import "testing"
+
+func TestAdd(t *testing.T) {
+    sum := Add(1, 1)
+    if sum != 2 {
+       t.Errorf("Expected %d => Received %d", 2, sum)
+    }
+}
+```
+
+Run test using: `go test`
+