Created the test cases for the initializer and the Start command

Author: f0rmiga

sessiongate_test.go

@@ -0,0 +1,96 @@
+package sessiongate
+
+import (
+	"crypto/rand"
+	"errors"
+	"regexp"
+	"testing"
+	"time"
+)
+
+var signKey []byte
+
+func init() {
+	signKey = make([]byte, 16)
+	rand.Read(signKey)
+}
+
+// TestStart tests the START command for the SessionGate module
+func TestStart(t *testing.T) {
+	t.Run("Should fail with missing SignKey", func(t *testing.T) {
+		config := &Config{}
+
+		_, err := NewSessiongate(config)
+		if err == nil {
+			t.Fail()
+		}
+	})
+
+	t.Run("Should fail with negative TTL", func(t *testing.T) {
+		config := &Config{
+			SignKey: signKey,
+		}
+
+		sessiongate, err := NewSessiongate(config)
+		if err != nil {
+			t.Error(err)
+		}
+
+		_, err = sessiongate.Start(-1)
+		if err == nil {
+			t.Error(errors.New("Negative TTL should produce an error"))
+		}
+	})
+
+	// checkStart checks if the START command does not produce an error and if
+	// token is in the expected format
+	checkStart := func(config *Config) {
+		sessiongate, err := NewSessiongate(config)
+		if err != nil {
+			t.Error(err)
+		}
+
+		token, err := sessiongate.Start(300)
+		if err != nil {
+			t.Error(err)
+		}
+
+		regex := "^v[0-9]\\.[a-zA-Z0-9]+\\.[a-zA-Z0-9]+$"
+		match, err := regexp.MatchString(regex, string(token))
+		if err != nil {
+			t.Error(err)
+		}
+
+		if match == false {
+			err = errors.New("The response token does not match the expected format")
+			t.Error(err)
+		}
+	}
+
+	t.Run("Should succeed with default configuration", func(t *testing.T) {
+		checkStart(&Config{
+			SignKey: signKey,
+		})
+	})
+
+	t.Run("Should succeed with explicit Addr", func(t *testing.T) {
+		checkStart(&Config{
+			SignKey: signKey,
+			Addr:    "localhost:6379",
+		})
+	})
+
+	t.Run("Should succeed with explicit MaxIdle", func(t *testing.T) {
+		checkStart(&Config{
+			SignKey: signKey,
+			MaxIdle: 15,
+		})
+	})
+
+	t.Run("Should succeed with explicit IdleTimeout", func(t *testing.T) {
+		checkStart(&Config{
+			SignKey:     signKey,
+			IdleTimeout: 90 * time.Second,
+		})
+	})
+}