[bugfix] Handle native RegExp route URIs correctly

Fixes #4

cypress/integration/navigation.feature

@@ -14,12 +14,18 @@ When I navigate to "actions"
 Then I should be on "/cypress/pages/actions.html"
 
 
-Scenario: Can assert to be on the current page by page name
+Scenario: Can assert to be on the current page by page name when the page URI is a relative path
 ---
 When I navigate to "assertions"
 Then I should be on "assertions"
 
 
+Scenario: Can assert to be on the current page by page name when the page URI is a regex
+---
+When I navigate to "assertions"
+Then I should be on "any page"
+
+
 Scenario: Can assert to be on the current page by page path string
 ---
 When I navigate to "assertions"

cypress/support/step_definitions/index.js

@@ -8,6 +8,7 @@ addSteps({
         assertions: "/cypress/pages/assertions.html",
         "input actions": "/cypress/pages/actions-inputs.html",
         "input assertions": "/cypress/pages/assertions-inputs.html",
+        "any page": /cypress\/pages\//,
     },
     steps: {
         "I double-click {element}": function(element, table, { options }) {

src/steps.js

@@ -2,8 +2,8 @@ const { getElementOptions } = require("./index")
 
 module.exports = {
     /*
-		Actions
-	 */
+        Actions
+     */
 
     "I navigate to {route}": function(route, table, { routes }) {
         cy.visit(routes[route] || route)
@@ -58,26 +58,26 @@ module.exports = {
     },
 
     /*
-		Assertions
-	 */
+        Assertions
+     */
 
     "I should be on {route}": function(route, table, { routes }) {
         let path = routes[route] || route
-        const isRegexPath = path.startsWith("/") && path.endsWith("/")
 
-        if (isRegexPath) {
+        const isRegexStringPath = typeof path === "string" && path.startsWith("/") && path.endsWith("/")
+        if (isRegexStringPath) {
             path = new RegExp(path.slice(1, -1))
         }
 
-        let comparator = path instanceof RegExp ? "match" : "eq"
+        const comparator = path instanceof RegExp ? "match" : "eq"
         cy.location("pathname").should(comparator, path)
     },
 
     "I should not be on {route}": function(route, table, { routes }) {
         let path = routes[route] || route
-        const isRegexPath = path.startsWith("/") && path.endsWith("/")
 
-        if (isRegexPath) {
+        const isRegexStringPath = typeof path === "string" && path.startsWith("/") && path.endsWith("/")
+        if (isRegexStringPath) {
             path = new RegExp(path.slice(1, -1))
         }