Add matchPattern tests

modules/__tests__/PatternUtils-test.js

@@ -0,0 +1,32 @@
+/*eslint-env mocha */
+import expect from 'expect'
+import { matchPattern } from '../PatternUtils'
+
+describe('matchPattern', function () {
+
+  function assertMatch(pattern, pathname, remainingPathname, paramNames, paramValues) {
+    expect(matchPattern(pattern, pathname)).toEqual({
+      remainingPathname,
+      paramNames,
+      paramValues
+    })
+  }
+
+  it('works without params', function () {
+    assertMatch('/', '/path', 'path', [], [])
+  })
+
+  it('works with named params', function () {
+    assertMatch('/:id', '/path', '', [ 'id' ], [ 'path' ])
+    assertMatch('/:id.:ext', '/path.jpg', '', [ 'id', 'ext' ], [ 'path', 'jpg' ])
+  })
+
+  it('works with splat params', function () {
+    assertMatch('/files/*.*', '/files/path.jpg', '', [ 'splat', 'splat' ], [ 'path', 'jpg' ])
+  })
+
+  it('ignores trailing slashes', function () {
+    assertMatch('/:id', '/path/', '', [ 'id' ], [ 'path' ])
+  })
+
+})