test: add test harness with http and router tests

test/test_router.rb

@@ -0,0 +1,94 @@
+require 'minitest/autorun'
+require 'prism'
+
+class RouterTest < Minitest::Test
+  def setup
+    @router = Prism::Router.new
+  end
+
+  def test_static_match
+    @router.add('GET', '/health') {}
+    matches = @router.matches('GET', '/health')
+    assert_equal 1, matches.size
+    assert_equal({}, matches.first[1])
+  end
+
+  def test_named_param
+    @router.add('GET', '/users/:id') {}
+    _, params = @router.matches('GET', '/users/42').first
+    assert_equal '42', params['id']
+  end
+
+  def test_multiple_params
+    @router.add('GET', '/users/:uid/posts/:pid') {}
+    _, params = @router.matches('GET', '/users/7/posts/99').first
+    assert_equal '7', params['uid']
+    assert_equal '99', params['pid']
+  end
+
+  def test_wildcard
+    @router.add('GET', '/files/*') {}
+    _, params = @router.matches('GET', '/files/a/b/c.txt').first
+    assert_equal ['a/b/c.txt'], params['splat']
+  end
+
+  def test_method_mismatch
+    @router.add('POST', '/submit') {}
+    assert_empty @router.matches('GET', '/submit')
+  end
+
+  def test_no_match
+    @router.add('GET', '/x') {}
+    assert_empty @router.matches('GET', '/y')
+  end
+
+  def test_param_unescape
+    @router.add('GET', '/say/:word') {}
+    _, params = @router.matches('GET', '/say/hello%20world').first
+    assert_equal 'hello world', params['word']
+  end
+
+  def test_dot_is_literal
+    @router.add('GET', '/a.b') {}
+    assert_empty @router.matches('GET', '/axb')
+    assert_equal 1, @router.matches('GET', '/a.b').size
+  end
+
+  def test_all_http_verbs_supported
+    %w[GET POST PUT PATCH DELETE OPTIONS HEAD].each do |verb|
+      @router.add(verb, '/verb-check') {}
+      assert_equal 1, @router.matches(verb, '/verb-check').size, "#{verb} should match"
+    end
+  end
+
+  def test_named_route_path
+    @router.add('GET', '/posts/:id', name: :post) {}
+    assert_equal '/posts/7', @router.path_to(:post, id: 7)
+  end
+
+  def test_named_route_path_escapes_values
+    @router.add('GET', '/search/:term', name: :search) {}
+    assert_equal '/search/hello%20world', @router.path_to(:search, term: 'hello world')
+  end
+
+  def test_named_route_missing_param_raises
+    @router.add('GET', '/posts/:id', name: :post) {}
+    assert_raises(ArgumentError) { @router.path_to(:post, {}) }
+  end
+
+  def test_unknown_named_route_raises
+    assert_raises(ArgumentError) { @router.path_to(:nope) }
+  end
+
+  def test_controller_route_flag
+    route = @router.add('GET', '/posts/:id', to: 'posts#show')
+    assert route.controller_route?
+    assert_equal 'posts', route.controller_name
+    assert_equal 'show', route.action_name
+  end
+
+  def test_block_route_is_not_a_controller_route
+    route = @router.add('GET', '/health') {}
+    refute route.controller_route?
+  end
+end