add handle tests

Signed-off-by: Mohammed Al Sahaf <msaa1990@gmail.com>

caddytest/spec/http/handle/spec.hurl

@@ -0,0 +1,204 @@
+# Configure Caddy with handle directive
+POST http://localhost:2019/load
+Content-Type: text/caddyfile
+```
+{
+	skip_install_trust
+	http_port     9080
+	https_port    9443
+	local_certs
+}
+localhost {
+	handle /api/* {
+		respond "API handler"
+	}
+	handle /static/* {
+		respond "Static handler"
+	}
+	handle {
+		respond "Default handler"
+	}
+}
+```
+
+# handle matches first matching path
+GET https://localhost:9443/api/users
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "API handler"
+
+
+# handle matches second path
+GET https://localhost:9443/static/file.css
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Static handler"
+
+
+# handle uses default when nothing matches
+GET https://localhost:9443/other
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Default handler"
+
+
+# Configure Caddy with handle and named matchers
+POST http://localhost:2019/load
+Content-Type: text/caddyfile
+```
+{
+	skip_install_trust
+	http_port     9080
+	https_port    9443
+	local_certs
+}
+localhost {
+	@api {
+		path /api/*
+		method GET
+	}
+	handle @api {
+		respond "GET API"
+	}
+	handle /api/* {
+		respond "Other API methods"
+	}
+	handle {
+		respond "Not API"
+	}
+}
+```
+
+# handle evaluates named matchers correctly
+GET https://localhost:9443/api/users
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "GET API"
+
+
+# handle falls through to next handler when matcher doesn't match
+POST https://localhost:9443/api/users
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Other API methods"
+
+
+# handle uses final fallback
+GET https://localhost:9443/home
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Not API"
+
+
+# Configure Caddy with handle and mutually exclusive paths
+POST http://localhost:2019/load
+Content-Type: text/caddyfile
+```
+{
+	skip_install_trust
+	http_port     9080
+	https_port    9443
+	local_certs
+}
+localhost {
+	handle /foo {
+		respond "foo"
+	}
+	handle /foo/bar {
+		respond "foo/bar"
+	}
+	handle {
+		respond "neither"
+	}
+}
+```
+
+# handle stops at first match (doesn't cascade)
+GET https://localhost:9443/foo
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "foo"
+
+
+# Configure Caddy with handle containing multiple directives
+POST http://localhost:2019/load
+Content-Type: text/caddyfile
+```
+{
+	skip_install_trust
+	http_port     9080
+	https_port    9443
+	local_certs
+}
+localhost {
+	handle /api/* {
+		header X-Handler "API"
+		uri strip_prefix /api
+		respond "Path: {uri}"
+	}
+	handle {
+		respond "Not handled"
+	}
+}
+```
+
+# handle can contain multiple directives
+GET https://localhost:9443/api/test
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+header "X-Handler" == "API"
+body == "Path: /test"
+
+
+# Configure Caddy with handle_path
+POST http://localhost:2019/load
+Content-Type: text/caddyfile
+```
+{
+	skip_install_trust
+	http_port     9080
+	https_port    9443
+	local_certs
+}
+localhost {
+	handle_path /api/* {
+		respond "Path after strip: {uri}"
+	}
+	handle {
+		respond "Original: {uri}"
+	}
+}
+```
+
+# handle_path automatically strips prefix
+GET https://localhost:9443/api/v1/users
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Path after strip: /v1/users"
+
+
+# handle_path doesn't affect non-matching paths
+GET https://localhost:9443/other
+[Options]
+insecure: true
+HTTP 200
+[Asserts]
+body == "Original: /other"