Add support to formParameters (#29)

client_test.go

@@ -37,6 +37,8 @@ func TestStubRule_ToJson(t *testing.T) {
 				WithQueryParam("id", Contains("1").And(NotContains("2"))).
 				WithBodyPattern(EqualToJson(`{"meta": "information"}`, IgnoreArrayOrder, IgnoreExtraElements)).
 				WithBodyPattern(Contains("information")).
+				WithFormParameter("form1", EqualTo("value1")).
+				WithFormParameter("form2", Matching("value2")).
 				WithMultipartPattern(
 					NewMultipartPattern().
 						WithName("info").

request.go

@@ -15,6 +15,7 @@ type Request struct {
 	queryParams          map[string]MatcherInterface
 	cookies              map[string]BasicParamMatcher
 	bodyPatterns         []BasicParamMatcher
+	formParameters       map[string]BasicParamMatcher
 	multipartPatterns    []MultipartPatternInterface
 	basicAuthCredentials *struct {
 		username string
@@ -66,6 +67,15 @@ func (r *Request) WithBodyPattern(matcher BasicParamMatcher) *Request {
 	return r
 }
 
+// WithFormParameter adds form parameter to list
+func (r *Request) WithFormParameter(name string, matcher BasicParamMatcher) *Request {
+	if r.formParameters == nil {
+		r.formParameters = make(map[string]BasicParamMatcher, 1)
+	}
+	r.formParameters[name] = matcher
+	return r
+}
+
 // WithMultipartPattern adds multipart pattern to list
 func (r *Request) WithMultipartPattern(pattern *MultipartPattern) *Request {
 	r.multipartPatterns = append(r.multipartPatterns, pattern)
@@ -136,6 +146,9 @@ func (r *Request) MarshalJSON() ([]byte, error) {
 	if len(r.bodyPatterns) > 0 {
 		request["bodyPatterns"] = r.bodyPatterns
 	}
+	if len(r.formParameters) > 0 {
+		request["formParameters"] = r.formParameters
+	}
 	if len(r.multipartPatterns) > 0 {
 		request["multipartPatterns"] = r.multipartPatterns
 	}

stub_rule.go

@@ -81,6 +81,12 @@ func (s *StubRule) WithBodyPattern(matcher BasicParamMatcher) *StubRule {
 	return s
 }
 
+// WithFormParameter adds form parameter and returns *StubRule
+func (s *StubRule) WithFormParameter(param string, matcher BasicParamMatcher) *StubRule {
+	s.request.WithFormParameter(param, matcher)
+	return s
+}
+
 // WithMultipartPattern adds multipart body pattern and returns *StubRule
 func (s *StubRule) WithMultipartPattern(pattern *MultipartPattern) *StubRule {
 	s.request.WithMultipartPattern(pattern)

testdata/expected-template-scenario.json

@@ -26,6 +26,14 @@
         "contains": "information"
       }
     ],
+    "formParameters": {
+      "form1": {
+        "equalTo": "value1"
+      },
+      "form2": {
+        "matches": "value2"
+      }
+    },
     "multipartPatterns": [
       {
         "matchingType": "ANY",