Function TestDefaultBinder_BindBody

bind_test.go:932–1145

(t *testing.T)

}

func TestDefaultBinder_BindBody(t *testing.T) {
	// tests to check binding behaviour when multiple sources (path params, query params and request body) are in use
	// generally when binding from request body - URL and path params are ignored - unless form is being bound.
	// these tests are to document this behaviour and detect further possible regressions when bind implementation is changed

	type Node struct {
		Node string `json:"node" xml:"node" form:"node" query:"node" param:"node"`
		ID   int    `json:"id" xml:"id" form:"id" query:"id"`
	}
	type Nodes struct {
		Nodes []Node `xml:"node" form:"node"`
	}

	var testCases = []struct {
		givenContent     io.Reader
		whenBindTarget   any
		expect           any
		name             string
		givenURL         string
		givenMethod      string
		givenContentType string
		expectError      string
		whenNoPathValues bool
		whenChunkedBody  bool
	}{
		{
			name:             "ok, JSON POST bind to struct with: path + query + empty field in body",
			givenURL:         "/api/real_node/endpoint?node=xxx",
			givenMethod:      http.MethodPost,
			givenContentType: MIMEApplicationJSON,
			givenContent:     strings.NewReader(`{"id": 1}`),
			expect:           &Node{ID: 1, Node: ""}, // path params or query params should not interfere with body
		},
		{
			name:             "ok, JSON POST bind to struct with: path + query + body",
			givenURL:         "/api/real_node/endpoint?node=xxx",
			givenMethod:      http.MethodPost,
			givenContentType: MIMEApplicationJSON,
			givenContent:     strings.NewReader(`{"id": 1, "node": "zzz"}`),
			expect:           &Node{ID: 1, Node: "zzz"}, // field value from content has higher priority
		},
		{
			name:             "ok, JSON POST body bind json array to slice (has matching path/query params)",
			givenURL:         "/api/real_node/endpoint?node=xxx",
			givenMethod:      http.MethodPost,
			givenContentType: MIMEApplicationJSON,
			givenContent:     strings.NewReader(`[{"id": 1}]`),
			whenNoPathValues: true,
			whenBindTarget:   &[]Node{},
			expect:           &[]Node{{ID: 1, Node: ""}},
			expectError:      "",
		},
		{ // rare case as GET is not usually used to send request body
			name:             "ok, JSON GET bind to struct with: path + query + empty field in body",
			givenURL:         "/api/real_node/endpoint?node=xxx",
			givenMethod:      http.MethodGet,
			givenContentType: MIMEApplicationJSON,
			givenContent:     strings.NewReader(`{"id": 1}`),