feat(httpc): go-hua/httpurl 迁入并更名 httpc(HTTP 客户端)

- 原包名 httpurl 看不出是客户端, 更名 httpc; GET/POST/PUT/DELETE/代理/
  Digest 认证, 函数签名不变, 附测试、例程与 README

httpc/httpc_test.go

@@ -0,0 +1,137 @@
+package httpc
+
+import (
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestGet(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			t.Errorf("Method = %s, want GET", r.Method)
+		}
+		if r.URL.Query().Get("name") != "zogo" {
+			t.Errorf("query name = %q", r.URL.Query().Get("name"))
+		}
+		w.Write([]byte(`{"ok":true}`))
+	}))
+	defer ts.Close()
+
+	body, err := Get(ts.URL+"/get?name=zogo", nil)
+	if err != nil {
+		t.Fatalf("Get: %v", err)
+	}
+	if string(body) != `{"ok":true}` {
+		t.Errorf("body = %q", string(body))
+	}
+}
+
+func TestGetWithHeader(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Header.Get("X-Token") != "abc" {
+			t.Errorf("X-Token = %q", r.Header.Get("X-Token"))
+		}
+		w.Write([]byte("ok"))
+	}))
+	defer ts.Close()
+
+	if _, err := Get(ts.URL, map[string]string{"X-Token": "abc"}); err != nil {
+		t.Fatalf("Get: %v", err)
+	}
+}
+
+func TestPost(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			t.Errorf("Method = %s, want POST", r.Method)
+		}
+		if r.Header.Get("Content-Type") != "application/json" {
+			t.Errorf("Content-Type = %q, want application/json", r.Header.Get("Content-Type"))
+		}
+		b, _ := io.ReadAll(r.Body)
+		if string(b) != `{"id":1}` {
+			t.Errorf("body = %q", string(b))
+		}
+		w.Write([]byte("posted"))
+	}))
+	defer ts.Close()
+
+	body, err := Post(ts.URL, []byte(`{"id":1}`), nil)
+	if err != nil {
+		t.Fatalf("Post: %v", err)
+	}
+	if string(body) != "posted" {
+		t.Errorf("body = %q", string(body))
+	}
+}
+
+func TestPostCustomContentType(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if !strings.HasPrefix(r.Header.Get("Content-Type"), "text/plain") {
+			t.Errorf("Content-Type = %q, want text/plain", r.Header.Get("Content-Type"))
+		}
+	}))
+	defer ts.Close()
+
+	if _, err := Post(ts.URL, []byte("text"), map[string]string{"Content-Type": "text/plain"}); err != nil {
+		t.Fatalf("Post: %v", err)
+	}
+}
+
+func TestPut(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPut {
+			t.Errorf("Method = %s, want PUT", r.Method)
+		}
+		w.Write([]byte("putted"))
+	}))
+	defer ts.Close()
+
+	body, err := Put(ts.URL, []byte(`{}`), nil)
+	if err != nil || string(body) != "putted" {
+		t.Errorf("Put = %q, %v", string(body), err)
+	}
+}
+
+func TestDelete(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodDelete {
+			t.Errorf("Method = %s, want DELETE", r.Method)
+		}
+		w.Write([]byte("deleted"))
+	}))
+	defer ts.Close()
+
+	body, err := Delete(ts.URL, []byte(`{}`), nil)
+	if err != nil || string(body) != "deleted" {
+		t.Errorf("Delete = %q, %v", string(body), err)
+	}
+}
+
+func TestGetProxyEmptyProxy(t *testing.T) {
+	// 代理地址为空时应直连
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Write([]byte("direct"))
+	}))
+	defer ts.Close()
+
+	body, err := GetProxy(ts.URL, nil, "")
+	if err != nil || string(body) != "direct" {
+		t.Errorf("GetProxy 空代理 = %q, %v", string(body), err)
+	}
+}
+
+func TestErrorStatusCode(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.WriteHeader(http.StatusInternalServerError)
+	}))
+	defer ts.Close()
+
+	_, err := Get(ts.URL, nil)
+	if err == nil || !strings.Contains(err.Error(), "500") {
+		t.Errorf("非 2xx 响应应返回错误，got %v", err)
+	}
+}