test: add test cases for http util

Author: mlataza

internal/utils/http_test.go

@@ -0,0 +1,99 @@
+package utils
+
+import (
+	"bytes"
+	"context"
+	"net/http"
+	"testing"
+
+	"github.com/RewstApp/agent-smith-go/internal/version"
+)
+
+func TestNewRequestWithContext_SetsVersionHeader(t *testing.T) {
+	req, err := NewRequestWithContext(context.Background(), http.MethodGet, "https://example.com", nil)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	expected := version.Version[1:]
+	got := req.Header.Get("x-rewst-agent-smith-version")
+	if got != expected {
+		t.Errorf("expected header %q, got %q", expected, got)
+	}
+}
+
+func TestNewRequestWithContext_SetsMethodAndURL(t *testing.T) {
+	req, err := NewRequestWithContext(context.Background(), http.MethodPost, "https://example.com/path", nil)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	if req.Method != http.MethodPost {
+		t.Errorf("expected method POST, got %s", req.Method)
+	}
+
+	if req.URL.String() != "https://example.com/path" {
+		t.Errorf("expected URL 'https://example.com/path', got %s", req.URL.String())
+	}
+}
+
+func TestNewRequestWithContext_WithBody(t *testing.T) {
+	body := bytes.NewBufferString(`{"key":"value"}`)
+	req, err := NewRequestWithContext(context.Background(), http.MethodPost, "https://example.com", body)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	if req.Body == nil {
+		t.Error("expected non-nil body")
+	}
+}
+
+func TestNewRequestWithContext_InvalidURL(t *testing.T) {
+	_, err := NewRequestWithContext(context.Background(), http.MethodGet, "://invalid-url", nil)
+	if err == nil {
+		t.Error("expected error for invalid URL, got nil")
+	}
+}
+
+func TestNewRequestWithContext_PropagatesContext(t *testing.T) {
+	ctx, cancel := context.WithCancel(context.Background())
+	cancel()
+
+	req, err := NewRequestWithContext(ctx, http.MethodGet, "https://example.com", nil)
+	if err != nil {
+		t.Fatalf("expected no error creating request, got %v", err)
+	}
+
+	if req.Context().Err() == nil {
+		t.Error("expected cancelled context to propagate to request")
+	}
+}
+
+func TestNewRequest_SetsVersionHeader(t *testing.T) {
+	req, err := NewRequest(http.MethodGet, "https://example.com", nil)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	expected := version.Version[1:]
+	got := req.Header.Get("x-rewst-agent-smith-version")
+	if got != expected {
+		t.Errorf("expected header %q, got %q", expected, got)
+	}
+}
+
+func TestNewRequest_UsesBackgroundContext(t *testing.T) {
+	req, err := NewRequest(http.MethodGet, "https://example.com", nil)
+	if err != nil {
+		t.Fatalf("expected no error, got %v", err)
+	}
+
+	if req.Context() == nil {
+		t.Error("expected non-nil context")
+	}
+
+	if req.Context().Err() != nil {
+		t.Errorf("expected non-cancelled context, got %v", req.Context().Err())
+	}
+}