feat(integrations): align linear parity

internal/handler/api/v1/linear_integration_handler_test.go

@@ -181,6 +181,20 @@ func TestLinearIntegration_SearchIssue_BadAccountID(t *testing.T) {
 	assert.Contains(t, errBody["message"], "invalid account_id")
 }
 
+func TestLinearIntegration_SearchIssue_BlankQuery(t *testing.T) {
+	r := setupLinearIntegrationRouter()
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/integrations/linear/search_issue", nil)
+	r.ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusUnprocessableEntity, w.Code)
+
+	var resp map[string]interface{}
+	json.Unmarshal(w.Body.Bytes(), &resp)
+	assert.Equal(t, "Specify search string with parameter q", resp["error"])
+}
+
 func TestLinearIntegration_GetLinkedIssues_BadAccountID(t *testing.T) {
 	r := setupLinearIntegrationRouter()