From 0b0690ca53ae3a98a8648c8ff168e3d7d2405c79 Mon Sep 17 00:00:00 2001
From: Benjamin Kietzman <bengilgit@gmail.com>
Date: Thu, 5 Mar 2020 11:57:33 -0500
Subject: [PATCH] ARROW-8014: [C++] Provide Cmake targets exercising tests with
 a label

---
 cpp/cmake_modules/BuildUtils.cmake | 15 +++++++++++++++
 cpp/src/arrow/CMakeLists.txt       |  2 --
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/cpp/cmake_modules/BuildUtils.cmake b/cpp/cmake_modules/BuildUtils.cmake
index dc441faf9f494..e4f835586ab68 100644
--- a/cpp/cmake_modules/BuildUtils.cmake
+++ b/cpp/cmake_modules/BuildUtils.cmake
@@ -657,6 +657,21 @@ function(ADD_TEST_CASE REL_TEST_NAME)
     set(ARG_LABELS unittest)
   endif()
 
+  foreach(LABEL ${ARG_LABELS})
+    # ensure there is a cmake target which exercises tests with this LABEL
+    set(LABEL_TEST_NAME "test-label-${LABEL}")
+    if(NOT TARGET ${LABEL_TEST_NAME})
+      add_custom_target(${LABEL_TEST_NAME}
+                        ctest
+                        -L
+                        "${LABEL}"
+                        --output-on-failure
+                        USES_TERMINAL)
+    endif()
+    # ensure the test is (re)built before the LABEL test runs
+    add_dependencies(${LABEL_TEST_NAME} ${TEST_NAME})
+  endforeach()
+
   set_property(TEST ${TEST_NAME} APPEND PROPERTY LABELS ${ARG_LABELS})
 endfunction()
 
diff --git a/cpp/src/arrow/CMakeLists.txt b/cpp/src/arrow/CMakeLists.txt
index 743c93cadf132..70a67d29fd9cb 100644
--- a/cpp/src/arrow/CMakeLists.txt
+++ b/cpp/src/arrow/CMakeLists.txt
@@ -45,8 +45,6 @@ function(ADD_ARROW_TEST REL_TEST_NAME)
 
   if(ARG_LABELS)
     set(LABELS ${ARG_LABELS})
-  else()
-    set(LABELS "arrow-tests")
   endif()
 
   # Because of https://gitlab.kitware.com/cmake/cmake/issues/20289,