cmake: apply cmake-format

Use cmake-format from:
https://github.com/cheshirekow/cmake_format
to enforce a consistent style.

Extra line breaks to work around:
https://github.com/cheshirekow/cmake_format/issues/33

Upstream bug for overzealous 'if' expansion:
https://github.com/cheshirekow/cmake_format/issues/34

Change-Id: Ib709f06ce37e9b89ddaf3eb0b28612aabbe36aed
diff --git a/test/test_data_util.cmake b/test/test_data_util.cmake
index 13d96c3..a030d08 100644
--- a/test/test_data_util.cmake
+++ b/test/test_data_util.cmake
@@ -1,13 +1,13 @@
-##
-## Copyright (c) 2017, Alliance for Open Media. All rights reserved
-##
-## This source code is subject to the terms of the BSD 2 Clause License and
-## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
-## was not distributed with this source code in the LICENSE file, you can
-## obtain it at www.aomedia.org/license/software. If the Alliance for Open
-## Media Patent License 1.0 was not distributed with this source code in the
-## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
-##
+#
+# Copyright (c) 2017, Alliance for Open Media. All rights reserved
+#
+# This source code is subject to the terms of the BSD 2 Clause License and the
+# Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was
+# not distributed with this source code in the LICENSE file, you can obtain it
+# at www.aomedia.org/license/software. If the Alliance for Open Media Patent
+# License 1.0 was not distributed with this source code in the PATENTS file, you
+# can obtain it at www.aomedia.org/license/patent.
+#
 
 set(AOM_TEST_DATA_FILE_NAMES
     "hantro_collage_w352h288.yuv"
@@ -28,38 +28,33 @@
     "screendata.y4m"
     "niklas_640_480_30.yuv")
 
-if (CONFIG_DECODE_PERF_TESTS AND CONFIG_AV1_ENCODER)
-  set(AOM_TEST_DATA_FILE_NAMES
-      ${AOM_TEST_DATA_FILE_NAMES}
+if(CONFIG_DECODE_PERF_TESTS AND CONFIG_AV1_ENCODER)
+  set(AOM_TEST_DATA_FILE_NAMES ${AOM_TEST_DATA_FILE_NAMES}
       "niklas_1280_720_30.yuv")
-endif ()
+endif()
 
-if (CONFIG_ENCODE_PERF_TESTS AND CONFIG_AV1_ENCODER)
-  set(AOM_TEST_DATA_FILE_NAMES
-      ${AOM_TEST_DATA_FILE_NAMES}
-      "desktop_640_360_30.yuv"
-      "kirland_640_480_30.yuv"
-      "macmarcomoving_640_480_30.yuv"
-      "macmarcostationary_640_480_30.yuv"
-      "niklas_1280_720_30.yuv"
-      "tacomanarrows_640_480_30.yuv"
+if(CONFIG_ENCODE_PERF_TESTS AND CONFIG_AV1_ENCODER)
+  set(AOM_TEST_DATA_FILE_NAMES ${AOM_TEST_DATA_FILE_NAMES}
+      "desktop_640_360_30.yuv" "kirland_640_480_30.yuv"
+      "macmarcomoving_640_480_30.yuv" "macmarcostationary_640_480_30.yuv"
+      "niklas_1280_720_30.yuv" "tacomanarrows_640_480_30.yuv"
       "tacomasmallcameramovement_640_480_30.yuv"
       "thaloundeskmtg_640_480_30.yuv")
-endif ()
+endif()
 
 # Parses test/test-data.sha1 and writes captured file names and checksums to
 # $out_files and $out_checksums as lists.
-function (make_test_data_lists test_data_file out_files out_checksums)
-  if (NOT test_data_file OR NOT EXISTS "${test_data_file}")
+function(make_test_data_lists test_data_file out_files out_checksums)
+  if(NOT test_data_file OR NOT EXISTS "${test_data_file}")
     message(FATAL_ERROR "Test info file missing or empty (${test_data_file})")
-  endif ()
+  endif()
 
   # Read $test_data_file into $files_and_checksums. $files_and_checksums becomes
   # a list with an entry for each line from $test_data_file.
   file(STRINGS "${test_data_file}" files_and_checksums)
 
   # Iterate over the list of lines and split it into $checksums and $filenames.
-  foreach (line ${files_and_checksums})
+  foreach(line ${files_and_checksums})
     string(FIND "${line}" " *" delim_pos)
 
     math(EXPR filename_pos "${delim_pos} + 2")
@@ -67,55 +62,55 @@
     string(SUBSTRING "${line}" ${filename_pos} -1 filename)
 
     list(FIND AOM_TEST_DATA_FILE_NAMES ${filename} list_index)
-    if (NOT ${list_index} EQUAL -1)
+    if(NOT ${list_index} EQUAL -1)
+
       # Include the name and checksum in output only when the file is needed.
       set(checksums ${checksums} ${checksum})
       set(filenames ${filenames} ${filename})
-    endif ()
-  endforeach ()
+    endif()
+  endforeach()
 
   list(LENGTH filenames num_files)
   list(LENGTH checksums num_checksums)
-  if (NOT checksums OR NOT filenames OR NOT num_files EQUAL num_checksums)
+  if(NOT checksums OR NOT filenames OR NOT num_files EQUAL num_checksums)
     message(FATAL_ERROR "Parsing of ${test_data_file} failed.")
-  endif ()
+  endif()
 
   set(${out_checksums} ${checksums} PARENT_SCOPE)
   set(${out_files} ${filenames} PARENT_SCOPE)
-endfunction ()
+endfunction()
 
 # Appends each file name in $test_files to $test_dir and adds the result path to
 # $out_path_list.
-function (expand_test_file_paths test_files test_dir out_path_list)
-  foreach (filename ${${test_files}})
+function(expand_test_file_paths test_files test_dir out_path_list)
+  foreach(filename ${${test_files}})
     set(path_list ${path_list} "${test_dir}/${filename}")
-  endforeach ()
+  endforeach()
   set(${out_path_list} ${path_list} PARENT_SCOPE)
-endfunction ()
+endfunction()
 
-function (check_file local_path expected_checksum out_needs_update)
-  if (EXISTS "${local_path}")
+function(check_file local_path expected_checksum out_needs_update)
+  if(EXISTS "${local_path}")
     file(SHA1 "${local_path}" file_checksum)
-  else ()
+  else()
     set(${out_needs_update} 1 PARENT_SCOPE)
-    return ()
-  endif ()
+    return()
+  endif()
 
-  if ("${file_checksum}" STREQUAL "${expected_checksum}")
+  if("${file_checksum}" STREQUAL "${expected_checksum}")
     unset(${out_needs_update} PARENT_SCOPE)
-  else ()
+  else()
     set(${out_needs_update} 1 PARENT_SCOPE)
-    return ()
-  endif ()
+    return()
+  endif()
   message("${local_path} up to date.")
-endfunction ()
+endfunction()
 
 # Downloads data from $file_url, confirms that $file_checksum matches, and
 # writes it to $local_path.
-function (download_test_file file_url file_checksum local_path)
+function(download_test_file file_url file_checksum local_path)
   message("Downloading ${file_url} ...")
-  file(DOWNLOAD "${file_url}" "${local_path}"
-       SHOW_PROGRESS
+  file(DOWNLOAD "${file_url}" "${local_path}" SHOW_PROGRESS
        EXPECTED_HASH SHA1=${file_checksum})
   message("Download of ${file_url} complete.")
-endfunction ()
+endfunction()