find_package: Test error and warning messages in failure cases

Add a "CMakeCommands.find_package" test to run CMake on a bunch of cases
in which find_package fails.  Check that the process return code and
warning/error messages are as expected.  Record expected test output in
corresponding files for reference by the check.  These files will also
serve as a reference for the message text in each case.

Tests/CMakeCommands/CMakeLists.txt

@@ -8,3 +8,4 @@ macro(add_CMakeCommands_test test)
 endmacro()
 
 add_CMakeCommands_test(build_command)
+add_CMakeCommands_test(find_package)

Tests/CMakeCommands/find_package/CMakeLists.txt

+cmake_minimum_required(VERSION 2.8)
+project(${TEST} NONE)
+include(${TEST}.cmake)

Tests/CMakeCommands/find_package/MissingConfig-stderr.txt

+CMake Warning at MissingConfig.cmake:1 \(find_package\):
+  Could not find a package configuration file provided by "NotHere" with any
+  of the following names:
+
+    NotHereConfig.cmake
+    nothere-config.cmake
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/CMakeCommands/find_package/MissingConfig.cmake

+find_package(NotHere CONFIG)

Tests/CMakeCommands/find_package/MissingConfigOneName-stderr.txt

+CMake Warning at MissingConfigOneName.cmake:1 \(find_package\):
+  Could not find a package configuration file named "NotHereConfig.cmake"
+  provided by package "NotHere".
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/CMakeCommands/find_package/MissingConfigOneName.cmake

+find_package(NotHere CONFIGS NotHereConfig.cmake)

Tests/CMakeCommands/find_package/MissingConfigRequired-result.txt

+1

Tests/CMakeCommands/find_package/MissingConfigRequired-stderr.txt

+CMake Error at MissingConfigRequired.cmake:1 \(find_package\):
+  Could not find a package configuration file provided by "NotHere" with any
+  of the following names:
+
+    NotHereConfig.cmake
+    nothere-config.cmake
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/CMakeCommands/find_package/MissingConfigRequired.cmake

+find_package(NotHere CONFIG REQUIRED)

Tests/CMakeCommands/find_package/MissingConfigVersion-stderr.txt

+CMake Warning at MissingConfigVersion.cmake:1 \(find_package\):
+  Could not find a package configuration file provided by "NotHere"
+  \(requested version 1\.2\) with any of the following names:
+
+    NotHereConfig.cmake
+    nothere-config.cmake
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/CMakeCommands/find_package/MissingConfigVersion.cmake

+find_package(NotHere 1.2 CONFIG)

Tests/CMakeCommands/find_package/MissingModule-stderr.txt

+CMake Warning at MissingModule.cmake:1 \(find_package\):
+  No "FindNotHere.cmake" found in CMAKE_MODULE_PATH.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+
+
+CMake Warning \(dev\) at MissingModule.cmake:1 \(find_package\):
+  FindNotHere.cmake must either be part of this project itself, in this case
+  adjust CMAKE_MODULE_PATH so that it points to the correct location inside
+  its source tree.
+
+  Or it must be installed by a package which has already been found via
+  find_package\(\).  In this case make sure that package has indeed been found
+  and adjust CMAKE_MODULE_PATH to contain the location where that package has
+  installed FindNotHere.cmake.  This must be a location provided by that
+  package.  This error in general means that the buildsystem of this project
+  is relying on a Find-module without ensuring that it is actually available.
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.

Tests/CMakeCommands/find_package/MissingModule.cmake

+find_package(NotHere MODULE)

Tests/CMakeCommands/find_package/MissingModuleRequired-result.txt

+1

Tests/CMakeCommands/find_package/MissingModuleRequired-stderr.txt

+CMake Error at MissingModuleRequired.cmake:1 \(find_package\):
+  No "FindNotHere.cmake" found in CMAKE_MODULE_PATH.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+
+
+CMake Warning \(dev\) at MissingModuleRequired.cmake:1 \(find_package\):
+  FindNotHere.cmake must either be part of this project itself, in this case
+  adjust CMAKE_MODULE_PATH so that it points to the correct location inside
+  its source tree.
+
+  Or it must be installed by a package which has already been found via
+  find_package\(\).  In this case make sure that package has indeed been found
+  and adjust CMAKE_MODULE_PATH to contain the location where that package has
+  installed FindNotHere.cmake.  This must be a location provided by that
+  package.  This error in general means that the buildsystem of this project
+  is relying on a Find-module without ensuring that it is actually available.
+
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)
+This warning is for project developers.  Use -Wno-dev to suppress it.

Tests/CMakeCommands/find_package/MissingModuleRequired.cmake

+find_package(NotHere MODULE REQUIRED)

Tests/CMakeCommands/find_package/MissingNormal-stderr.txt

+CMake Warning at MissingNormal.cmake:1 \(find_package\):
+  By not providing "FindNotHere.cmake" in CMAKE_MODULE_PATH this project has
+  asked CMake to find a package configuration file provided by "NotHere", but
+  CMake did not find one.
+
+  Could not find a package configuration file provided by "NotHere" with any
+  of the following names:
+
+    NotHereConfig.cmake
+    nothere-config.cmake
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)

Tests/CMakeCommands/find_package/MissingNormal.cmake

+find_package(NotHere)

Tests/CMakeCommands/find_package/MissingNormalRequired-result.txt

+1

Tests/CMakeCommands/find_package/MissingNormalRequired-stderr.txt

+CMake Error at MissingNormalRequired.cmake:1 \(find_package\):
+  By not providing "FindNotHere.cmake" in CMAKE_MODULE_PATH this project has
+  asked CMake to find a package configuration file provided by "NotHere", but
+  CMake did not find one.
+
+  Could not find a package configuration file provided by "NotHere" with any
+  of the following names:
+
+    NotHereConfig.cmake
+    nothere-config.cmake
+
+  Add the installation prefix of "NotHere" to CMAKE_PREFIX_PATH or set
+  "NotHere_DIR" to a directory containing one of the above files.  If
+  "NotHere" provides a separate development package or SDK, be sure it has
+  been installed.
+Call Stack \(most recent call first\):
+  CMakeLists.txt:3 \(include\)