Read test specific configure arguments from environment

Reading configure arguments for tests from environment allows control
of CMake args from outside of the module itself. TEST_CONFIGURE_ARGS is
read and appended to host tests build and TARGET_TEST_CONFIGURE_ARGS
respectively for target's tests.

Change-Id: I8270b0254525aec24f7614cba2b90b291e5eb3d2
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

coin/instructions/cmake_build_and_upload_test_artifacts.yaml

@@ -8,9 +8,21 @@ instructions:
     directory: "{{.SourceDir}}_standalone_tests"
   - type: ChangeDirectory
     directory: "{{.BuildDir}}"
+  - type: AppendToEnvironmentVariable
+    variableName: COIN_CMAKE_ARGS
+    variableValue: " -DQT_BUILD_STANDALONE_TESTS=ON -DCMAKE_AUTOGEN_VERBOSE=ON -S {{.SourceDir}} -B ."
+    disable_if:
+      condition: runtime
+      env_var: COIN_CMAKE_ARGS
+      equals_value: null
   - type: EnvironmentVariable
     variableName: COIN_CMAKE_ARGS
     variableValue: "-DQT_BUILD_STANDALONE_TESTS=ON -DCMAKE_AUTOGEN_VERBOSE=ON -S {{.SourceDir}} -B ."
+    enable_if:
+      condition: runtime
+      env_var: COIN_CMAKE_ARGS
+      equals_value: null
+
   - !include "{{qt/qtbase}}/call_cmake_for_standalone_tests.yaml"
   - type: ExecuteCommand
     command: "{{.Env.TESTS_ENV_PREFIX}} cmake --build . --parallel -v"

coin/instructions/cmake_build_and_upload_test_artifacts_host.yaml

@@ -8,6 +8,9 @@ instructions:
       - type: EnvironmentVariable
         variableName: INSTALL_DIR_FOR_CMAKE_TESTS
         variableValue: "{{.InstallDir}}"
+      - type: EnvironmentVariable
+        variableName: COIN_CMAKE_ARGS
+        variableValue: "{{.Env.TEST_CONFIGURE_ARGS}}"
       - !include "{{qt/qtbase}}/cmake_build_and_upload_test_artifacts.yaml"
     disable_if:
       condition: property

coin/instructions/cmake_build_and_upload_test_artifacts_target.yaml

@@ -19,6 +19,9 @@ instructions:
           condition: property
           property: host.os
           equals_value: Windows
+      - type: EnvironmentVariable
+        variableName: COIN_CMAKE_ARGS
+        variableValue: "{{.Env.TARGET_TEST_CONFIGURE_ARGS}}"
       - !include "{{qt/qtbase}}/cmake_build_and_upload_test_artifacts.yaml"
     disable_if:
       condition: property