tests: Simplify setup.

From gtest-parallel only a single file is used, which is not even required to
be installed in any way. Thus instead of asking the users to clone the repo,
simply download the one file as part of the Makefile.

.gitignore

@@ -55,6 +55,7 @@ trustdb.gpg
 .cache
 __pycache__
 *.pyc
+test/gtest_parallel.py
 test/python_tests/test?
 test/pEp_test_home
 test/TestDriver

test/Makefile

@@ -7,7 +7,7 @@ HERE:=$(CURDIR)
 
 GTEST_SRC_DIR:=/usr/src/gtest
 GTEST_INC_DIR:=$(GTEST_SRC_DIR)/include
-GTEST_PL:=$(HOME)/src/gtest-parallel/gtest_parallel.py
+GTEST_PL:=gtest_parallel.py
 
 include ../Makefile.conf # This should import changed values for the above from
                          # local.conf
@@ -83,9 +83,12 @@ endif
 
 .PHONY: all clean test
 
-all:
+all: gtest_parallel.py
 	make $(TARGET)
 
+gtest_parallel.py:
+	wget https://raw.githubusercontent.com/google/gtest-parallel/master/gtest_parallel.py
+
 %.d: %.cc
 	$(CXX) -MM $(CXXFLAGS) $(CPPFLAGS) $< \
 	| sed -e 's,\($*\)\.o[ :]*,\1.o $@: ,g' > $@
@@ -102,7 +105,7 @@ test: all
 
 clean:
 	$(RM) $(TARGET) $(TARGET).o $(TARGET).d $(OBJS) \
-		$(notdir $(basename $(OBJS))) $(DEPS)
+		$(notdir $(basename $(OBJS))) $(DEPS) gtest_parallel.py
 	$(RM) -rf ./pEp_test_home/*
 
 # If only the target 'clean' is given, do not generate and include the

test/README.md

@@ -17,14 +17,12 @@ In addition to the engine requirements, you will need:
 
   * `cmake`
   * `python3`
-  * `git` (for getting the `gtest-parallel` repository, unless you grab the
-  tarball from somewhere)
+  * `wget` (for getting the `gtest-parallel.py` file)
 
 ## Building the prerequisites
 
-The Engine test suite now requires (at least) two additional pieces to run:
+The Engine test suite now requires (at least) one additional pieces to run:
   * `googletest`
-  * `gtest-parallel`
 
 How this proceeds depends on your platform and whether or not you use a packaged
 distribution.
@@ -110,12 +108,6 @@ Ubuntu](https://www.eriksmistad.no/getting-started-with-google-test-on-ubuntu/))
   (i.e. the absolute path of where the `src` and `include` directories were 
   above - for me, `/Users/krista/googletest/googletest`).
   
-### Installing `gtest-parallel`
-
-Pick a source directory and put your `gtest-parallel` source there
-(e.g. via `git clone https://github.com/google/gtest-parallel.git`).
-
-We'll deal more with this when preparing to compile the test suite.
 
 ## Building the test suite
 
@@ -133,9 +125,9 @@ are:
   * `GTEST_INC_DIR`: This is where the include files for googletest are located
   (defaults to `$(GTEST_SRC_DIR)/include`)
   
-  * `GTEST_PL`: This is the full path to the *python file* for `gtest_parallel`
-  (default presumes you cloned it under `src` in your home directory, i.e. it is
-  `$(HOME)/src/gtest-parallel/gtest_parallel.py`)
+  * `GTEST_PL`: This is the full path to the *python file* `gtest_parallel.py`
+  (default presumes you let the Makefile download it into the test directory
+  i.e. it is `gtest_parallel.py`)
 
 ### Building