tests: use Git's test framework

This allows tests to run in parallel as well as letting us use "prove"
or another TAP harness to run the tests.

Git's test framework requires Git to be fully built before letting any
tests run, so add a new target to the top-level Makefile which builds
all of Git instead of just libgit.a and make the "test" target depend on
that.

Signed-off-by: John Keeping <john@keeping.me.uk>

tests/t0105-commit.sh

@@ -1,37 +1,36 @@
 #!/bin/sh
 
+test_description='Check content on commit page'
 . ./setup.sh
 
-prepare_tests "Check content on commit page"
+test_expect_success 'generate foo/commit' 'cgit_url "foo/commit" >tmp'
+test_expect_success 'find tree link' 'grep "<a href=./foo/tree/.>" tmp'
+test_expect_success 'find parent link' 'grep -E "<a href=./foo/commit/\?id=.+>" tmp'
 
-run_test 'generate foo/commit' 'cgit_url "foo/commit" >trash/tmp'
-run_test 'find tree link' 'grep "<a href=./foo/tree/.>" trash/tmp'
-run_test 'find parent link' 'grep -E "<a href=./foo/commit/\?id=.+>" trash/tmp'
-
-run_test 'find commit subject' '
-	grep "<div class=.commit-subject.>commit 5<" trash/tmp
+test_expect_success 'find commit subject' '
+	grep "<div class=.commit-subject.>commit 5<" tmp
 '
 
-run_test 'find commit msg' 'grep "<div class=.commit-msg.></div>" trash/tmp'
-run_test 'find diffstat' 'grep "<table summary=.diffstat. class=.diffstat.>" trash/tmp'
+test_expect_success 'find commit msg' 'grep "<div class=.commit-msg.></div>" tmp'
+test_expect_success 'find diffstat' 'grep "<table summary=.diffstat. class=.diffstat.>" tmp'
 
-run_test 'find diff summary' '
-	grep "1 files changed, 1 insertions, 0 deletions" trash/tmp
+test_expect_success 'find diff summary' '
+	grep "1 files changed, 1 insertions, 0 deletions" tmp
 '
 
-run_test 'get root commit' '
-	root=$(cd trash/repos/foo && git rev-list --reverse HEAD | head -1) &&
-	cgit_url "foo/commit&id=$root" >trash/tmp &&
-	grep "</html>" trash/tmp
+test_expect_success 'get root commit' '
+	root=$(cd repos/foo && git rev-list --reverse HEAD | head -1) &&
+	cgit_url "foo/commit&id=$root" >tmp &&
+	grep "</html>" tmp
 '
 
-run_test 'root commit contains diffstat' '
-	grep "<a href=./foo/diff/file-1.id=[0-9a-f]\{40\}.>file-1</a>" trash/tmp
+test_expect_success 'root commit contains diffstat' '
+	grep "<a href=./foo/diff/file-1.id=[0-9a-f]\{40\}.>file-1</a>" tmp
 '
 
-run_test 'root commit contains diff' '
-	grep ">diff --git a/file-1 b/file-1<" trash/tmp &&
-	grep "<div class=.add.>+1</div>" trash/tmp
+test_expect_success 'root commit contains diff' '
+	grep ">diff --git a/file-1 b/file-1<" tmp &&
+	grep "<div class=.add.>+1</div>" tmp
 '
 
-tests_done
+test_done