Start a library for cvsimport-related tests

For now the library just includes code (moved from t/t9600-cvsimport.sh)
that checks whether the prerequisites for "git cvsimport" are installed.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

t/lib-cvs.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+. ./test-lib.sh
+
+unset CVS_SERVER
+# for clean cvsps cache
+HOME=$(pwd)
+export HOME
+
+if ! type cvs >/dev/null 2>&1
+then
+	say 'skipping cvsimport tests, cvs not found'
+	test_done
+	exit
+fi
+
+cvsps_version=`cvsps -h 2>&1 | sed -ne 's/cvsps version //p'`
+case "$cvsps_version" in
+2.1 | 2.2*)
+	;;
+'')
+	say 'skipping cvsimport tests, cvsps not found'
+	test_done
+	exit
+	;;
+*)
+	say 'skipping cvsimport tests, unsupported cvsps version'
+	test_done
+	exit
+	;;
+esac

t/t9600-cvsimport.sh

@@ -1,37 +1,10 @@
 #!/bin/sh
 
 test_description='git cvsimport basic tests'
-. ./test-lib.sh
+. ./lib-cvs.sh
 
 CVSROOT=$(pwd)/cvsroot
 export CVSROOT
-unset CVS_SERVER
-# for clean cvsps cache
-HOME=$(pwd)
-export HOME
-
-if ! type cvs >/dev/null 2>&1
-then
-	say 'skipping cvsimport tests, cvs not found'
-	test_done
-	exit
-fi
-
-cvsps_version=`cvsps -h 2>&1 | sed -ne 's/cvsps version //p'`
-case "$cvsps_version" in
-2.1 | 2.2*)
-	;;
-'')
-	say 'skipping cvsimport tests, cvsps not found'
-	test_done
-	exit
-	;;
-*)
-	say 'skipping cvsimport tests, unsupported cvsps version'
-	test_done
-	exit
-	;;
-esac
 
 test_expect_success 'setup cvsroot' 'cvs init'