add cli tests of IM

diff --git a/tests/Makefile.am b/tests/Makefile.am
index cd11420..b7acfd8 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -43,6 +43,8 @@
 	tests/validate-stream.tap \
 	tests/validate-formats-in-memory.tap \
 	tests/validate-formats-on-disk.tap \
+	tests/cli-colorspace.tap \
+	tests/cli-pipe.tap \
 	tests/drawtest.tap \
 	tests/wandtest.tap