diff --git a/tests/polezero/pz2.cir b/tests/polezero/pz2.cir
new file mode 100644
index 000000000..8f78b199c
--- /dev/null
+++ b/tests/polezero/pz2.cir
@@ -0,0 +1,24 @@
+test pz
+iin	1	0	ac
+r1	1	0	1.019524e+9Ohms
+l1	1	0	1H
+
+gm2	2	0	1 0 1
+r2	2	0	8.296965e+08Ohms
+l2	2	0	1H
+
+gm3	3	0	2 0 1
+r3	3	0	8.652054e+07Ohms
+l3	3	0	1H
+
+gm4	4	0	3 0 1
+r4	4	0	1.060594e+07Ohms
+l4	4	0	1H
+
+*gm5	5	0	4 0 1
+*r5	5	0	10Ohms
+*l5	5	0	0.66mH
+
+.pz	1 0	4 0	cur pol
+.print pz all
+.end
diff --git a/tests/polezero/pzt.cir b/tests/polezero/pzt.cir
new file mode 100644
index 000000000..b75fa38e9
--- /dev/null
+++ b/tests/polezero/pzt.cir
@@ -0,0 +1,24 @@
+test pz
+iin	1	0	ac
+r1	1	0	1Ohms
+l1	1	0	0.05H
+
+gm2	2	0	1 0 1
+r2	2	0	1Ohms
+l2	2	0	0.05H
+
+gm3	3	0	2 0 1
+r3	3	0	1Ohms
+l3	3	0	0.05H
+
+*gm4	4	0	3 0 1
+*r4	4	0	1Ohms
+*l4	4	0	0.05H
+
+*gm5	5	0	4 0 1
+*r5	5	0	10Ohms
+*l5	5	0	0.66mH
+
+.pz	1 0	3 0	cur pol
+.print pz all
+.end
diff --git a/tests/polezero/simplepz.cir b/tests/polezero/simplepz.cir
new file mode 100644
index 000000000..fa618a6f4
--- /dev/null
+++ b/tests/polezero/simplepz.cir
@@ -0,0 +1,7 @@
+test circuit #1 for pz analysis:high pass filter
+r1 1 0 1k
+r2 2 0 1k
+c1 1 2 1.0e-12
+.pz 1 0 2 0 cur pz
+.print pz all
+.end