diff --git a/spec/pq/param_spec.cr b/spec/pq/param_spec.cr
deleted file mode 100644
index 5483124..0000000
--- a/spec/pq/param_spec.cr
+++ /dev/null
@@ -1,25 +0,0 @@
-require "spec"
-require "../../src/pq/param"
-
-private def it_encodes_array(value, encoded)
-  it "encodes #{value.class}" do
-    PQ::Param.encode_array(value).should eq encoded
-  end
-end
-
-describe PQ::Param do
-  describe "encoders" do
-    describe "#encode_array" do
-      it_encodes_array([] of String, "{}")
-      it_encodes_array([true, false, true], "{t,f,t}")
-      it_encodes_array(["t", "f", "t"], %({"t","f","t"}))
-      it_encodes_array([1, 2, 3], "{1,2,3}")
-      it_encodes_array([1.2, 3.4, 5.6], "{1.2,3.4,5.6}")
-      it_encodes_array([%(a), %(\\b~), %(c\\"d), %(\uFF8F)], %({"a","\\\\b~","c\\\\\\"d","\uFF8F"}))
-      it_encodes_array([%(this is a "slice").to_slice], %({"\\\\x7468697320697320612022736c69636522"}))
-      it_encodes_array(["baz, bar"], %({"baz, bar"}))
-      it_encodes_array(["foo}"], %({"foo}"}))
-      it_encodes_array([nil, nil], %({NULL,NULL}))
-    end
-  end
-end