Add test for refunc

Author: zombiezen

ext/refunc/refunc_test.go

@@ -0,0 +1,58 @@
+// Copyright 2023 Ross Light
+// SPDX-License-Identifier: ISC
+
+package refunc
+
+import (
+	"testing"
+
+	"zombiezen.com/go/sqlite"
+)
+
+func TestImpl(t *testing.T) {
+	c, err := sqlite.OpenConn("", sqlite.OpenMemory|sqlite.OpenReadWrite)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		if err := c.Close(); err != nil {
+			t.Error(err)
+		}
+	}()
+
+	if err := Register(c); err != nil {
+		t.Error("Register:", err)
+	}
+
+	tests := []struct {
+		x, y string
+		want bool
+	}{
+		{"", "foo", false},
+		{"foo", "", true},
+		{"foo", "^fo*$", true},
+		{"bar", "^fo*$", false},
+	}
+	stmt := c.Prep("VALUES (:x REGEXP :y);")
+	for _, test := range tests {
+		stmt.SetText(":x", test.x)
+		stmt.SetText(":y", test.y)
+		rowReturned, err := stmt.Step()
+		if err != nil {
+			t.Errorf("%q REGEXP %q: %v", test.x, test.y, err)
+			stmt.Reset()
+			continue
+		}
+		if !rowReturned {
+			t.Errorf("%q REGEXP %q: no row returned", test.x, test.y)
+			stmt.Reset()
+			continue
+		}
+		if got := stmt.ColumnBool(0); got != test.want {
+			t.Errorf("%q REGEXP %q = %t; want %t", test.x, test.y, got, test.want)
+		}
+		if err := stmt.Reset(); err != nil {
+			t.Errorf("%q REGEXP %q: %v", test.x, test.y, err)
+		}
+	}
+}