Added the url modules test files.

Added the new url module test file. This replaces the original
helpers_test.go file.

The TestUrlPrep test currently fails.

The only minor change to url.go is to add some trace printf's to
UrlPrep.

helpers/url.go

@@ -81,6 +81,7 @@ func MakePermalink(host, plink string) *url.URL {
 func UrlPrep(ugly bool, in string) string {
 	if ugly {
 		x := Uglify(SanitizeUrl(in))
+		fmt.Printf("Ugly case. Returning x = %q\n", x)
 		return x
 	} else {
 		x := PrettifyUrl(SanitizeUrl(in))
@@ -89,8 +90,10 @@ func UrlPrep(ugly bool, in string) string {
 		}
 		url, err := purell.NormalizeURLString(x, purell.FlagAddTrailingSlash)
 		if err != nil {
+			fmt.Printf("ERROR returned by NormalizeURLString. Returning in = %q\n", in)
 			return in
 		}
+		fmt.Printf("NO error returning url = %q\n", url)
 		return url
 	}
 }

helpers/url_test.go

@@ -0,0 +1,99 @@
+package helpers
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestUrlize(t *testing.T) {
+	tests := []struct {
+		input    string
+		expected string
+	}{
+		{"  foo bar  ", "foo-bar"},
+		{"foo.bar/foo_bar-foo", "foo.bar/foo_bar-foo"},
+		{"foo,bar:foo%bar", "foobarfoobar"},
+		{"foo/bar.html", "foo/bar.html"},
+		{"трям/трям", "%D1%82%D1%80%D1%8F%D0%BC/%D1%82%D1%80%D1%8F%D0%BC"},
+	}
+
+	for _, test := range tests {
+		output := Urlize(test.input)
+		if output != test.expected {
+			t.Errorf("Expected %#v, got %#v\n", test.expected, output)
+		}
+	}
+}
+
+func TestMakePermalink(t *testing.T) {
+	type test struct {
+		host, link, output string
+	}
+
+	data := []test{
+		{"http://abc.com/foo", "post/bar", "http://abc.com/foo/post/bar"},
+		{"http://abc.com/foo/", "post/bar", "http://abc.com/foo/post/bar"},
+		{"http://abc.com", "post/bar", "http://abc.com/post/bar"},
+		{"http://abc.com", "bar", "http://abc.com/bar"},
+		{"http://abc.com/foo/bar", "post/bar", "http://abc.com/foo/bar/post/bar"},
+		{"http://abc.com/foo/bar", "post/bar/", "http://abc.com/foo/bar/post/bar/"},
+	}
+
+	for i, d := range data {
+		output := MakePermalink(d.host, d.link).String()
+		if d.output != output {
+			t.Errorf("Test #%d failed. Expected %q got %q", i, d.output, output)
+		}
+	}
+}
+
+func TestUrlPrep(t *testing.T) {
+	type test struct {
+		ugly   bool
+		input  string
+		output string
+	}
+
+	data := []test{
+		{false, "/section/name.html", "/section/name/index.html"},
+		{true, "/section/name/index.html", "/section/name.html"},
+	}
+	for i, d := range data {
+		output := UrlPrep(d.ugly, d.input)
+		if d.output != output {
+			t.Errorf("Test #%d failed. Expected %q got %q", i, d.output, output)
+		}
+	}
+
+}
+
+func TestPretty(t *testing.T) {
+	assert.Equal(t, PrettifyPath("/section/name.html"), "/section/name/index.html")
+	assert.Equal(t, PrettifyPath("/section/sub/name.html"), "/section/sub/name/index.html")
+	assert.Equal(t, PrettifyPath("/section/name/"), "/section/name/index.html")
+	assert.Equal(t, PrettifyPath("/section/name/index.html"), "/section/name/index.html")
+	assert.Equal(t, PrettifyPath("/index.html"), "/index.html")
+	assert.Equal(t, PrettifyPath("/name.xml"), "/name/index.xml")
+	assert.Equal(t, PrettifyPath("/"), "/")
+	assert.Equal(t, PrettifyPath(""), "/")
+	assert.Equal(t, PrettifyUrl("/section/name.html"), "/section/name")
+	assert.Equal(t, PrettifyUrl("/section/sub/name.html"), "/section/sub/name")
+	assert.Equal(t, PrettifyUrl("/section/name/"), "/section/name")
+	assert.Equal(t, PrettifyUrl("/section/name/index.html"), "/section/name")
+	assert.Equal(t, PrettifyUrl("/index.html"), "/")
+	assert.Equal(t, PrettifyUrl("/name.xml"), "/name/index.xml")
+	assert.Equal(t, PrettifyUrl("/"), "/")
+	assert.Equal(t, PrettifyUrl(""), "/")
+}
+
+func TestUgly(t *testing.T) {
+	assert.Equal(t, Uglify("/section/name.html"), "/section/name.html")
+	assert.Equal(t, Uglify("/section/sub/name.html"), "/section/sub/name.html")
+	assert.Equal(t, Uglify("/section/name/"), "/section/name.html")
+	assert.Equal(t, Uglify("/section/name/index.html"), "/section/name.html")
+	assert.Equal(t, Uglify("/index.html"), "/index.html")
+	assert.Equal(t, Uglify("/name.xml"), "/name.xml")
+	assert.Equal(t, Uglify("/"), "/")
+	assert.Equal(t, Uglify(""), "/")
+}