normalize_url_test.go

package main

import (
  "testing"
  "strings"
)

func TestNormalizeURL(t *testing.T){
 	tests := []struct {
		name          string
		inputURL      string
		expected      string
		errorContains string
	}{
		{
			name:     "remove scheme",
			inputURL: "https://blog.boot.dev/path",
			expected: "blog.boot.dev/path",
		},
		{
			name:     "remove trailing slash",
			inputURL: "https://blog.boot.dev/path/",
			expected: "blog.boot.dev/path",
		},
		{
			name:     "lowercase capital letters",
			inputURL: "https://BLOG.boot.dev/PATH",
			expected: "blog.boot.dev/path",
		},
		{
			name:     "remove scheme and capitals and trailing slash",
			inputURL: "http://BLOG.boot.dev/path/",
			expected: "blog.boot.dev/path",
		},
		{
			name:          "handle invalid URL",
			inputURL:      `:\\invalidURL`,
			expected:      "",
			errorContains: "couldn't parse url",
		},
	}
  for i, tc := range tests{
    t.Run(tc.name, func (t *testing.T){
      actual, err := normalizeURL(tc.inputURL)
      if err != nil && !strings.Contains(err.Error(), tc.errorContains){
        t.Errorf("Test %v - '%s' FAIL: unexpected error: %v", i, tc.name, err)
        return
      }
      if actual != tc.expected {
				t.Errorf("Test %v - %s FAIL: expected URL: %v, actual: %v", i, tc.name, tc.expected, actual)
			} 

    })
  }
 
}