repl_test.go

package main

import (
	"testing"
)

func TestCleanInput(t *testing.T) {
	cases := []struct {
		input    string
		expected []string
	}{
		{
			input:    "  hello  world  ",
			expected: []string{"hello", "world"},
		},
		{
			input:    "foo bar baz",
			expected: []string{"foo", "bar", "baz"},
		},
		{
			input:    "THIS SHOULD BE LOWERCASE",
			expected: []string{"this", "should", "be", "lowercase"},
		},
		{
			input:    "   mixed   CASE   Input  ",
			expected: []string{"mixed", "case", "input"},
		},
		{
			input:    "",
			expected: []string{},
		},
		{
			input:    "fire\twater\n grass",
			expected: []string{"fire", "water", "grass"},
		},
		{
			input:    " \n\t ",
			expected: []string{},
		},
		{
			input:    " Eevee ",
			expected: []string{"eevee"},
		},
	}

	for _, c := range cases {
		actual := cleanInput(c.input)
		// Check the length of the actual slice against the expected slice
		actualSize := len(actual)
		expectedSize := len(c.expected)
		if actualSize != expectedSize {
			t.Errorf("resulting slice does not match number of items expected. expected [%v], got [%v]", expectedSize, actualSize)
		}
		// if they don't match, use t.Errorf to print an error message
		// and fail the test
		for i := range actual {
			word := actual[i]
			expectedWord := c.expected[i]
			// Check each word in the slice
			// if they don't match, use t.Errorf to print an error message
			// and fail the test
			if word != expectedWord {
				t.Errorf("provided word [%s] does not match expected word %s", word, expectedWord)
			}
		}
	}

}