counter/main_test.go at main · dreamsofcode-io/counter · GitHub

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package main_test

import (
	"testing"

	counter "github.com/dreamsofcode-io/counter"
)

func TestAddCounts(t *testing.T) {
	testCases := []struct {
		name   string
		inputA counter.Counts
		inputB counter.Counts
		wants  counter.Counts
	}{
		{
			name: "Adding two counts toghether",
			inputA: counter.Counts{
				Bytes: 1,
				Words: 10,
				Lines: 14,
			},
			inputB: counter.Counts{
				Bytes: 3,
				Words: 16,
				Lines: 22,
			},
			wants: counter.Counts{
				Bytes: 4,
				Words: 26,
				Lines: 36,
			},
		},
		{
			name:   "Empty A value",
			inputA: counter.Counts{},
			inputB: counter.Counts{
				Bytes: 10,
				Words: 3,
				Lines: 1,
			},
			wants: counter.Counts{
				Bytes: 10,
				Words: 3,
				Lines: 1,
			},
		},
		{
			name:   "Empty B value",
			inputA: counter.Counts{},
			inputB: counter.Counts{
				Bytes: 17,
				Words: 5,
				Lines: 2,
			},
			wants: counter.Counts{
				Bytes: 17,
				Words: 5,
				Lines: 2,
			},
		},
	}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			res := counter.AddCounts(tc.inputA, tc.inputB)

			if res.Bytes != tc.wants.Bytes {
				t.Log("Bytes value incorrect: wanted:", tc.wants.Bytes, "got:", res.Bytes)
				t.Fail()
			}

			if res.Words != tc.wants.Words {
				t.Log("Words value incorrect: wanted:", tc.wants.Words, "got:", res.Words)
				t.Fail()
			}

			if res.Lines != tc.wants.Lines {
				t.Log("Lines value incorrect: wanted:", tc.wants.Lines, "got:", res.Lines)
				t.Fail()
			}
		})
	}
}