main_test.go

package main

import (
	"testing"

	"github.com/Masterminds/semver/v3"
)

func TestNextVersion(t *testing.T) {
	tests := []struct {
		name                     string
		existingVersions         semver.Collection
		expectedLastVersion      *semver.Version
		expectedLastMinorVersion *semver.Version
		expectedNextVersion      *semver.Version
		prerelease               bool
	}{
		{
			name:                     "bump minor - no tags",
			existingVersions:         semver.Collection{},
			expectedNextVersion:      semver.MustParse("0.0.0"),
			expectedLastVersion:      nil,
			expectedLastMinorVersion: nil,
			prerelease:               false,
		},
		{
			name:                     "first prerelease - no tags",
			existingVersions:         semver.Collection{},
			expectedNextVersion:      semver.MustParse("0.0.0-beta.0"),
			expectedLastVersion:      nil,
			expectedLastMinorVersion: nil,
			prerelease:               true,
		},
		{
			name: "main version bump",
			existingVersions: semver.Collection{
				semver.MustParse("0.0.0"),
				semver.MustParse("0.1.0"),
			},
			expectedNextVersion:      semver.MustParse("0.2.0"),
			expectedLastVersion:      semver.MustParse("0.1.0"),
			expectedLastMinorVersion: semver.MustParse("0.1.0"),
		},
		{
			name: "new prerelease tag",
			existingVersions: semver.Collection{
				semver.MustParse("0.1.0"),
				semver.MustParse("0.2.0"),
				semver.MustParse("0.3.0-beta.0"),
				semver.MustParse("0.3.0"),
				semver.MustParse("0.4.0-beta.1"),
			},
			expectedNextVersion:      semver.MustParse("0.4.0-beta.2"),
			expectedLastVersion:      semver.MustParse("0.4.0-beta.1"),
			expectedLastMinorVersion: semver.MustParse("0.3.0"),
			prerelease:               true,
		},
		{
			name: "first prerelease tag",
			existingVersions: semver.Collection{
				semver.MustParse("0.1.0"),
			},
			expectedNextVersion:      semver.MustParse("0.2.0-beta.0"),
			expectedLastVersion:      semver.MustParse("0.1.0"),
			expectedLastMinorVersion: semver.MustParse("0.1.0"),
			prerelease:               true,
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			nextVersion, lastVersion, lastMinorversion, err := findVersions(tt.existingVersions, tt.prerelease)
			if err != nil {
				t.Fatalf("unexpected error: %v", err)
			}

			if tt.expectedNextVersion != nil && !nextVersion.Equal(tt.expectedNextVersion) {
				t.Errorf("expected next version %s, got %s", tt.expectedNextVersion, nextVersion)
			}

			if tt.expectedLastVersion != nil && !lastVersion.Equal(tt.expectedLastVersion) {
				t.Errorf("expected last version %s, got %s", tt.expectedLastVersion, lastVersion)
			}

			if tt.expectedLastMinorVersion != nil && !lastMinorversion.Equal(tt.expectedLastMinorVersion) {
				t.Errorf("expected last minor version %s, got %s", tt.expectedLastMinorVersion, lastMinorversion)
			}

		})
	}
}