test(e2e): Add test for `boundary version` (#2933)

During testing, there was an issue observed where some additional characters were added to the version output. This test validates that output.

testing/internal/e2e/tests/static/version_test.go

@@ -0,0 +1,38 @@
+// Copyright (c) HashiCorp, Inc.
+// SPDX-License-Identifier: MPL-2.0
+
+package static_test
+
+import (
+	"context"
+	"encoding/json"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/hashicorp/boundary/testing/internal/e2e"
+	"github.com/hashicorp/boundary/version"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// TestCliVersion validates the output from `boundary version`
+func TestCliVersion(t *testing.T) {
+	e2e.MaybeSkipTest(t)
+
+	ctx := context.Background()
+	output := e2e.RunCommand(ctx, "boundary", e2e.WithArgs("version", "-format", "json"))
+	require.NoError(t, output.Err, string(output.Stderr))
+
+	var versionResult version.Info
+	err := json.Unmarshal(output.Stdout, &versionResult)
+	require.NoError(t, err)
+
+	parts := strings.Split(versionResult.Version, ".")
+	assert.Equal(t, 3, len(parts), "Incorrect number of parts in version %q. EXPECTED: 3, ACTUAL: %d", versionResult.Version, len(parts))
+
+	for _, v := range parts {
+		_, err := strconv.Atoi(v)
+		assert.NoError(t, err, "Invalid value in version %q. EXPECTED: Number, ACTUAL: %s", versionResult.Version, v)
+	}
+}