fix: Improve solver tests

- Make FakeRESTMapper comparable
- Add Comparer for WaitTask
- Add Asserter to allow pre-configuring comparison options for Equal/NotEqual
- Update solver tests to use Asserter for task list comparison (more actionable errors)

pkg/apply/solver/main_test.go

@@ -0,0 +1,19 @@
+// Copyright 2021 The Kubernetes Authors.
+// SPDX-License-Identifier: Apache-2.0
+
+package solver
+
+import (
+	"os"
+	"testing"
+
+	"k8s.io/klog/v2"
+)
+
+// TestMain executes the tests for this package, with optional logging.
+// To see all logs, use:
+// go test sigs.k8s.io/cli-utils/pkg/apply/solver -v -args -v=5
+func TestMain(m *testing.M) {
+	klog.InitFlags(nil)
+	os.Exit(m.Run())
+}