lifted ut from the k8s codebase for resourcequota

Signed-off-by: changzhen <changzhen5@huawei.com>

pkg/util/lifted/resourcehelpers_test.go

@@ -0,0 +1,85 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// This code is directly lifted from the Kubernetes codebase in order to avoid relying on the k8s.io/kubernetes package.
+// For reference:
+// https://github.com/kubernetes/kubernetes/blob/release-1.23/pkg/apis/core/helper/helpers_test.go
+
+package lifted
+
+import (
+	"fmt"
+	v1 "k8s.io/api/core/v1"
+	"testing"
+)
+
+func TestIsNativeResource(t *testing.T) {
+	testCases := []struct {
+		resourceName v1.ResourceName
+		expectVal    bool
+	}{
+		{
+			resourceName: "pod.alpha.kubernetes.io/opaque-int-resource-foo",
+			expectVal:    true,
+		},
+		{
+			resourceName: "kubernetes.io/resource-foo",
+			expectVal:    true,
+		},
+		{
+			resourceName: "foo",
+			expectVal:    true,
+		},
+		{
+			resourceName: "a/b",
+			expectVal:    false,
+		},
+		{
+			resourceName: "",
+			expectVal:    true,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(fmt.Sprintf("resourceName input=%s, expected value=%v", tc.resourceName, tc.expectVal), func(t *testing.T) {
+			t.Parallel()
+			v := IsNativeResource(tc.resourceName)
+			if v != tc.expectVal {
+				t.Errorf("Got %v but expected %v", v, tc.expectVal)
+			}
+		})
+	}
+}
+
+func TestIsStandardResource(t *testing.T) {
+	testCases := []struct {
+		input  string
+		output bool
+	}{
+		{"cpu", true},
+		{"memory", true},
+		{"disk", false},
+		{"blah", false},
+		{"x.y.z", false},
+		{"hugepages-2Mi", true},
+		{"requests.hugepages-2Mi", true},
+	}
+	for i, tc := range testCases {
+		if IsStandardResourceName(tc.input) != tc.output {
+			t.Errorf("case[%d], input: %s, expected: %t, got: %t", i, tc.input, tc.output, !tc.output)
+		}
+	}
+}

pkg/util/lifted/validateresourcequota_test.go

@@ -0,0 +1,73 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// This code is directly lifted from the Kubernetes codebase in order to avoid relying on the k8s.io/kubernetes package.
+// For reference:
+// https://github.com/kubernetes/kubernetes/blob/release-1.23/pkg/apis/core/validation/validation_test.go#L15475-L15518
+
+package lifted
+
+import (
+	"strings"
+	"testing"
+
+	"k8s.io/apimachinery/pkg/util/validation/field"
+)
+
+func TestValidateResourceNames(t *testing.T) {
+	table := []struct {
+		input   string
+		success bool
+		expect  string
+	}{
+		{"memory", true, ""},
+		{"cpu", true, ""},
+		{"storage", true, ""},
+		{"requests.cpu", true, ""},
+		{"requests.memory", true, ""},
+		{"requests.storage", true, ""},
+		{"limits.cpu", true, ""},
+		{"limits.memory", true, ""},
+		{"network", false, ""},
+		{"disk", false, ""},
+		{"", false, ""},
+		{".", false, ""},
+		{"..", false, ""},
+		{"my.favorite.app.co/12345", true, ""},
+		{"my.favorite.app.co/_12345", false, ""},
+		{"my.favorite.app.co/12345_", false, ""},
+		{"kubernetes.io/..", false, ""},
+		{"kubernetes.io/" + strings.Repeat("a", 63), true, ""},
+		{"kubernetes.io/" + strings.Repeat("a", 64), false, ""},
+		{"kubernetes.io//", false, ""},
+		{"kubernetes.io", false, ""},
+		{"kubernetes.io/will/not/work/", false, ""},
+	}
+	for k, item := range table {
+		err := validateResourceName(item.input, field.NewPath("field"))
+		if len(err) != 0 && item.success {
+			t.Errorf("expected no failure for input %q", item.input)
+		} else if len(err) == 0 && !item.success {
+			t.Errorf("expected failure for input %q", item.input)
+			for i := range err {
+				detail := err[i].Detail
+				if detail != "" && !strings.Contains(detail, item.expect) {
+					t.Errorf("%d: expected error detail either empty or %s, got %s", k, item.expect, detail)
+				}
+			}
+		}
+	}
+}