implement inter pod topological affinity and anti-affinity

pkg/api/unversioned/validation/validation_test.go

@@ -0,0 +1,85 @@
+/*
+Copyright 2016 The Kubernetes Authors All rights reserved.
+
+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.
+*/
+
+package validation
+
+import (
+	"strings"
+	"testing"
+
+	"k8s.io/kubernetes/pkg/util/validation/field"
+)
+
+func TestValidateLabels(t *testing.T) {
+	successCases := []map[string]string{
+		{"simple": "bar"},
+		{"now-with-dashes": "bar"},
+		{"1-starts-with-num": "bar"},
+		{"1234": "bar"},
+		{"simple/simple": "bar"},
+		{"now-with-dashes/simple": "bar"},
+		{"now-with-dashes/now-with-dashes": "bar"},
+		{"now.with.dots/simple": "bar"},
+		{"now-with.dashes-and.dots/simple": "bar"},
+		{"1-num.2-num/3-num": "bar"},
+		{"1234/5678": "bar"},
+		{"1.2.3.4/5678": "bar"},
+		{"UpperCaseAreOK123": "bar"},
+		{"goodvalue": "123_-.BaR"},
+	}
+	for i := range successCases {
+		errs := ValidateLabels(successCases[i], field.NewPath("field"))
+		if len(errs) != 0 {
+			t.Errorf("case[%d] expected success, got %#v", i, errs)
+		}
+	}
+
+	labelNameErrorCases := []map[string]string{
+		{"nospecialchars^=@": "bar"},
+		{"cantendwithadash-": "bar"},
+		{"only/one/slash": "bar"},
+		{strings.Repeat("a", 254): "bar"},
+	}
+	for i := range labelNameErrorCases {
+		errs := ValidateLabels(labelNameErrorCases[i], field.NewPath("field"))
+		if len(errs) != 1 {
+			t.Errorf("case[%d] expected failure", i)
+		} else {
+			detail := errs[0].Detail
+			if detail != qualifiedNameErrorMsg {
+				t.Errorf("error detail %s should be equal %s", detail, qualifiedNameErrorMsg)
+			}
+		}
+	}
+
+	labelValueErrorCases := []map[string]string{
+		{"toolongvalue": strings.Repeat("a", 64)},
+		{"backslashesinvalue": "some\\bad\\value"},
+		{"nocommasallowed": "bad,value"},
+		{"strangecharsinvalue": "?#$notsogood"},
+	}
+	for i := range labelValueErrorCases {
+		errs := ValidateLabels(labelValueErrorCases[i], field.NewPath("field"))
+		if len(errs) != 1 {
+			t.Errorf("case[%d] expected failure", i)
+		} else {
+			detail := errs[0].Detail
+			if detail != labelValueErrorMsg {
+				t.Errorf("error detail %s should be equal %s", detail, labelValueErrorMsg)
+			}
+		}
+	}
+}