Move labels to own package

pkg/labels/labelquery_test.go

@@ -0,0 +1,80 @@
+/*
+Copyright 2014 Google Inc. 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 labels
+
+import (
+	"testing"
+)
+
+func TestQueryParse(t *testing.T) {
+	testGoodStrings := []string{
+		"x=a,y=b,z=c",
+		"",
+		"x!=a,y=b",
+	}
+	testBadStrings := []string{
+		"x=a||y=b",
+		"x==a==b",
+	}
+	for _, test := range testGoodStrings {
+		lq, err := ParseQuery(test)
+		if err != nil {
+			t.Errorf("%v: error %v (%#v)\n", test, err, err)
+		}
+		if test != lq.String() {
+			t.Errorf("%v restring gave: %v\n", test, lq.String())
+		}
+	}
+	for _, test := range testBadStrings {
+		_, err := ParseQuery(test)
+		if err == nil {
+			t.Errorf("%v: did not get expected error\n", test)
+		}
+	}
+}
+
+func shouldMatch(t *testing.T, query string, ls LabelSet) {
+	lq, err := ParseQuery(query)
+	if err != nil {
+		t.Errorf("Unable to parse %v as a query\n", query)
+		return
+	}
+	if !lq.Matches(ls) {
+		t.Errorf("Wanted %s to match %s, but it did not.\n", query, ls)
+	}
+}
+
+func shouldNotMatch(t *testing.T, query string, ls LabelSet) {
+	lq, err := ParseQuery(query)
+	if err != nil {
+		t.Errorf("Unable to parse %v as a query\n", query)
+		return
+	}
+	if lq.Matches(ls) {
+		t.Errorf("Wanted '%s' to not match %s, but it did.", query, ls)
+	}
+}
+
+func TestSimpleLabel(t *testing.T) {
+	shouldMatch(t, "", LabelSet{"x": "y"})
+	shouldMatch(t, "x=y", LabelSet{"x": "y"})
+	shouldMatch(t, "x=y,z=w", LabelSet{"x": "y", "z": "w"})
+	shouldMatch(t, "x!=y,z!=w", LabelSet{"x": "z", "z": "a"})
+	shouldNotMatch(t, "x=y", LabelSet{"x": "z"})
+	shouldNotMatch(t, "x=y,z=w", LabelSet{"x": "w", "z": "w"})
+	shouldNotMatch(t, "x!=y,z!=w", LabelSet{"x": "z", "z": "w"})
+}