Log extra environment information (#95)

* Make metrics tests use a host port

* fix port forwarding in devconfig tests

* Log extra environment information at startup

vendor/github.com/syndtr/gocapability/capability/capability_test.go

@@ -0,0 +1,83 @@
+// Copyright (c) 2013, Suryandaru Triandana <syndtr@gmail.com>
+// All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package capability
+
+import "testing"
+
+func TestState(t *testing.T) {
+	testEmpty := func(name string, c Capabilities, whats CapType) {
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			if (i&whats) != 0 && !c.Empty(i) {
+				t.Errorf(name+": capabilities set %q wasn't empty", i)
+			}
+		}
+	}
+	testFull := func(name string, c Capabilities, whats CapType) {
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			if (i&whats) != 0 && !c.Full(i) {
+				t.Errorf(name+": capabilities set %q wasn't full", i)
+			}
+		}
+	}
+	testPartial := func(name string, c Capabilities, whats CapType) {
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			if (i&whats) != 0 && (c.Empty(i) || c.Full(i)) {
+				t.Errorf(name+": capabilities set %q wasn't partial", i)
+			}
+		}
+	}
+	testGet := func(name string, c Capabilities, whats CapType, max Cap) {
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			if (i & whats) == 0 {
+				continue
+			}
+			for j := Cap(0); j <= max; j++ {
+				if !c.Get(i, j) {
+					t.Errorf(name+": capability %q wasn't found on %q", j, i)
+				}
+			}
+		}
+	}
+
+	capf := new(capsFile)
+	capf.data.version = 2
+	for _, tc := range []struct {
+		name string
+		c    Capabilities
+		sets CapType
+		max  Cap
+	}{
+		{"v1", new(capsV1), EFFECTIVE | PERMITTED, CAP_AUDIT_CONTROL},
+		{"v3", new(capsV3), EFFECTIVE | PERMITTED | BOUNDING, CAP_LAST_CAP},
+		{"file_v1", new(capsFile), EFFECTIVE | PERMITTED, CAP_AUDIT_CONTROL},
+		{"file_v2", capf, EFFECTIVE | PERMITTED, CAP_LAST_CAP},
+	} {
+		testEmpty(tc.name, tc.c, tc.sets)
+		tc.c.Fill(CAPS | BOUNDS)
+		testFull(tc.name, tc.c, tc.sets)
+		testGet(tc.name, tc.c, tc.sets, tc.max)
+		tc.c.Clear(CAPS | BOUNDS)
+		testEmpty(tc.name, tc.c, tc.sets)
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			for j := Cap(0); j <= CAP_LAST_CAP; j++ {
+				tc.c.Set(i, j)
+			}
+		}
+		testFull(tc.name, tc.c, tc.sets)
+		testGet(tc.name, tc.c, tc.sets, tc.max)
+		for i := CapType(1); i <= BOUNDING; i <<= 1 {
+			for j := Cap(0); j <= CAP_LAST_CAP; j++ {
+				tc.c.Unset(i, j)
+			}
+		}
+		testEmpty(tc.name, tc.c, tc.sets)
+		tc.c.Set(PERMITTED, CAP_CHOWN)
+		testPartial(tc.name, tc.c, PERMITTED)
+		tc.c.Clear(CAPS | BOUNDS)
+		testEmpty(tc.name, tc.c, tc.sets)
+	}
+}