1 files changed, 215 insertions, 0 deletions
diff --git a/whisper/whisperv2/filter_test.go b/whisper/whisperv2/filter_test.go
new file mode 100644
index 000000000..5a14a84bb
--- /dev/null
+++ b/whisper/whisperv2/filter_test.go
@@ -0,0 +1,215 @@
+// Copyright 2015 The go-ethereum Authors
+// This file is part of the go-ethereum library.
+//
+// The go-ethereum library is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// The go-ethereum library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
+
+package whisperv2
+
+import (
+	"bytes"
+
+	"testing"
+)
+
+var filterTopicsCreationTests = []struct {
+	topics [][]string
+	filter [][][4]byte
+}{
+	{ // Simple topic filter
+		topics: [][]string{
+			{"abc", "def", "ghi"},
+			{"def"},
+			{"ghi", "abc"},
+		},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}, {0x34, 0x60, 0x7c, 0x9b}, {0x21, 0x41, 0x7d, 0xf9}},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+			{{0x21, 0x41, 0x7d, 0xf9}, {0x4e, 0x03, 0x65, 0x7a}},
+		},
+	},
+	{ // Wild-carded topic filter
+		topics: [][]string{
+			{"abc", "def", "ghi"},
+			{},
+			{""},
+			{"def"},
+		},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}, {0x34, 0x60, 0x7c, 0x9b}, {0x21, 0x41, 0x7d, 0xf9}},
+			{},
+			{},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+		},
+	},
+}
+
+var filterTopicsCreationFlatTests = []struct {
+	topics []string
+	filter [][][4]byte
+}{
+	{ // Simple topic list
+		topics: []string{"abc", "def", "ghi"},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}},
+			{{0x34, 0x60, 0x7c, 0x9b}},
+			{{0x21, 0x41, 0x7d, 0xf9}},
+		},
+	},
+	{ // Wild-carded topic list
+		topics: []string{"abc", "", "ghi"},
+		filter: [][][4]byte{
+			{{0x4e, 0x03, 0x65, 0x7a}},
+			{},
+			{{0x21, 0x41, 0x7d, 0xf9}},
+		},
+	},
+}
+
+func TestFilterTopicsCreation(t *testing.T) {
+	// Check full filter creation
+	for i, tt := range filterTopicsCreationTests {
+		// Check the textual creation
+		filter := NewFilterTopicsFromStrings(tt.topics...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+		// Check the binary creation
+		binary := make([][][]byte, len(tt.topics))
+		for j, condition := range tt.topics {
+			binary[j] = make([][]byte, len(condition))
+			for k, segment := range condition {
+				binary[j][k] = []byte(segment)
+			}
+		}
+		filter = NewFilterTopics(binary...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+	}
+	// Check flat filter creation
+	for i, tt := range filterTopicsCreationFlatTests {
+		// Check the textual creation
+		filter := NewFilterTopicsFromStringsFlat(tt.topics...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+		// Check the binary creation
+		binary := make([][]byte, len(tt.topics))
+		for j, topic := range tt.topics {
+			binary[j] = []byte(topic)
+		}
+		filter = NewFilterTopicsFlat(binary...)
+		if len(filter) != len(tt.topics) {
+			t.Errorf("test %d: condition count mismatch: have %v, want %v", i, len(filter), len(tt.topics))
+			continue
+		}
+		for j, condition := range filter {
+			if len(condition) != len(tt.filter[j]) {
+				t.Errorf("test %d, condition %d: size mismatch: have %v, want %v", i, j, len(condition), len(tt.filter[j]))
+				continue
+			}
+			for k := 0; k < len(condition); k++ {
+				if bytes.Compare(condition[k][:], tt.filter[j][k][:]) != 0 {
+					t.Errorf("test %d, condition %d, segment %d: filter mismatch: have 0x%x, want 0x%x", i, j, k, condition[k], tt.filter[j][k])
+				}
+			}
+		}
+	}
+}
+
+var filterCompareTests = []struct {
+	matcher filterer
+	message filterer
+	match   bool
+}{
+	{ // Wild-card filter matching anything
+		matcher: filterer{to: "", from: "", matcher: newTopicMatcher()},
+		message: filterer{to: "to", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   true,
+	},
+	{ // Filter matching the to field
+		matcher: filterer{to: "to", from: "", matcher: newTopicMatcher()},
+		message: filterer{to: "to", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   true,
+	},
+	{ // Filter rejecting the to field
+		matcher: filterer{to: "to", from: "", matcher: newTopicMatcher()},
+		message: filterer{to: "", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   false,
+	},
+	{ // Filter matching the from field
+		matcher: filterer{to: "", from: "from", matcher: newTopicMatcher()},
+		message: filterer{to: "to", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   true,
+	},
+	{ // Filter rejecting the from field
+		matcher: filterer{to: "", from: "from", matcher: newTopicMatcher()},
+		message: filterer{to: "to", from: "", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   false,
+	},
+	{ // Filter matching the topic field
+		matcher: filterer{to: "", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		message: filterer{to: "to", from: "from", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		match:   true,
+	},
+	{ // Filter rejecting the topic field
+		matcher: filterer{to: "", from: "", matcher: newTopicMatcher(NewFilterTopicsFromStringsFlat("topic")...)},
+		message: filterer{to: "to", from: "from", matcher: newTopicMatcher()},
+		match:   false,
+	},
+}
+
+func TestFilterCompare(t *testing.T) {
+	for i, tt := range filterCompareTests {
+		if match := tt.matcher.Compare(tt.message); match != tt.match {
+			t.Errorf("test %d: match mismatch: have %v, want %v", i, match, tt.match)
+		}
+	}
+}