9969286224
This giant patch makes some much needed improvements to the code base. * The engine has been rewritten and lives within engine/graph/ * All of the common interfaces and code now live in engine/ * All of the resources are in one package called engine/resources/ * The Res API can use different "traits" from engine/traits/ * The Res API has been simplified to hide many of the old internals * The Watch & Process loops were previously inverted, but is now fixed * The likelihood of package cycles has been reduced drastically * And much, much more... Unfortunately, some code had to be temporarily removed. The remote code had to be taken out, as did the prometheus code. We hope to have these back in new forms as soon as possible.
809 lines
17 KiB
Go
809 lines
17 KiB
Go
// Mgmt
|
|
// Copyright (C) 2013-2018+ James Shubin and the project contributors
|
|
// Written by James Shubin <james@shubin.ca> and the project contributors
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program 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 General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package pgraph
|
|
|
|
import (
|
|
"reflect"
|
|
"testing"
|
|
)
|
|
|
|
func TestCount1(t *testing.T) {
|
|
G := &Graph{}
|
|
|
|
if i := G.NumVertices(); i != 0 {
|
|
t.Errorf("should have 0 vertices instead of: %d", i)
|
|
}
|
|
|
|
if i := G.NumEdges(); i != 0 {
|
|
t.Errorf("should have 0 edges instead of: %d", i)
|
|
}
|
|
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
e1 := NE("e1")
|
|
G.AddEdge(v1, v2, e1)
|
|
|
|
if i := G.NumVertices(); i != 2 {
|
|
t.Errorf("should have 2 vertices instead of: %d", i)
|
|
}
|
|
|
|
if i := G.NumEdges(); i != 1 {
|
|
t.Errorf("should have 1 edges instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestAddVertex1(t *testing.T) {
|
|
G := &Graph{Name: "g2"}
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
//e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
|
|
if i := G.NumVertices(); i != 6 {
|
|
t.Errorf("should have 6 vertices instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestDFS1(t *testing.T) {
|
|
G, _ := NewGraph("g3")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
//e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
//G.AddEdge(v6, v4, e6)
|
|
out1 := G.DFS(v1)
|
|
if i := len(out1); i != 3 {
|
|
t.Errorf("should have 3 vertices instead of: %d", i)
|
|
t.Errorf("found: %v", out1)
|
|
for _, v := range out1 {
|
|
t.Errorf("value: %s", v)
|
|
}
|
|
}
|
|
|
|
out2 := G.DFS(v4)
|
|
if i := len(out2); i != 3 {
|
|
t.Errorf("should have 3 vertices instead of: %d", i)
|
|
t.Errorf("found: %v", out1)
|
|
for _, v := range out1 {
|
|
t.Errorf("value: %s", v)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDFS2(t *testing.T) {
|
|
G, _ := NewGraph("g4")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
out := G.DFS(v1)
|
|
if i := len(out); i != 3 {
|
|
t.Errorf("should have 3 vertices instead of: %d", i)
|
|
t.Errorf("found: %v", out)
|
|
for _, v := range out {
|
|
t.Errorf("value: %s", v)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFilterGraph1(t *testing.T) {
|
|
G, _ := NewGraph("g5")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
//e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
//G.AddEdge(v6, v4, e6)
|
|
|
|
save := []Vertex{v1, v2, v3}
|
|
out, err := G.FilterGraph("new g5", save)
|
|
if err != nil {
|
|
t.Errorf("failed with: %v", err)
|
|
}
|
|
|
|
if i := out.NumVertices(); i != 3 {
|
|
t.Errorf("should have 3 vertices instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestDisconnectedGraphs1(t *testing.T) {
|
|
G, _ := NewGraph("g6")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
//e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
//G.AddEdge(v6, v4, e6)
|
|
|
|
graphs, err := G.DisconnectedGraphs()
|
|
if err != nil {
|
|
t.Errorf("failed with: %v", err)
|
|
}
|
|
|
|
if i := len(graphs); i != 2 {
|
|
t.Errorf("should have 2 graphs instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestDeleteVertex1(t *testing.T) {
|
|
G, _ := NewGraph("g7")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v1, e3)
|
|
|
|
if i := G.NumVertices(); i != 3 {
|
|
t.Errorf("should have 3 vertices instead of: %d", i)
|
|
}
|
|
|
|
G.DeleteVertex(v2)
|
|
|
|
if i := G.NumVertices(); i != 2 {
|
|
t.Errorf("should have 2 vertices instead of: %d", i)
|
|
}
|
|
|
|
G.DeleteVertex(v1)
|
|
|
|
if i := G.NumVertices(); i != 1 {
|
|
t.Errorf("should have 1 vertices instead of: %d", i)
|
|
}
|
|
|
|
G.DeleteVertex(v3)
|
|
|
|
if i := G.NumVertices(); i != 0 {
|
|
t.Errorf("should have 0 vertices instead of: %d", i)
|
|
}
|
|
|
|
G.DeleteVertex(v2) // duplicate deletes don't error...
|
|
|
|
if i := G.NumVertices(); i != 0 {
|
|
t.Errorf("should have 0 vertices instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestDeleteVertex2(t *testing.T) {
|
|
G := &Graph{}
|
|
v1 := NV("v1")
|
|
G.DeleteVertex(v1) // check this doesn't panic
|
|
|
|
if i := G.NumVertices(); i != 0 {
|
|
t.Errorf("should have 0 vertices instead of: %d", i)
|
|
}
|
|
}
|
|
|
|
func TestVertexContains1(t *testing.T) {
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
if VertexContains(v1, []Vertex{v1, v2, v3}) != true {
|
|
t.Errorf("should be true instead of false.")
|
|
}
|
|
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
if VertexContains(v4, []Vertex{v5, v6}) != false {
|
|
t.Errorf("should be false instead of true.")
|
|
}
|
|
|
|
v7 := NV("v7")
|
|
v8 := NV("v8")
|
|
v9 := NV("v9")
|
|
if VertexContains(v8, []Vertex{v7, v8, v9}) != true {
|
|
t.Errorf("should be true instead of false.")
|
|
}
|
|
|
|
v1b := NV("v1") // same value, different objects
|
|
if VertexContains(v1b, []Vertex{v1, v2, v3}) != false {
|
|
t.Errorf("should be false instead of true.")
|
|
}
|
|
}
|
|
|
|
func TestTopoSort1(t *testing.T) {
|
|
G, _ := NewGraph("g9")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v1, v3, e2)
|
|
G.AddEdge(v2, v4, e3)
|
|
G.AddEdge(v3, v4, e4)
|
|
|
|
G.AddEdge(v4, v5, e5)
|
|
G.AddEdge(v5, v6, e6)
|
|
|
|
indegree := G.InDegree() // map[Vertex]int
|
|
if i := indegree[v1]; i != 0 {
|
|
t.Errorf("indegree of v1 should be 0 instead of: %d", i)
|
|
}
|
|
if i := indegree[v2]; i != 1 {
|
|
t.Errorf("indegree of v2 should be 1 instead of: %d", i)
|
|
}
|
|
if i := indegree[v3]; i != 1 {
|
|
t.Errorf("indegree of v3 should be 1 instead of: %d", i)
|
|
}
|
|
if i := indegree[v4]; i != 2 {
|
|
t.Errorf("indegree of v4 should be 2 instead of: %d", i)
|
|
}
|
|
if i := indegree[v5]; i != 1 {
|
|
t.Errorf("indegree of v5 should be 1 instead of: %d", i)
|
|
}
|
|
if i := indegree[v6]; i != 1 {
|
|
t.Errorf("indegree of v6 should be 1 instead of: %d", i)
|
|
}
|
|
|
|
outdegree := G.OutDegree() // map[Vertex]int
|
|
if i := outdegree[v1]; i != 2 {
|
|
t.Errorf("outdegree of v1 should be 2 instead of: %d", i)
|
|
}
|
|
if i := outdegree[v2]; i != 1 {
|
|
t.Errorf("outdegree of v2 should be 1 instead of: %d", i)
|
|
}
|
|
if i := outdegree[v3]; i != 1 {
|
|
t.Errorf("outdegree of v3 should be 1 instead of: %d", i)
|
|
}
|
|
if i := outdegree[v4]; i != 1 {
|
|
t.Errorf("outdegree of v4 should be 1 instead of: %d", i)
|
|
}
|
|
if i := outdegree[v5]; i != 1 {
|
|
t.Errorf("outdegree of v5 should be 1 instead of: %d", i)
|
|
}
|
|
if i := outdegree[v6]; i != 0 {
|
|
t.Errorf("outdegree of v6 should be 0 instead of: %d", i)
|
|
}
|
|
|
|
s, err := G.TopologicalSort()
|
|
// either possibility is a valid toposort
|
|
match := reflect.DeepEqual(s, []Vertex{v1, v2, v3, v4, v5, v6}) || reflect.DeepEqual(s, []Vertex{v1, v3, v2, v4, v5, v6})
|
|
if err != nil || !match {
|
|
t.Errorf("topological sort failed, error: %v", err)
|
|
str := "Found:"
|
|
for _, v := range s {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
func TestTopoSort2(t *testing.T) {
|
|
G, _ := NewGraph("g10")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v4, e3)
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
G.AddEdge(v4, v2, e6) // cycle
|
|
|
|
if _, err := G.TopologicalSort(); err == nil {
|
|
t.Errorf("topological sort passed, but graph is cyclic")
|
|
}
|
|
}
|
|
|
|
// empty
|
|
func TestReachability0(t *testing.T) {
|
|
{
|
|
G, _ := NewGraph("g")
|
|
result, err := G.Reachability(nil, nil)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
if result != nil {
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
}
|
|
{
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v6 := NV("v6")
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected := []Vertex{}
|
|
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
{
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v1, v4, e3)
|
|
G.AddEdge(v3, v4, e4)
|
|
G.AddEdge(v3, v5, e5)
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected := []Vertex{}
|
|
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
}
|
|
|
|
// simple linear path
|
|
func TestReachability1(t *testing.T) {
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
//e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v4, e3)
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected := []Vertex{v1, v2, v3, v4, v5, v6}
|
|
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
// pick one of two correct paths
|
|
func TestReachability2(t *testing.T) {
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v1, v3, e2)
|
|
G.AddEdge(v2, v4, e3)
|
|
G.AddEdge(v3, v4, e4)
|
|
G.AddEdge(v4, v5, e5)
|
|
G.AddEdge(v5, v6, e6)
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected1 := []Vertex{v1, v2, v4, v5, v6}
|
|
expected2 := []Vertex{v1, v3, v4, v5, v6}
|
|
|
|
// !xor test
|
|
if reflect.DeepEqual(result, expected1) == reflect.DeepEqual(result, expected2) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
// pick shortest path
|
|
func TestReachability3(t *testing.T) {
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v4, e3)
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v1, v5, e5)
|
|
G.AddEdge(v5, v6, e6)
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected := []Vertex{v1, v5, v6}
|
|
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
// direct path
|
|
func TestReachability4(t *testing.T) {
|
|
G, _ := NewGraph("g")
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
G.AddEdge(v1, v2, e1)
|
|
G.AddEdge(v2, v3, e2)
|
|
G.AddEdge(v3, v4, e3)
|
|
G.AddEdge(v4, v5, e4)
|
|
G.AddEdge(v5, v6, e5)
|
|
G.AddEdge(v1, v6, e6)
|
|
|
|
result, err := G.Reachability(v1, v6)
|
|
if err != nil {
|
|
t.Logf("reachability failed: %+v", err)
|
|
return
|
|
}
|
|
expected := []Vertex{v1, v6}
|
|
|
|
if !reflect.DeepEqual(result, expected) {
|
|
t.Logf("reachability failed")
|
|
str := "Got:"
|
|
for _, v := range result {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
func TestReverse1(t *testing.T) {
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
|
|
if rev := Reverse([]Vertex{}); !reflect.DeepEqual(rev, []Vertex{}) {
|
|
t.Errorf("reverse of vertex slice failed (empty)")
|
|
}
|
|
|
|
if rev := Reverse([]Vertex{v1}); !reflect.DeepEqual(rev, []Vertex{v1}) {
|
|
t.Errorf("reverse of vertex slice failed (single)")
|
|
}
|
|
|
|
if rev := Reverse([]Vertex{v1, v2, v3, v4, v5, v6}); !reflect.DeepEqual(rev, []Vertex{v6, v5, v4, v3, v2, v1}) {
|
|
t.Errorf("reverse of vertex slice failed (1..6)")
|
|
}
|
|
|
|
if rev := Reverse([]Vertex{v6, v5, v4, v3, v2, v1}); !reflect.DeepEqual(rev, []Vertex{v1, v2, v3, v4, v5, v6}) {
|
|
t.Errorf("reverse of vertex slice failed (6..1)")
|
|
}
|
|
}
|
|
|
|
func TestCopy1(t *testing.T) {
|
|
g1 := &Graph{}
|
|
g2 := g1.Copy() // check this doesn't panic
|
|
if !reflect.DeepEqual(g1.String(), g2.String()) {
|
|
t.Errorf("graph copy failed")
|
|
}
|
|
}
|
|
|
|
func TestGraphCmp1(t *testing.T) {
|
|
g1 := &Graph{}
|
|
g2 := &Graph{}
|
|
g3 := &Graph{}
|
|
g3.AddVertex(NV("v1"))
|
|
g4 := &Graph{}
|
|
g4.AddVertex(NV("v2"))
|
|
|
|
if err := g1.GraphCmp(g2, strVertexCmpFn, strEdgeCmpFn); err != nil {
|
|
t.Errorf("should have no error during GraphCmp, but got: %v", err)
|
|
}
|
|
|
|
if err := g1.GraphCmp(g3, strVertexCmpFn, strEdgeCmpFn); err == nil {
|
|
t.Errorf("should have error during GraphCmp, but got nil")
|
|
}
|
|
|
|
if err := g3.GraphCmp(g4, strVertexCmpFn, strEdgeCmpFn); err == nil {
|
|
t.Errorf("should have error during GraphCmp, but got nil")
|
|
}
|
|
}
|
|
|
|
// FIXME: i think we should allow equivalent elements in the graph to compare...
|
|
// FIXME: currently this fails :(
|
|
//func TestGraphCmp2(t *testing.T) {
|
|
// g1 := &Graph{}
|
|
// g2 := &Graph{}
|
|
// g1.AddVertex(NV("v1"), NV("v1"))
|
|
// g2.AddVertex(NV("v1"), NV("v1"))
|
|
//
|
|
// if err := g1.GraphCmp(g2, strVertexCmpFn, strEdgeCmpFn); err != nil {
|
|
// t.Errorf("should have no error during GraphCmp, but got: %v", err)
|
|
// }
|
|
//}
|
|
|
|
func TestSort0(t *testing.T) {
|
|
vs := []Vertex{}
|
|
s := Sort(vs)
|
|
|
|
if !reflect.DeepEqual(s, []Vertex{}) {
|
|
t.Errorf("sort failed!")
|
|
if s == nil {
|
|
t.Logf("output is nil!")
|
|
} else {
|
|
str := "Got:"
|
|
for _, v := range s {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestSort1(t *testing.T) {
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
v5 := NV("v5")
|
|
v6 := NV("v6")
|
|
|
|
vs := []Vertex{v3, v2, v6, v1, v5, v4}
|
|
s := Sort(vs)
|
|
|
|
if !reflect.DeepEqual(s, []Vertex{v1, v2, v3, v4, v5, v6}) {
|
|
t.Errorf("sort failed!")
|
|
str := "Got:"
|
|
for _, v := range s {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
|
|
if !reflect.DeepEqual(vs, []Vertex{v3, v2, v6, v1, v5, v4}) {
|
|
t.Errorf("sort modified input!")
|
|
str := "Got:"
|
|
for _, v := range vs {
|
|
str += " " + v.String()
|
|
}
|
|
t.Errorf(str)
|
|
}
|
|
}
|
|
|
|
func TestDeleteEdge1(t *testing.T) {
|
|
g, _ := NewGraph("g")
|
|
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
|
|
g.AddEdge(v1, v2, e1)
|
|
g.AddEdge(v2, v3, e2)
|
|
g.AddEdge(v1, v3, e3)
|
|
g.AddEdge(v2, v1, e4)
|
|
g.AddEdge(v3, v2, e5)
|
|
g.AddEdge(v3, v1, e6)
|
|
|
|
g.DeleteEdge(e1)
|
|
g.DeleteEdge(e2)
|
|
g.DeleteEdge(e3)
|
|
g.DeleteEdge(e3)
|
|
|
|
if g.NumEdges() != 3 {
|
|
t.Errorf("expected number of edges: 3, instead of: %d", g.NumEdges())
|
|
}
|
|
}
|
|
|
|
func TestDeleteEdge2(t *testing.T) {
|
|
g, _ := NewGraph("g")
|
|
|
|
v1 := NV("v1")
|
|
v2 := NV("v2")
|
|
v3 := NV("v3")
|
|
v4 := NV("v4")
|
|
|
|
e1 := NE("e1")
|
|
e2 := NE("e2")
|
|
e3 := NE("e3")
|
|
e4 := NE("e4")
|
|
e5 := NE("e5")
|
|
e6 := NE("e6")
|
|
e7 := NE("e7")
|
|
|
|
g.AddEdge(v1, v2, e1)
|
|
g.AddEdge(v1, v2, e2)
|
|
g.AddEdge(v1, v3, e3)
|
|
g.AddEdge(v1, v4, e4)
|
|
g.AddEdge(v2, v1, e5)
|
|
g.AddEdge(v3, v1, e6)
|
|
g.AddEdge(v4, v1, e7)
|
|
|
|
g.DeleteEdge(e1)
|
|
g.DeleteEdge(e2)
|
|
g.DeleteEdge(e3)
|
|
g.DeleteEdge(e5)
|
|
g.DeleteEdge(e6)
|
|
|
|
ie := g.IncomingGraphEdges(v1)
|
|
oe := g.OutgoingGraphEdges(v1)
|
|
|
|
if !reflect.DeepEqual(ie, []Edge{e7}) {
|
|
res := ""
|
|
for _, e := range ie {
|
|
res += e.String() + " "
|
|
}
|
|
t.Errorf("expected incoming graph edges for vertex v1: e7, instead of: %s", res)
|
|
}
|
|
|
|
if !reflect.DeepEqual(oe, []Edge{e4}) {
|
|
res := ""
|
|
for _, e := range oe {
|
|
res += e.String() + " "
|
|
}
|
|
t.Errorf("expected outgoing graph edges for vertex v1: e4, instead of: %s", res)
|
|
}
|
|
}
|