685 lines
17 KiB
Go
685 lines
17 KiB
Go
package common
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import (
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"testing"
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"bytes"
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"os"
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"path/filepath"
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)
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func consumeString(s string) (out chan byte) {
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out = make(chan byte)
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go func() {
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for _, ch := range s {
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out <- byte(ch)
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}
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close(out)
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}()
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return
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}
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func uncommentFromString(s string) string {
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inCh := consumeString(s)
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out := uncomment(inCh)
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result := ""
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for reading := true; reading; {
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if item, ok := <-out; !ok {
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break
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} else {
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result += string(item)
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}
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}
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return result
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}
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func TestParserUncomment(t *testing.T) {
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var result string
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test_0 := "this is a straight-up line"
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result_0 := test_0
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result = uncommentFromString(test_0)
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if result != result_0 {
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t.Errorf("Expected %#v, received %#v", result_0, result)
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}
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test_1 := "this is a straight-up line with a newline\n"
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result_1 := test_1
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result = uncommentFromString(test_1)
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if result != result_1 {
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t.Errorf("Expected %#v, received %#v", result_1, result)
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}
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test_2 := "this line has a comment # at its end"
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result_2 := "this line has a comment "
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result = uncommentFromString(test_2)
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if result != result_2 {
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t.Errorf("Expected %#v, received %#v", result_2, result)
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}
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test_3 := "# this whole line is commented"
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result_3 := ""
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result = uncommentFromString(test_3)
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if result != result_3 {
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t.Errorf("Expected %#v, received %#v", result_3, result)
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}
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test_4 := "this\nhas\nmultiple\nlines"
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result_4 := test_4
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result = uncommentFromString(test_4)
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if result != result_4 {
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t.Errorf("Expected %#v, received %#v", result_4, result)
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}
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test_5 := "this only has\n# one line"
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result_5 := "this only has\n"
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result = uncommentFromString(test_5)
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if result != result_5 {
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t.Errorf("Expected %#v, received %#v", result_5, result)
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}
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test_6 := "this is\npartially # commented"
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result_6 := "this is\npartially "
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result = uncommentFromString(test_6)
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if result != result_6 {
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t.Errorf("Expected %#v, received %#v", result_6, result)
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}
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test_7 := "this # has\nmultiple # lines\ncommented # out"
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result_7 := "this \nmultiple \ncommented "
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result = uncommentFromString(test_7)
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if result != result_7 {
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t.Errorf("Expected %#v, received %#v", result_7, result)
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}
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}
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func tokenizeDhcpConfigFromString(s string) []string {
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inCh := consumeString(s)
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out := tokenizeDhcpConfig(inCh)
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result := make([]string, 0)
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for {
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if item, ok := <-out; !ok {
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break
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} else {
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result = append(result, item)
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}
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}
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return result
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}
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func TestParserTokenizeDhcp(t *testing.T) {
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test_1 := `
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subnet 127.0.0.0 netmask 255.255.255.252 {
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item 1234 5678;
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tabbed item-1 1234;
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quoted item-2 "hola mundo.";
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}
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`
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expected := []string{
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"subnet", "127.0.0.0", "netmask", "255.255.255.252", "{",
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"item", "1234", "5678", ";",
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"tabbed", "item-1", "1234", ";",
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"quoted", "item-2", "\"hola mundo.\"", ";",
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"}",
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}
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result := tokenizeDhcpConfigFromString(test_1)
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t.Logf("testing for: %v", expected)
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t.Logf("checking out: %v", result)
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if len(result) != len(expected) {
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t.Fatalf("length of token lists do not match (%d != %d)", len(result), len(expected))
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}
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for index := range expected {
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if expected[index] != result[index] {
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t.Errorf("unexpected token at index %d: %v != %v", index, expected[index], result[index])
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}
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}
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}
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func consumeTokens(tokes []string) chan string {
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out := make(chan string)
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go func() {
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for _, item := range tokes {
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out <- item
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}
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out <- ";"
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close(out)
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}()
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return out
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}
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func TestParserDhcpParameters(t *testing.T) {
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var ch chan string
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test_1 := []string{"option", "whee", "whooo"}
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ch = consumeTokens(test_1)
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result := parseTokenParameter(ch)
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if result.name != "option" {
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t.Errorf("expected name %s, got %s", test_1[0], result.name)
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}
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if len(result.operand) == 2 {
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if result.operand[0] != "whee" {
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t.Errorf("expected operand[%d] as %s, got %s", 0, "whee", result.operand[0])
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}
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if result.operand[1] != "whooo" {
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t.Errorf("expected operand[%d] as %s, got %s", 0, "whooo", result.operand[1])
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}
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} else {
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t.Errorf("expected %d operands, got %d", 2, len(result.operand))
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}
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test_2 := []string{"whaaa", "whoaaa", ";", "wooops"}
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ch = consumeTokens(test_2)
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result = parseTokenParameter(ch)
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if result.name != "whaaa" {
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t.Errorf("expected name %s, got %s", test_2[0], result.name)
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}
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if len(result.operand) == 1 {
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if result.operand[0] != "whoaaa" {
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t.Errorf("expected operand[%d] as %s, got %s", 0, "whoaaa", result.operand[0])
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}
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} else {
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t.Errorf("expected %d operands, got %d", 1, len(result.operand))
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}
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test_3 := []string{"optionz", "only", "{", "culled"}
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ch = consumeTokens(test_3)
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result = parseTokenParameter(ch)
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if result.name != "optionz" {
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t.Errorf("expected name %s, got %s", test_3[0], result.name)
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}
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if len(result.operand) == 1 {
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if result.operand[0] != "only" {
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t.Errorf("expected operand[%d] as %s, got %s", 0, "only", result.operand[0])
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}
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} else {
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t.Errorf("expected %d operands, got %d", 1, len(result.operand))
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}
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}
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func consumeDhcpConfig(items []string) (tkGroup, error) {
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out := make(chan string)
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tch := consumeTokens(items)
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go func() {
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for item := range tch {
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out <- item
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}
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close(out)
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}()
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return parseDhcpConfig(out)
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}
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func compareSlice(a, b []string) bool {
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if len(a) != len(b) {
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return false
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}
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for i := range a {
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if a[i] != b[i] {
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return false
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}
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}
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return true
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}
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func TestParserDhcpConfigParse(t *testing.T) {
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test_1 := []string{
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"allow", "unused-option", ";",
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"lease-option", "1234", ";",
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"more", "options", "hi", ";",
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}
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result_1, err := consumeDhcpConfig(test_1)
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if err != nil {
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t.Fatalf("%s", err)
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}
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if len(result_1.params) != 4 {
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t.Fatalf("expected %d params, got %d", 3, len(result_1.params))
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}
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if result_1.params[0].name != "allow" {
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t.Errorf("expected %s, got %s", "allow", result_1.params[0].name)
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}
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if !compareSlice(result_1.params[0].operand, []string{"unused-option"}) {
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t.Errorf("unexpected options parsed: %v", result_1.params[0].operand)
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}
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if result_1.params[1].name != "lease-option" {
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t.Errorf("expected %s, got %s", "lease-option", result_1.params[1].name)
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}
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if !compareSlice(result_1.params[1].operand, []string{"1234"}) {
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t.Errorf("unexpected options parsed: %v", result_1.params[1].operand)
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}
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if result_1.params[2].name != "more" {
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t.Errorf("expected %s, got %s", "lease-option", result_1.params[2].name)
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}
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if !compareSlice(result_1.params[2].operand, []string{"options", "hi"}) {
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t.Errorf("unexpected options parsed: %v", result_1.params[2].operand)
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}
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test_2 := []string{
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"first-option", ";",
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"child", "group", "{",
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"blah", ";",
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"meh", ";",
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"}",
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"hidden", "option", "57005", ";",
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"host", "device", "two", "{",
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"skipped", "option", ";",
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"more", "skipped", "options", ";",
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"}",
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"last", "option", "but", "unterminated",
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}
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result_2, err := consumeDhcpConfig(test_2)
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if err != nil {
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t.Fatalf("%s", err)
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}
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if len(result_2.groups) != 2 {
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t.Fatalf("expected %d groups, got %d", 2, len(result_2.groups))
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}
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if len(result_2.params) != 3 {
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t.Errorf("expected %d options, got %d", 3, len(result_2.params))
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}
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group0 := result_2.groups[0]
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if group0.id.name != "child" {
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t.Errorf("expected group %s, got %s", "child", group0.id.name)
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}
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if len(group0.id.operand) != 1 {
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t.Errorf("expected group operand %d, got %d", 1, len(group0.params))
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}
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if len(group0.params) != 2 {
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t.Errorf("expected group params %d, got %d", 2, len(group0.params))
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}
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group1 := result_2.groups[1]
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if group1.id.name != "host" {
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t.Errorf("expected group %s, got %s", "host", group1.id.name)
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}
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if len(group1.id.operand) != 2 {
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t.Errorf("expected group operand %d, got %d", 2, len(group1.params))
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}
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if len(group1.params) != 2 {
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t.Errorf("expected group params %d, got %d", 2, len(group1.params))
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}
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}
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func TestParserReadDhcpConfig(t *testing.T) {
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expected := []string{
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`{global}
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grants : map[unknown-clients:0]
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parameters : map[default-lease-time:1800 max-lease-time:7200]
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`,
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`{subnet4 172.33.33.0/24},{global}
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address : range4:172.33.33.128-172.33.33.254
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options : map[broadcast-address:172.33.33.255 routers:172.33.33.2]
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grants : map[unknown-clients:0]
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parameters : map[default-lease-time:2400 max-lease-time:9600]
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`,
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`{host name:vmnet8},{global}
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address : hardware-address:ethernet[00:50:56:c0:00:08],fixed-address4:172.33.33.1
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options : map[domain-name:"packer.test"]
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grants : map[unknown-clients:0]
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parameters : map[default-lease-time:1800 max-lease-time:7200]
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`,
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}
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f, err := os.Open(filepath.Join("testdata", "dhcpd-example.conf"))
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if err != nil {
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t.Fatalf("Unable to open dhcpd.conf sample: %s", err)
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}
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defer f.Close()
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config, err := ReadDhcpConfiguration(f)
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if err != nil {
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t.Fatalf("Unable to read dhcpd.conf samplpe: %s", err)
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}
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if len(config) != 3 {
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t.Fatalf("expected %d entries, got %d", 3, len(config))
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}
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for index, item := range config {
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if item.repr() != expected[index] {
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t.Errorf("Parsing of declaration %d did not match what was expected", index)
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t.Logf("Result from parsing:\n%s", item.repr())
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t.Logf("Expected to parse:\n%s", expected[index])
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}
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}
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}
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func TestParserTokenizeNetworkMap(t *testing.T) {
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test_1 := "group.attribute = \"string\""
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expected := []string{
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"group.attribute", "=", "\"string\"",
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}
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result := tokenizeDhcpConfigFromString(test_1)
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if len(result) != len(expected) {
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t.Fatalf("length of token lists do not match (%d != %d)", len(result), len(expected))
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}
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for index := range expected {
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if expected[index] != result[index] {
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t.Errorf("unexpected token at index %d: %v != %v", index, expected[index], result[index])
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}
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}
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test_2 := "attribute == \""
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expected = []string{
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"attribute", "==", "\"",
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}
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result = tokenizeDhcpConfigFromString(test_2)
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if len(result) != len(expected) {
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t.Fatalf("length of token lists do not match (%d != %d)", len(result), len(expected))
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}
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test_3 := "attribute ....... ======\nnew lines should make no difference"
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expected = []string{
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"attribute", ".......", "======", "new", "lines", "should", "make", "no", "difference",
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}
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result = tokenizeDhcpConfigFromString(test_3)
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if len(result) != len(expected) {
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t.Fatalf("length of token lists do not match (%d != %d)", len(result), len(expected))
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}
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test_4 := "\t\t\t\t thishadwhitespacebeforebeingparsed\t \t \t \t\n\n"
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expected = []string{
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"thishadwhitespacebeforebeingparsed",
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}
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result = tokenizeDhcpConfigFromString(test_4)
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if len(result) != len(expected) {
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t.Fatalf("length of token lists do not match (%d != %d)", len(result), len(expected))
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}
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}
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func TestParserReadNetworkMap(t *testing.T) {
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f, err := os.Open(filepath.Join("testdata", "netmap-example.conf"))
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if err != nil {
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t.Fatalf("Unable to open netmap.conf sample: %s", err)
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}
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defer f.Close()
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netmap, err := ReadNetworkMap(f)
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if err != nil {
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t.Fatalf("Unable to read netmap.conf samplpe: %s", err)
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}
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expected_keys := []string{"device", "name"}
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for _, item := range netmap {
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for _, name := range expected_keys {
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_, ok := item[name]
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if !ok {
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t.Errorf("unable to find expected key %v in map: %v", name, item)
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}
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}
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}
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expected_vmnet0 := [][]string{
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[]string{"device", "vmnet0"},
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[]string{"name", "Bridged"},
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}
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for _, item := range netmap {
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if item["device"] != "vmnet0" {
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continue
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}
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for _, expectpair := range expected_vmnet0 {
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name := expectpair[0]
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value := expectpair[1]
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if item[name] != value {
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t.Errorf("expected value %v for attribute %v, got %v", value, name, item[name])
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}
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}
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}
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expected_vmnet1 := [][]string{
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[]string{"device", "vmnet1"},
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[]string{"name", "HostOnly"},
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}
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for _, item := range netmap {
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if item["device"] != "vmnet1" {
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continue
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}
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for _, expectpair := range expected_vmnet1 {
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name := expectpair[0]
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value := expectpair[1]
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if item[name] != value {
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t.Errorf("expected value %v for attribute %v, got %v", value, name, item[name])
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}
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}
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}
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expected_vmnet8 := [][]string{
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[]string{"device", "vmnet8"},
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[]string{"name", "NAT"},
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}
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for _, item := range netmap {
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if item["device"] != "vmnet8" {
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continue
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}
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for _, expectpair := range expected_vmnet8 {
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name := expectpair[0]
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value := expectpair[1]
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if item[name] != value {
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t.Errorf("expected value %v for attribute %v, got %v", value, name, item[name])
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}
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}
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}
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}
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func collectIntoString(in chan byte) string {
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result := ""
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for item := range in {
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result += string(item)
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}
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return result
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}
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func TestParserConsumeUntilSentinel(t *testing.T) {
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test_1 := "consume until a semicolon; yeh?"
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expected_1 := "consume until a semicolon"
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ch := consumeString(test_1)
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resultch, _ := consumeUntilSentinel(';', ch)
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result := string(resultch)
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if expected_1 != result {
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t.Errorf("expected %#v, got %#v", expected_1, result)
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}
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test_2 := "; this is only a semi"
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expected_2 := ""
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ch = consumeString(test_2)
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resultch, _ = consumeUntilSentinel(';', ch)
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result = string(resultch)
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if expected_2 != result {
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t.Errorf("expected %#v, got %#v", expected_2, result)
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}
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}
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func TestParserFilterCharacters(t *testing.T) {
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test_1 := []string{" ", "ignore all spaces"}
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|
expected_1 := "ignoreallspaces"
|
|
|
|
ch := consumeString(test_1[1])
|
|
outch := filterOutCharacters(bytes.NewBufferString(test_1[0]).Bytes(), ch)
|
|
result := collectIntoString(outch)
|
|
if result != expected_1 {
|
|
t.Errorf("expected %#v, got %#v", expected_1, result)
|
|
}
|
|
|
|
test_2 := []string{"\n\v\t\r ", "ignore\nall\rwhite\v\v space "}
|
|
expected_2 := "ignoreallwhitespace"
|
|
|
|
ch = consumeString(test_2[1])
|
|
outch = filterOutCharacters(bytes.NewBufferString(test_2[0]).Bytes(), ch)
|
|
result = collectIntoString(outch)
|
|
if result != expected_2 {
|
|
t.Errorf("expected %#v, got %#v", expected_2, result)
|
|
}
|
|
}
|
|
|
|
func TestParserConsumeOpenClosePair(t *testing.T) {
|
|
test_1 := "(everything)"
|
|
expected_1 := []string{"", test_1}
|
|
|
|
testch := consumeString(test_1)
|
|
prefix, ch := consumeOpenClosePair('(', ')', testch)
|
|
if string(prefix) != expected_1[0] {
|
|
t.Errorf("expected prefix %#v, got %#v", expected_1[0], prefix)
|
|
}
|
|
result := collectIntoString(ch)
|
|
if result != expected_1[1] {
|
|
t.Errorf("expected %#v, got %#v", expected_1[1], test_1)
|
|
}
|
|
|
|
test_2 := "prefixed (everything)"
|
|
expected_2 := []string{"prefixed ", "(everything)"}
|
|
|
|
testch = consumeString(test_2)
|
|
prefix, ch = consumeOpenClosePair('(', ')', testch)
|
|
if string(prefix) != expected_2[0] {
|
|
t.Errorf("expected prefix %#v, got %#v", expected_2[0], prefix)
|
|
}
|
|
result = collectIntoString(ch)
|
|
if result != expected_2[1] {
|
|
t.Errorf("expected %#v, got %#v", expected_2[1], test_2)
|
|
}
|
|
|
|
test_3 := "this(is()suffixed"
|
|
expected_3 := []string{"this", "(is()"}
|
|
|
|
testch = consumeString(test_3)
|
|
prefix, ch = consumeOpenClosePair('(', ')', testch)
|
|
if string(prefix) != expected_3[0] {
|
|
t.Errorf("expected prefix %#v, got %#v", expected_3[0], prefix)
|
|
}
|
|
result = collectIntoString(ch)
|
|
if result != expected_3[1] {
|
|
t.Errorf("expected %#v, got %#v", expected_3[1], test_2)
|
|
}
|
|
}
|
|
|
|
func TestParserCombinators(t *testing.T) {
|
|
|
|
test_1 := "across # ignore\nmultiple lines;"
|
|
expected_1 := "across multiple lines"
|
|
|
|
ch := consumeString(test_1)
|
|
inch := uncomment(ch)
|
|
whch := filterOutCharacters([]byte{'\n'}, inch)
|
|
resultch, _ := consumeUntilSentinel(';', whch)
|
|
result := string(resultch)
|
|
if expected_1 != result {
|
|
t.Errorf("expected %#v, got %#v", expected_1, result)
|
|
}
|
|
|
|
test_2 := "lease blah {\n blah\r\n# skipping this line\nblahblah # ignore semicolon;\n last item;\n\n };;;;;;"
|
|
expected_2 := []string{"lease blah ", "{ blahblahblah last item; }"}
|
|
|
|
ch = consumeString(test_2)
|
|
inch = uncomment(ch)
|
|
whch = filterOutCharacters([]byte{'\n', '\v', '\r'}, inch)
|
|
prefix, pairch := consumeOpenClosePair('{', '}', whch)
|
|
|
|
result = collectIntoString(pairch)
|
|
if string(prefix) != expected_2[0] {
|
|
t.Errorf("expected prefix %#v, got %#v", expected_2[0], prefix)
|
|
}
|
|
if result != expected_2[1] {
|
|
t.Errorf("expected %#v, got %#v", expected_2[1], result)
|
|
}
|
|
|
|
test_3 := "lease blah { # comment\n item 1;\n item 2;\n } not imortant"
|
|
expected_3_prefix := "lease blah "
|
|
expected_3 := []string{"{ item 1", " item 2", " }"}
|
|
|
|
sch := consumeString(test_3)
|
|
inch = uncomment(sch)
|
|
wch := filterOutCharacters([]byte{'\n', '\v', '\r'}, inch)
|
|
lease, itemch := consumeOpenClosePair('{', '}', wch)
|
|
if string(lease) != expected_3_prefix {
|
|
t.Errorf("expected %#v, got %#v", expected_3_prefix, string(lease))
|
|
}
|
|
|
|
result_3 := []string{}
|
|
for reading := true; reading; {
|
|
item, ok := consumeUntilSentinel(';', itemch)
|
|
result_3 = append(result_3, string(item))
|
|
if !ok {
|
|
reading = false
|
|
}
|
|
}
|
|
|
|
for index := range expected_3 {
|
|
if expected_3[index] != result_3[index] {
|
|
t.Errorf("expected index %d as %#v, got %#v", index, expected_3[index], result_3[index])
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParserDhcpdLeaseBytesDecoder(t *testing.T) {
|
|
test_1 := "00:0d:0e:0a:0d:00"
|
|
expected_1 := []byte{0, 13, 14, 10, 13, 0}
|
|
|
|
result, err := decodeDhcpdLeaseBytes(test_1)
|
|
if err != nil {
|
|
t.Errorf("unable to decode address: %s", err)
|
|
}
|
|
if bytes.Compare(result, expected_1) != 0 {
|
|
t.Errorf("expected %v, got %v", expected_1, result)
|
|
}
|
|
|
|
test_2 := "11"
|
|
expected_2 := []byte{17}
|
|
|
|
result, err = decodeDhcpdLeaseBytes(test_2)
|
|
if err != nil {
|
|
t.Errorf("unable to decode address: %s", err)
|
|
}
|
|
if bytes.Compare(result, expected_2) != 0 {
|
|
t.Errorf("expected %v, got %v", expected_2, result)
|
|
}
|
|
|
|
failtest_1 := ""
|
|
result, err = decodeDhcpdLeaseBytes(failtest_1)
|
|
if err == nil {
|
|
t.Errorf("expected decoding error: %s", err)
|
|
}
|
|
|
|
failtest_2 := "000000"
|
|
result, err = decodeDhcpdLeaseBytes(failtest_2)
|
|
if err == nil {
|
|
t.Errorf("expected decoding error: %s", err)
|
|
}
|
|
|
|
failtest_3 := "000:00"
|
|
result, err = decodeDhcpdLeaseBytes(failtest_3)
|
|
if err == nil {
|
|
t.Errorf("expected decoding error: %s", err)
|
|
}
|
|
|
|
failtest_4 := "00:00:"
|
|
result, err = decodeDhcpdLeaseBytes(failtest_4)
|
|
if err == nil {
|
|
t.Errorf("expected decoding error: %s", err)
|
|
}
|
|
}
|