320 lines
8.4 KiB
Go
320 lines
8.4 KiB
Go
package encoding
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import (
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"bytes"
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"testing"
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)
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var (
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short8nString = "Sunshine"
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longNot8nString = "Golden rays play, Chasing night away."
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long8nString = "Ducks are fucking great, they quacks, O quackers, what the fuck."
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short8nStringEncodedBytes = []byte{0b11010011, 0b10111010, 0b01111011, 0b10001110, 0b01001110, 0b10111011, 0b11001011}
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longNot8nStringEncodedBytes = []byte{0b11000111, 0b00110111, 0b10011011, 0b01011100, 0b01110110, 0b10000011, 0b11100100, 0b11100001, 0b11111100, 0b00011100, 0b00000100, 0b01100111, 0b10000111, 0b11110011, 0b00101100, 0b11010000, 0b00010000, 0b00011101, 0b10011110, 0b10100111, 0b11011101, 0b01100111, 0b10010000, 0b00111011, 0b01111101, 0b01000110, 0b11010011, 0b01000001, 0b11100001, 0b01111011, 0b00111000, 0b11101111, 0b00000010}
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long8nStringEncodedBytes = []byte{0b11000100, 0b11111010, 0b01111000, 0b00111101, 0b00000111, 0b10000101, 0b11100101, 0b01100101, 0b10010000, 0b10111001, 0b00111110, 0b01011110, 0b10100111, 0b11011101, 0b01100111, 0b11010000, 0b01011001, 0b01011110, 0b00001110, 0b11010011, 0b01011001, 0b00100000, 0b00111010, 0b10111010, 0b10011100, 0b00000111, 0b11000101, 0b11101011, 0b11100001, 0b11110001, 0b01111010, 0b11001110, 0b00000010, 0b00111101, 0b01000001, 0b11110001, 0b01111010, 0b01111000, 0b10111100, 0b00101110, 0b11001011, 0b11100111, 0b00101100, 0b11010000, 0b00011101, 0b00011101, 0b10100110, 0b10000011, 0b11101000, 0b11101000, 0b00110010, 0b11001000, 0b01011100, 0b00011111, 0b10101111, 0b01011101}
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)
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// region encode
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func TestGSM7EncodeSimpleASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := short8nString
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expected := short8nStringEncodedBytes
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected '%v', but got '%v'", expected, buf.Bytes())
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}
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}
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func TestGSM7EncodeComplexASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := longNot8nString
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expected := longNot8nStringEncodedBytes
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected '%v', but got '%v'", expected, buf.Bytes())
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}
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}
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func TestGSM7EncodeComplex8nASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := "Ducks are fucking great, they quacks, O quackers, what the fuck."
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expected := long8nStringEncodedBytes
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected '%v', but got '%v'", expected, buf.Bytes())
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}
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}
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func TestGSM7EncodeEmptyString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := ""
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expected := []byte{}
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err := coder.Encode(input, &buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if !bytes.Equal(buf.Bytes(), expected) {
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t.Errorf("Expected '%v', but got '%v'", expected, buf.Bytes())
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}
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}
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// region decode
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func TestGSM7DecodeSimpleASCIIString(t *testing.T) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := short8nStringEncodedBytes
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expected := short8nString
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buf.Write(input)
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actual, err := coder.Decode(&buf)
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if err != nil {
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t.Errorf("Expected no error, but got %v", err)
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}
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if actual != expected {
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t.Errorf("Expected '%v', but got '%v'", expected, actual)
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}
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}
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// func TestGSM7DecodeComplexASCIIString(t *testing.T) {
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// coder := &GSM7Coder{}
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// var buf bytes.Buffer
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// input := longNot8nStringEncodedBytes
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// expected := longNot8nString
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// buf.Write(input)
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// actual, err := coder.Decode(&buf)
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// if err != nil {
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// t.Errorf("Expected no error, but got %v", err)
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// }
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// if actual != expected {
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// t.Errorf("Expected '%v', but got '%v'", expected, actual)
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// }
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// }
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// func TestGSM7DecodeComplex8nASCIIString(t *testing.T) {
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// coder := &GSM7Coder{}
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// var buf bytes.Buffer
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// input := long8nStringEncodedBytes
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// expected := long8nString
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// buf.Write(input)
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// actual, err := coder.Decode(&buf)
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// if err != nil {
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// t.Errorf("Expected no error, but got %v", err)
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// }
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// if actual != expected {
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// t.Errorf("Expected '%v', but got '%v'", expected, actual)
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// }
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// }
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// func TestGSM7DecodeEmptyString(t *testing.T) {
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// coder := &GSM7Coder{}
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// buf := bytes.NewBuffer([]byte{})
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// expected := ""
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// actual, err := coder.Decode(buf)
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// if err != nil {
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// t.Errorf("Expected no error, but got %v", err)
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// }
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// if actual != expected {
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// t.Errorf("Expected '%v', but got '%v'", expected, actual)
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// }
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// }
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// region insertat
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func TestInsertAtBeginning(t *testing.T) {
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data := []byte{2, 3, 4, 0}
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InsertAt(&data, 0, 1)
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expected := []byte{1, 2, 3, 4}
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if !bytes.Equal(data, expected) {
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t.Errorf("expected %v, got %v", expected, data)
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}
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}
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func TestInsertInMiddle(t *testing.T) {
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data := []byte{2, 3, 4, 0}
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InsertAt(&data, 1, 5)
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expected := []byte{2, 5, 3, 4}
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if !bytes.Equal(data, expected) {
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t.Errorf("expected %v, got %v", expected, data)
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}
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}
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func TestInsertAtEnd(t *testing.T) {
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data := []byte{1, 2, 3, 0}
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InsertAt(&data, 3, 4)
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expected := []byte{1, 2, 3, 4}
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if !bytes.Equal(data, expected) {
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t.Errorf("expected %v, got %v", expected, data)
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}
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}
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func TestIndexOutOfBounds(t *testing.T) {
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data := []byte{2, 3, 4}
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("The code did not panic")
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}
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}()
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InsertAt(&data, 4, 5)
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}
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func TestNegativeIndex(t *testing.T) {
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data := []byte{2, 3, 4}
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defer func() {
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if r := recover(); r == nil {
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t.Errorf("The code did not panic")
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}
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}()
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InsertAt(&data, -1, 1)
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}
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func TestMaintainsOrderAfterInsertion(t *testing.T) {
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data := []byte{2, 3, 4, 0}
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InsertAt(&data, 1, 1)
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expected := []byte{2, 1, 3, 4}
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if !bytes.Equal(data, expected) {
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t.Errorf("expected %v, got %v", expected, data)
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}
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}
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func TestMaintainsLength(t *testing.T) {
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data := []byte{2, 3, 4, 0}
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InsertAt(&data, 1, 1)
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if len(data) != 4 {
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t.Errorf("expected length 4, got %d", len(data))
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}
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}
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func TestDeletesLastValue(t *testing.T) {
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data := []byte{2, 3, 4, 5}
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InsertAt(&data, 0, 1)
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expected := []byte{1, 2, 3, 4}
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if !bytes.Equal(data, expected) {
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t.Errorf("expected %v, got %v", expected, data)
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}
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}
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// region misc tests
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func TestGSM7EncodesIntoSmallString(t *testing.T) {
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input := short8nString
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expected := 7
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actual := EncodesInto(&input)
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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func TestGSM7EncodesIntoLargerNot8nString(t *testing.T) {
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input := longNot8nString
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expected := 33
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actual := EncodesInto(&input)
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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func TestGSM7EncodesIntoLarger8nString(t *testing.T) {
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input := long8nString
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expected := 56
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actual := EncodesInto(&input)
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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func TestGSM7DecodesIntoSmallString(t *testing.T) {
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input := short8nStringEncodedBytes
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expected := 8
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actual := DecodesInto(bytes.NewBuffer(input))
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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func TestGSM7DecodesIntoLargerNot8nString(t *testing.T) {
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input := longNot8nStringEncodedBytes
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expected := 37
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actual := DecodesInto(bytes.NewBuffer(input))
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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func TestGSM7DecodesIntoLarger8nString(t *testing.T) {
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input := long8nStringEncodedBytes
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expected := 64
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actual := DecodesInto(bytes.NewBuffer(input))
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if actual != expected {
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t.Errorf("Expected %d, but got %d", expected, actual)
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}
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}
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// region benchmark
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func BenchmarkGSM7EncodeSimpleASCIIString(b *testing.B) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := short8nString
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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coder.Encode(input, &buf)
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}
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}
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func BenchmarkGSM7EncodeComplexASCIIString(b *testing.B) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := longNot8nString
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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coder.Encode(input, &buf)
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}
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}
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func BenchmarkGSM7EncodeComplex8nASCIIString(b *testing.B) {
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coder := &GSM7Coder{}
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var buf bytes.Buffer
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input := long8nString
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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coder.Encode(input, &buf)
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}
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}
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