✔️ TEST: Add converting testing and refactor

Signed-off-by: Luca Dillenburg <luca.assumpcao.dillenburg@gmail.com>

test/README.md

@@ -1,9 +1,8 @@
 # Test
 
-## Run
+## Run Test
 ```sh
-go run main.go # from main.go
-go test # from main_test.go
+go test
 ```
 
 ---

test/main.go

@@ -1,54 +1,14 @@
 package main
 
 import (
-	"bufio"
-	"fmt"
 	"io"
-	"os"
 	"os/exec"
 	"strconv"
-	"strings"
 )
 
-func main() {
-	stdout, err := runCommand("java", "-jar", "../logisim-evolution.jar", "../main.circ", "-load", "program", "-tty", "table")
-	if err != nil {
-		os.Exit(1)
-	}
-
-	expected := []string{"1335", "EECD", "1234", "f000", "0000", "f000", "0001", "0000", "0001", "8888"}
-
-	fmt.Printf("started!\n")
-
-	scanner := bufio.NewScanner(stdout)
-	scanner.Scan() // ignores first print
-	var i = 0
-	for scanner.Scan() {
-		line := scanner.Text()
-
-		binaryStr := strings.ReplaceAll(line, " ", "")[0:16]
-		gotNum, errBinary := binaryStringToNumber(binaryStr)
-
-		expectedNum, errHex := hexStringToNumber(expected[i])
-
-		if errBinary != nil || errHex != nil {
-			fmt.Printf("Parsing error. ErrBinary: '%t', ErrHex: '%t'.", errBinary, errHex)
-		} else if gotNum != expectedNum {
-			fmt.Printf("Got different then expected. Expected: %d, but got: %d.\n", expectedNum, gotNum)
-		} else {
-			fmt.Printf("%d is right!\n", i)
-		}
-
-		i++
-		fmt.Printf("len(expected) == i || %d == %d || expected: %d\n", len(expected), i, expectedNum)
-		if len(expected) == i {
-			fmt.Print("breaked")
-			break
-		}
-	}
-
-	fmt.Print("closed")
-	stdout.Close()
+func runProgram(programPath string) (io.ReadCloser, error) {
+	stdout, err := runCommand("java", "-jar", "../logisim-evolution.jar", "../main.circ", "-load", programPath, "-tty", "table")
+	return stdout, err
 }
 
 func binaryStringToNumber(s string) (uint64, error) {

test/main_test.go

@@ -1 +1,85 @@
-// TODO: migrate main.go to test
+package main
+
+import (
+	"bufio"
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestProgram(t *testing.T) {
+	stdout, err := runProgram("program")
+
+	if err != nil {
+		os.Exit(1)
+	}
+
+	expected := []string{"1335", "EECD", "1234", "f000", "0000", "f000", "0001", "0000", "0001", "8888"}
+
+	scanner := bufio.NewScanner(stdout)
+	scanner.Scan() // ignores first print
+	var i = 0
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		binaryStr := strings.ReplaceAll(line, " ", "")[0:16]
+		gotNum, errBinary := binaryStringToNumber(binaryStr)
+
+		expectedNum, errHex := hexStringToNumber(expected[i])
+
+		if errBinary != nil || errHex != nil {
+			t.Errorf("Parsing error. ErrBinary: '%t', ErrHex: '%t'.", errBinary, errHex)
+		} else if gotNum != expectedNum {
+			t.Errorf("Got different then expected. Expected: %d, but got: %d.\n", expectedNum, gotNum)
+		}
+
+		i++
+		if len(expected) == i {
+			break
+		}
+	}
+
+	stdout.Close()
+}
+
+func TestBinaryStringToNumber(t *testing.T) {
+	tests := []struct {
+		param  string
+		expect uint64
+	}{
+		{param: "0000000000000001", expect: 1},
+		{param: "1000000000000001", expect: 32769},
+		{param: "0001001100110101", expect: 4917},
+		{param: "1111111111111111", expect: 65535},
+	}
+
+	for i, test := range tests {
+		got, err := binaryStringToNumber(test.param)
+		if err != nil {
+			t.Errorf("[%d] Error: %t", i, err)
+		} else if got != test.expect {
+			t.Errorf("[%d] Got: %d | Expected: %d", i, got, test.expect)
+		}
+	}
+}
+
+func TestHexStringToNumber(t *testing.T) {
+	tests := []struct {
+		param  string
+		expect uint64
+	}{
+		{param: "0001", expect: 1},
+		{param: "8001", expect: 32769},
+		{param: "1335", expect: 4917},
+		{param: "ffff", expect: 65535},
+	}
+
+	for i, test := range tests {
+		got, err := hexStringToNumber(test.param)
+		if err != nil {
+			t.Errorf("[%d] Error: %t", i, err)
+		} else if got != test.expect {
+			t.Errorf("[%d] Got: %d | Expected: %d", i, got, test.expect)
+		}
+	}
+}