rewrite in go and compile to wasm

test/tests.json

@@ -0,0 +1,29 @@
+{
+    "p0": {
+        "penalties": {
+            "m": 0,
+            "x": 1,
+            "o": 2,
+            "e": 1
+        },
+        "solutions": "test_affine_p0_sol"
+    },
+    "p1": {
+        "penalties": {
+            "m": 0,
+            "x": 3,
+            "o": 1,
+            "e": 4
+        },
+        "solutions": "test_affine_p1_sol"
+    },
+    "p2": {
+        "penalties": {
+            "m": 0,
+            "x": 5,
+            "o": 3,
+            "e": 2
+        },
+        "solutions": "test_affine_p2_sol"
+    }
+}

test/wfa_test.go

@@ -0,0 +1,78 @@
+package tests
+
+import (
+	"bufio"
+	"encoding/json"
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+	wfa "wfa/pkg"
+
+	"github.com/schollz/progressbar/v3"
+)
+
+const testJsonPath = "tests.json"
+const testSequences = "sequences"
+
+type TestPenalty struct {
+	M int `json:"m"`
+	X int `json:"x"`
+	O int `json:"o"`
+	E int `json:"e"`
+}
+
+type TestCase struct {
+	Penalties TestPenalty `json:"penalties"`
+	Solutions string      `json:"solutions"`
+}
+
+func TestWFA(t *testing.T) {
+	content, _ := os.ReadFile(testJsonPath)
+
+	var testMap map[string]TestCase
+	json.Unmarshal(content, &testMap)
+
+	for k, v := range testMap {
+		testName := k
+
+		testPenalties := wfa.Penalty{
+			M: v.Penalties.M,
+			X: v.Penalties.X,
+			O: v.Penalties.O,
+			E: v.Penalties.E,
+		}
+
+		sequencesFile, _ := os.Open(testSequences)
+		sequences := bufio.NewScanner(sequencesFile)
+		solutionsFile, _ := os.Open(v.Solutions)
+		solutions := bufio.NewScanner(solutionsFile)
+
+		bar := progressbar.Default(305, k)
+
+		idx := 0
+
+		for solutions.Scan() {
+			solution := solutions.Text()
+			expectedScore, _ := strconv.Atoi(strings.Split(solution, "\t")[0])
+
+			sequences.Scan()
+			s1 := sequences.Text()
+			s1 = s1[1:]
+
+			sequences.Scan()
+			s2 := sequences.Text()
+			s2 = s2[1:]
+
+			x := wfa.WFAlign(s1, s2, testPenalties, false)
+			gotScore := x.Score
+
+			if gotScore != -1*expectedScore {
+				t.Errorf(`test: %s#%d, s1: %s, s2: %s, got: %d, expected: %d\n`, testName, idx, s1, s2, gotScore, expectedScore)
+			}
+
+			idx++
+			bar.Add(1)
+		}
+	}
+}