Initialized a proper go module for search, began adding tests and fixed a minor bug!

search/search_test.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestNormalizeWords(t *testing.T) {
+	testCases := []struct {
+		name     string
+		input    []string
+		expected []string
+	}{
+		{"simple", []string{"one", "two", "three"}, []string{"one", "three", "two"}},
+		{"duplicates", []string{"one", "one", "two", "one", "three", "two"}, []string{"one", "three", "two"}},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			valid := normalizeWords(tc.input)
+			require.Equal(t, tc.expected, valid)
+		})
+	}
+}
+
+func TestScoreIndex(t *testing.T) {
+	testCases := []struct {
+		name     string
+		input    []string
+		index    []string
+		expected int
+	}{
+		{"simple", []string{"one", "two", "three"}, []string{"one", "three", "two"}, 3},
+		{"duplicates", []string{"one", "one"}, []string{"one", "three", "two"}, 2},
+		{"none", []string{"one", "two"}, []string{"three", "four", "five"}, 0},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			valid := scoreIndex(tc.input, tc.index)
+			require.Equal(t, tc.expected, valid)
+		})
+	}
+}