First commit

vendor/github.com/tdewolff/parse/strconv/int_test.go

@@ -0,0 +1,95 @@
+package strconv // import "github.com/tdewolff/parse/strconv"
+
+import (
+	"math"
+	"math/rand"
+	"testing"
+
+	"github.com/tdewolff/test"
+)
+
+func TestParseInt(t *testing.T) {
+	intTests := []struct {
+		i        string
+		expected int64
+	}{
+		{"5", 5},
+		{"99", 99},
+		{"999", 999},
+		{"-5", -5},
+		{"+5", 5},
+		{"9223372036854775807", 9223372036854775807},
+		{"9223372036854775808", 0},
+		{"-9223372036854775807", -9223372036854775807},
+		{"-9223372036854775808", -9223372036854775808},
+		{"-9223372036854775809", 0},
+		{"18446744073709551620", 0},
+		{"a", 0},
+	}
+	for _, tt := range intTests {
+		i, _ := ParseInt([]byte(tt.i))
+		test.That(t, i == tt.expected, "return", tt.expected, "for", tt.i)
+	}
+}
+
+func TestLenInt(t *testing.T) {
+	lenIntTests := []struct {
+		number   int64
+		expected int
+	}{
+		{0, 1},
+		{1, 1},
+		{10, 2},
+		{99, 2},
+
+		// coverage
+		{100, 3},
+		{1000, 4},
+		{10000, 5},
+		{100000, 6},
+		{1000000, 7},
+		{10000000, 8},
+		{100000000, 9},
+		{1000000000, 10},
+		{10000000000, 11},
+		{100000000000, 12},
+		{1000000000000, 13},
+		{10000000000000, 14},
+		{100000000000000, 15},
+		{1000000000000000, 16},
+		{10000000000000000, 17},
+		{100000000000000000, 18},
+		{1000000000000000000, 19},
+	}
+	for _, tt := range lenIntTests {
+		test.That(t, LenInt(tt.number) == tt.expected, "return", tt.expected, "for", tt.number)
+	}
+}
+
+////////////////////////////////////////////////////////////////
+
+var num []int64
+
+func TestMain(t *testing.T) {
+	for j := 0; j < 1000; j++ {
+		num = append(num, rand.Int63n(1000))
+	}
+}
+
+func BenchmarkLenIntLog(b *testing.B) {
+	n := 0
+	for i := 0; i < b.N; i++ {
+		for j := 0; j < 1000; j++ {
+			n += int(math.Log10(math.Abs(float64(num[j])))) + 1
+		}
+	}
+}
+
+func BenchmarkLenIntSwitch(b *testing.B) {
+	n := 0
+	for i := 0; i < b.N; i++ {
+		for j := 0; j < 1000; j++ {
+			n += LenInt(num[j])
+		}
+	}
+}