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Commit 4ec7cee

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author
Shuo
authored
Merge pull request #670 from openset/develop
Add: Valid Number
2 parents 02820c3 + c17cc27 commit 4ec7cee

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2 files changed

+91
-2
lines changed

2 files changed

+91
-2
lines changed

‎problems/valid-number/valid_number.go

Lines changed: 12 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1 +1,12 @@
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package valid_number
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package problem_65
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import (
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"strconv"
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"strings"
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)
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func isNumber(s string) bool {
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s = strings.TrimSpace(s)
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_, err := strconv.ParseFloat(s, 64)
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return err == nil || err.(*strconv.NumError).Err != strconv.ErrSyntax
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}
Lines changed: 79 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1 +1,79 @@
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package valid_number
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package problem_65
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import "testing"
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type caseType struct {
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input string
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expected bool
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}
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func TestIsNumber(t *testing.T) {
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tests := [...]caseType{
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{
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input: "0",
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expected: true,
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},
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{
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input: " 0.1",
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expected: true,
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},
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{
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input: "abc",
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expected: false,
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},
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{
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input: "1 a",
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expected: false,
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},
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{
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input: "2e10",
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expected: true,
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},
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{
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input: " -90e3 ",
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expected: true,
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},
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{
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input: " 1e",
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expected: false,
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},
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{
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input: "e3",
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expected: false,
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},
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{
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input: " 6e-1",
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expected: true,
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},
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{
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input: " 99e2.5 ",
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expected: false,
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},
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{
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input: "53.5e93",
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expected: true,
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},
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{
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input: " --6 ",
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expected: false,
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},
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{
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input: "-+3",
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expected: false,
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},
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{
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input: "95a54e53",
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expected: false,
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},
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{
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input: "078332e437",
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expected: true,
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},
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}
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for _, tc := range tests {
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output := isNumber(tc.input)
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if output != tc.expected {
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t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)
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}
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}
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}

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