151 lines
7.4 KiB
JavaScript
151 lines
7.4 KiB
JavaScript
const toNumber = require("./strnum");
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describe("Should convert all the valid numeric strings to number", () => {
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it("should return undefined, null, empty string, or non-numeric as it is", () => {
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expect(toNumber(undefined)).not.toBeDefined();
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expect(toNumber(null)).toEqual(null);
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expect(toNumber("")).toEqual("");
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expect(toNumber("string")).toEqual("string");
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});
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it("should not parse number with spaces or comma", () => {
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expect(toNumber("12,12")).toEqual("12,12");
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expect(toNumber("12 12")).toEqual("12 12");
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expect(toNumber("12-12")).toEqual("12-12");
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expect(toNumber("12.12.12")).toEqual("12.12.12");
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})
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it("should consider + sign", () => {
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expect(toNumber("+12")).toEqual(12);
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expect(toNumber("+ 12")).toEqual("+ 12");
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expect(toNumber("12+12")).toEqual("12+12");
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expect(toNumber("1212+")).toEqual("1212+");
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})
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it("should parse hexadecimal values", () => {
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expect(toNumber("0x2f")).toEqual(47);
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expect(toNumber("-0x2f")).toEqual(-47);
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expect(toNumber("0x2f", { hex : true})).toEqual(47);
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expect(toNumber("-0x2f", { hex : true})).toEqual(-47);
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expect(toNumber("0x2f", { hex : false})).toEqual("0x2f");
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expect(toNumber("-0x2f", { hex : false})).toEqual("-0x2f");
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})
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it("should not parse strings with 0x embedded", () => {
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expect(toNumber("0xzz")).toEqual("0xzz");
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expect(toNumber("iweraf0x123qwerqwer")).toEqual("iweraf0x123qwerqwer");
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expect(toNumber("1230x55")).toEqual("1230x55");
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expect(toNumber("JVBERi0xLjMNCiXi48")).toEqual("JVBERi0xLjMNCiXi48");
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})
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it("leading zeros", () => {
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expect(toNumber("06")).toEqual(6);
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expect(toNumber("06", { leadingZeros : true})).toEqual(6);
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expect(toNumber("06", { leadingZeros : false})).toEqual("06");
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expect(toNumber("006")).toEqual(6);
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expect(toNumber("006", { leadingZeros : true})).toEqual(6);
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expect(toNumber("006", { leadingZeros : false})).toEqual("006");
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expect(toNumber("000000000000000000000000017717" , { leadingZeros : false})).toEqual("000000000000000000000000017717");
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expect(toNumber("000000000000000000000000017717" , { leadingZeros : true})).toEqual(17717);
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expect(toNumber("020211201030005811824") ).toEqual("020211201030005811824");
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expect(toNumber("0420926189200190257681175017717") ).toEqual(4.209261892001902e+29);
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})
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it("invalid floating number", () => {
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expect(toNumber("20.21.030") ).toEqual("20.21.030");
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expect(toNumber("0.21.030") ).toEqual("0.21.030");
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expect(toNumber("0.21.") ).toEqual("0.21.");
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expect(toNumber("0.") ).toEqual("0.");
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expect(toNumber("1.") ).toEqual("1.");
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});
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it("floating point and leading zeros", () => {
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expect(toNumber("0.0")).toEqual(0);
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expect(toNumber("00.00")).toEqual(0);
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expect(toNumber("0.06")).toEqual(0.06);
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expect(toNumber("00.6")).toEqual(0.6);
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expect(toNumber(".006")).toEqual(0.006);
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expect(toNumber("6.0")).toEqual(6);
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expect(toNumber("06.0")).toEqual(6);
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expect(toNumber("0.0", { leadingZeros : false})).toEqual(0);
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expect(toNumber("00.00", { leadingZeros : false})).toEqual("00.00");
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expect(toNumber("0.06", { leadingZeros : false})).toEqual(0.06);
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expect(toNumber("00.6", { leadingZeros : false})).toEqual("00.6");
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expect(toNumber(".006", { leadingZeros : false})).toEqual(0.006);
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expect(toNumber("6.0" , { leadingZeros : false})).toEqual(6);
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expect(toNumber("06.0" , { leadingZeros : false})).toEqual("06.0");
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})
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it("negative number leading zeros", () => {
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expect(toNumber("+06")).toEqual(6);
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expect(toNumber("-06")).toEqual(-6);
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expect(toNumber("-06", { leadingZeros : true})).toEqual(-6);
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expect(toNumber("-06", { leadingZeros : false})).toEqual("-06");
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expect(toNumber("-0.0")).toEqual(-0);
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expect(toNumber("-00.00")).toEqual(-0);
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expect(toNumber("-0.06")).toEqual(-0.06);
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expect(toNumber("-00.6")).toEqual(-0.6);
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expect(toNumber("-.006")).toEqual(-0.006);
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expect(toNumber("-6.0")).toEqual(-6);
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expect(toNumber("-06.0")).toEqual(-6);
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expect(toNumber("-0.0" , { leadingZeros : false})).toEqual(-0);
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expect(toNumber("-00.00", { leadingZeros : false})).toEqual("-00.00");
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expect(toNumber("-0.06", { leadingZeros : false})).toEqual(-0.06);
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expect(toNumber("-00.6", { leadingZeros : false})).toEqual("-00.6");
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expect(toNumber("-.006", {leadingZeros : false})).toEqual(-0.006);
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expect(toNumber("-6.0" , { leadingZeros : false})).toEqual(-6);
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expect(toNumber("-06.0" , { leadingZeros : false})).toEqual("-06.0");
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})
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it("long number", () => {
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expect(toNumber("020211201030005811824") ).toEqual("020211201030005811824");
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expect(toNumber("20211201030005811824") ).toEqual("20211201030005811824");
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expect(toNumber("20.211201030005811824") ).toEqual("20.211201030005811824");
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expect(toNumber("0.211201030005811824") ).toEqual("0.211201030005811824");
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});
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it("scientific notation", () => {
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expect(toNumber("01.0e2" , { leadingZeros : false})).toEqual("01.0e2");
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expect(toNumber("-01.0e2" , { leadingZeros : false})).toEqual("-01.0e2");
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expect(toNumber("01.0e2") ).toEqual(100);
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expect(toNumber("-01.0e2") ).toEqual(-100);
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expect(toNumber("1.0e2") ).toEqual(100);
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expect(toNumber("-1.0e2") ).toEqual(-100);
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expect(toNumber("1.0e-2")).toEqual(0.01);
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expect(toNumber("420926189200190257681175017717") ).toEqual(4.209261892001902e+29);
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expect(toNumber("420926189200190257681175017717" , { eNotation: false} )).toEqual("420926189200190257681175017717");
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});
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it("scientific notation with upper E", () => {
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expect(toNumber("01.0E2" , { leadingZeros : false})).toEqual("01.0E2");
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expect(toNumber("-01.0E2" , { leadingZeros : false})).toEqual("-01.0E2");
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expect(toNumber("01.0E2") ).toEqual(100);
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expect(toNumber("-01.0E2") ).toEqual(-100);
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expect(toNumber("1.0E2") ).toEqual(100);
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expect(toNumber("-1.0E2") ).toEqual(-100);
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expect(toNumber("1.0E-2")).toEqual(0.01);
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});
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it("should skip matching pattern", () => {
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expect(toNumber("+12", { skipLike: /\+[0-9]{10}/} )).toEqual(12);
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expect(toNumber("12+12", { skipLike: /\+[0-9]{10}/} )).toEqual("12+12");
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expect(toNumber("12+1212121212", { skipLike: /\+[0-9]{10}/} )).toEqual("12+1212121212");
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expect(toNumber("+1212121212") ).toEqual(1212121212);
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expect(toNumber("+1212121212", { skipLike: /\+[0-9]{10}/} )).toEqual("+1212121212");
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})
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it("should not change string if not number", () => {
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expect(toNumber("+12 12")).toEqual("+12 12");
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expect(toNumber(" +12 12 ")).toEqual(" +12 12 ");
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})
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it("should ignore sorrounded spaces ", () => {
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expect(toNumber(" +1212 ")).toEqual(1212);
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})
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it("negative numbers", () => {
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expect(toNumber("+1212")).toEqual(1212);
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expect(toNumber("+12.12")).toEqual(12.12);
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expect(toNumber("-12.12")).toEqual(-12.12);
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expect(toNumber("-012.12")).toEqual(-12.12);
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expect(toNumber("-012.12")).toEqual(-12.12);
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})
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});
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