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

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