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strnum.test.js8.4 KB · 174 lines
1import toNumber from "./strnum.js";2 3describe("Should convert all the valid numeric strings to number", () => {4    it("should return undefined, null, empty string, or non-numeric as it is", () => {5        expect(toNumber(undefined)).not.toBeDefined();6        expect(toNumber(null)).toEqual(null);7        expect(toNumber("")).toEqual("");8        expect(toNumber("string")).toEqual("string");9        expect(toNumber("e89794659669cb7bb967db73a7ea6889c3891727")).toEqual("e89794659669cb7bb967db73a7ea6889c3891727");10        11    });12    it("should not parse number with spaces or comma", () => {13        expect(toNumber("12,12")).toEqual("12,12");14        expect(toNumber("12 12")).toEqual("12 12");15        expect(toNumber("12-12")).toEqual("12-12");16        expect(toNumber("12.12.12")).toEqual("12.12.12");17    })18    it("should consider + sign", () => {19        expect(toNumber("+12")).toEqual(12);20        expect(toNumber("+ 12")).toEqual("+ 12");21        expect(toNumber("12+12")).toEqual("12+12");22        expect(toNumber("1212+")).toEqual("1212+");23    })24    it("should parse hexadecimal values", () => {25        expect(toNumber("0x2f")).toEqual(47);26        expect(toNumber("-0x2f")).toEqual(-47);27        expect(toNumber("0x2f", { hex :  true})).toEqual(47);28        expect(toNumber("-0x2f", { hex :  true})).toEqual(-47);29        expect(toNumber("0x2f", { hex :  false})).toEqual("0x2f");30        expect(toNumber("-0x2f", { hex :  false})).toEqual("-0x2f");31    })32    it("should not parse strings with 0x embedded", () => {33        expect(toNumber("0xzz")).toEqual("0xzz");34        expect(toNumber("iweraf0x123qwerqwer")).toEqual("iweraf0x123qwerqwer");35        expect(toNumber("1230x55")).toEqual("1230x55");36        expect(toNumber("JVBERi0xLjMNCiXi48")).toEqual("JVBERi0xLjMNCiXi48");37    })38    it("leading zeros", () => {39        expect(toNumber("0")).toEqual(0);40        expect(toNumber("00")).toEqual(0);41        expect(toNumber("00.0")).toEqual(0);42 43        expect(toNumber("0",{ leadingZeros :  false})).toEqual(0);44        expect(toNumber("00",{ leadingZeros :  false})).toEqual("00");45        expect(toNumber("00.0",{ leadingZeros :  false})).toEqual("00.0");46 47        expect(toNumber("06")).toEqual(6);48        expect(toNumber("06", { leadingZeros :  true})).toEqual(6);49        expect(toNumber("06", { leadingZeros :  false})).toEqual("06");50 51        expect(toNumber("006")).toEqual(6);52        expect(toNumber("006", { leadingZeros :  true})).toEqual(6);53        expect(toNumber("006", { leadingZeros :  false})).toEqual("006");54 55        expect(toNumber("000000000000000000000000017717"  ,  { leadingZeros :  false})).toEqual("000000000000000000000000017717");56        expect(toNumber("000000000000000000000000017717"  ,  { leadingZeros :  true})).toEqual(17717);57        expect(toNumber("020211201030005811824")  ).toEqual("020211201030005811824");58        expect(toNumber("0420926189200190257681175017717")  ).toEqual(4.209261892001902e+29);59    })60    it("invalid floating number", () => {61        expect(toNumber("20.21.030")  ).toEqual("20.21.030");62        expect(toNumber("0.21.030")  ).toEqual("0.21.030");63        expect(toNumber("0.21.")  ).toEqual("0.21.");64    });65    it("floating point and leading zeros", () => {66        expect(toNumber("0.")).toEqual(0);67        expect(toNumber("+0.")).toEqual(0);68        expect(toNumber("-0.")).toEqual(-0);69        expect(toNumber("1.")  ).toEqual(1);70        expect(toNumber("00.00")).toEqual(0);71        expect(toNumber("0.06")).toEqual(0.06);72        expect(toNumber("00.6")).toEqual(0.6);73        expect(toNumber(".006")).toEqual(0.006);74        expect(toNumber("6.0")).toEqual(6);75        expect(toNumber("06.0")).toEqual(6);76        77        expect(toNumber("0.0",  { leadingZeros :  false})).toEqual(0);78        expect(toNumber("00.00",  { leadingZeros :  false})).toEqual("00.00");79        expect(toNumber("0.06",  { leadingZeros :  false})).toEqual(0.06);80        expect(toNumber("00.6",  { leadingZeros :  false})).toEqual("00.6");81        expect(toNumber(".006", { leadingZeros :  false})).toEqual(0.006);82        expect(toNumber("6.0"  ,  { leadingZeros :  false})).toEqual(6);83        expect(toNumber("06.0"  ,  { leadingZeros :  false})).toEqual("06.0");84    })85    it("negative number  leading zeros", () => {86        expect(toNumber("+06")).toEqual(6);87        expect(toNumber("-06")).toEqual(-6);88        expect(toNumber("-06", { leadingZeros :  true})).toEqual(-6);89        expect(toNumber("-06", { leadingZeros :  false})).toEqual("-06");90        91        expect(toNumber("-0.0")).toEqual(-0);92        expect(toNumber("-00.00")).toEqual(-0);93        expect(toNumber("-0.06")).toEqual(-0.06);94        expect(toNumber("-00.6")).toEqual(-0.6);95        expect(toNumber("-.006")).toEqual(-0.006);96        expect(toNumber("-6.0")).toEqual(-6);97        expect(toNumber("-06.0")).toEqual(-6);98        expect(toNumber("+06.0")).toEqual(6);99        100        expect(toNumber("-0.0"   ,  { leadingZeros :  false})).toEqual(-0);101        expect(toNumber("-00.00",  { leadingZeros :  false})).toEqual("-00.00");102        expect(toNumber("-0.06",  { leadingZeros :  false})).toEqual(-0.06);103        expect(toNumber("-00.6",  { leadingZeros :  false})).toEqual("-00.6");104        expect(toNumber("-.006",  {leadingZeros :  false})).toEqual(-0.006);105        expect(toNumber("-6.0"  ,  { leadingZeros :  false})).toEqual(-6);106        expect(toNumber("-06.0"  ,  { leadingZeros :  false})).toEqual("-06.0");107    })108    it("long number", () => {109        expect(toNumber("020211201030005811824")  ).toEqual("020211201030005811824");110        expect(toNumber("20211201030005811824")  ).toEqual("20211201030005811824");111        expect(toNumber("20.211201030005811824")  ).toEqual("20.211201030005811824");112        expect(toNumber("0.211201030005811824")  ).toEqual("0.211201030005811824");113    });114    it("scientific notation", () => {115        expect(toNumber("01.0e2"  ,  { leadingZeros :  false})).toEqual("01.0e2");116        expect(toNumber("-01.0e2"  ,  { leadingZeros :  false})).toEqual("-01.0e2");117        expect(toNumber("01.0e2") ).toEqual(100);118        expect(toNumber("-01.0e2") ).toEqual(-100);119        expect(toNumber("1.0e2") ).toEqual(100);120 121        expect(toNumber("-1.0e2") ).toEqual(-100);122        expect(toNumber("1.0e-2")).toEqual(0.01);123        124        expect(toNumber("420926189200190257681175017717")  ).toEqual(4.209261892001902e+29);125        expect(toNumber("420926189200190257681175017717" , { eNotation: false} )).toEqual("420926189200190257681175017717");126        127        expect(toNumber("1e-2")).toEqual(0.01);128        expect(toNumber("1e+2")).toEqual(100);129        expect(toNumber("1.e+2")).toEqual(100);130    });131 132    it("scientific notation with upper E", () => {133        expect(toNumber("01.0E2"  ,  { leadingZeros :  false})).toEqual("01.0E2");134        expect(toNumber("-01.0E2"  ,  { leadingZeros :  false})).toEqual("-01.0E2");135        expect(toNumber("01.0E2") ).toEqual(100);136        expect(toNumber("-01.0E2") ).toEqual(-100);137        expect(toNumber("1.0E2") ).toEqual(100);138 139        expect(toNumber("-1.0E2") ).toEqual(-100);140        expect(toNumber("1.0E-2")).toEqual(0.01);141 142        expect(toNumber("E-2")).toEqual("E-2");143        expect(toNumber("E2")).toEqual("E2");144        expect(toNumber("0E2")).toEqual(0);145        expect(toNumber("-0E2")).toEqual(-0);146        expect(toNumber("00E2")).toEqual("00E2");147        expect(toNumber("00E2",  { leadingZeros :  false})).toEqual("00E2");148    });149    150    it("should skip matching pattern", () => {151        expect(toNumber("0", { skipLike: /.*/ })).toEqual("0");152        expect(toNumber("+12", { skipLike: /\+[0-9]{10}/} )).toEqual(12);153        expect(toNumber("12+12", { skipLike: /\+[0-9]{10}/} )).toEqual("12+12");154        expect(toNumber("12+1212121212", { skipLike: /\+[0-9]{10}/} )).toEqual("12+1212121212");155        expect(toNumber("+1212121212") ).toEqual(1212121212);156        expect(toNumber("+1212121212", { skipLike: /\+[0-9]{10}/} )).toEqual("+1212121212");157    })158    it("should not change string if not number", () => {159        expect(toNumber("+12 12")).toEqual("+12 12");160        expect(toNumber("    +12 12   ")).toEqual("    +12 12   ");161    })162    it("should ignore sorrounded spaces ", () => {163        expect(toNumber("   +1212   ")).toEqual(1212);164    })165    166    it("negative numbers", () => {167        expect(toNumber("+1212")).toEqual(1212);168        expect(toNumber("+12.12")).toEqual(12.12);169        expect(toNumber("-12.12")).toEqual(-12.12);170        expect(toNumber("-012.12")).toEqual(-12.12);171        expect(toNumber("-012.12")).toEqual(-12.12);172    })173});174