Commit97580b6

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feat: add utility for extracting error message

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	`1`	`+import{errorString,Language}from"./error"`
	`2`	`+`
	`3`	`+describe("error",()=>{`
	`4`	`+describe("errorStr",()=>{`
	`5`	`+it("returns message if error",()=>{`
	`6`	`+expect(errorString(newError("foobar"))).toBe("foobar")`
	`7`	`+})`
	`8`	`+it("returns message if string",()=>{`
	`9`	`+expect(errorString("bazzle")).toBe("bazzle")`
	`10`	`+})`
	`11`	`+it("returns message if undefined or empty",()=>{`
	`12`	`+expect(errorString(undefined)).toBe(Language.noError)`
	`13`	`+expect(errorString("")).toBe(Language.noError)`
	`14`	`+})`
	`15`	`+it("returns message if anything else",()=>{`
	`16`	`+expect(errorString({qux:"fred"})).toBe(Language.unexpectedError)`
	`17`	`+expect(errorString({qux:1})).toBe(Language.unexpectedError)`
	`18`	`+})`
	`19`	`+})`
	`20`	`+})`

Lines changed: 20 additions & 0 deletions

Original file line number	Diff line number	Diff line change
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	`1`	`+exportconstLanguage={`
	`2`	`+unexpectedError:"Unexpected error: see console for details",`
	`3`	`+noError:"No error provided",`
	`4`	`+}`
	`5`	`+`
	`6`	`+/**`
	`7`	`+ * Best effort to get a string from what could be an error or anything else.`
	`8`	`+ */`
	`9`	`+exportconsterrorString=(error:Error\|unknown):string\|undefined=>{`
	`10`	`+if(errorinstanceofError){`
	`11`	`+returnerror.message`
	`12`	`+}elseif(typeoferror==="string"){`
	`13`	`+returnerror\|\|Language.noError`
	`14`	`+}elseif(typeoferror!=="undefined"){`
	`15`	`+console.warn(error)`
	`16`	`+returnLanguage.unexpectedError`
	`17`	`+}else{`
	`18`	`+returnLanguage.noError`
	`19`	`+}`
	`20`	`+}`

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