Error.spec.js ➔ ... ➔ ??? - Code Metrics - Inspection of "Added Docma tool configuration file and updated Tr..." - EgaLabs/node-ejsception - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 54b84a...25fb7a )

by Esaú

created 2017-06-13 08:22 UTC

Error.spec.js ➔ ... ➔ ??? A

↳ Parent: Error.spec.js ➔ ???

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	3
Ratio	100 %

Importance

Changes	16
Bugs	0	Features	0

Metric	Value
cc	1
c	16
b	0
f	0
nc	1
dl	3
loc	3
rs	10
nop	0

// spec/Error.spec.js
"use strict";


// :: DEPENDENCIES

// load native dependencies
const path = require("path");

// load local dependencies
const root      = path.dirname(__dirname);
const Throwable = require(path.join(root, "Throwable.js"));
const Error2    = require(path.join(root, "Error.js"));

// :: TESTING

// test the Error 'class'
describe("Error", () => {

    // :: INHERITED PROTOTYPE

    it("should inherit from 'Object'", () => {
        expect(new Error2()).toEqual(jasmine.any(Object));
    });

    it("should inherit from 'Throwable'", () => {
        expect(new Error2()).toEqual(jasmine.any(Throwable));
    });

    it("should have a prototype method named 'toString()'", () => {
        expect(Error2.prototype).toHaveMethod("toString");
    });

    it("should have a prototype method named 'native()'", () => {
        expect(Error2.prototype).toHaveMethod("native");
    });

    it("should have a prototype property string named 'name'", () => {
        expect(Error2.prototype).toHaveString("name");
    });

    it("should have a prototype property string named 'message'", () => {
        expect(Error2.prototype).toHaveString("message");
    });

    it("should have a prototype property string named 'code'", () => {
        expect(Error2.prototype).toHaveMember("code");
    });

    // :: EXTENDED PROTOTYPE

    // :: PROTOTYPE VALUES

    it("should have the 'class' name in the prototype property named 'name'", () => {
        expect(Error2.prototype.name).toEqual("Error");
    });

    it("should have a dummy default value as message", () => {
        expect(Error2.prototype.message).toEqual("thrown");
    });

    it("should have a null default value as code", () => {
        expect(Error2.prototype.code).toBeNull();
    });

    // :: CONSTRUCTOR

    it("should instantiate without parameters", () => {
        let arg1, arg2, arg3, test;
        test = (() => new Error2(arg1, arg2, arg3));
        for (let i = 0; i < 2; i += 1) {
            for (let j = 0; j < 2; j += 1) {
                for (let e = 0; e < 2; e += 1) {
                    arg1 = (i % 2 === 0 ? undefined : null);
                    arg2 = (j % 2 === 0 ? undefined : null);
                    arg3 = (e % 2 === 0 ? undefined : null);
                    expect(test).not.toThrowError("parameter 'name' must be a 'string'");
                    expect(test).not.toThrowError("parameter 'message' must be a 'string'");
                    expect(test).not.toThrowError("parameter 'code' must be a 'number'");
                }
            }
        }
        test = (() => new Error2());
        expect(test).not.toThrowError("parameter 'name' must be a 'string'");
        expect(test).not.toThrowError("parameter 'message' must be a 'string'");
        expect(test).not.toThrowError("parameter 'code' must be a 'number'");
    });

    it("should instantiate with parameters", () => {
        let arg1, arg2, arg3, test1, test2, test3;
        const args1 = [undefined, null, "Error"];
        const args2 = [undefined, null, "thrown"];
        const args3 = [undefined, null, Math.round(Math.random() * 0xFFFFFFFF)];
        test1       = (() => new Error2(arg1));
        test2       = (() => new Error2(arg1, arg2));
        test3       = (() => new Error2(arg1, arg2, arg3));
        for (let i = 0; i < args1.length; i += 1) {
            arg1 = args1[i];
            for (let j = 0; j < args2.length; j += 1) {
                arg2 = args2[j];
                for (let e = 0; e < args3.length; e += 1) {
                    arg3 = args3[e];
                    expect(test3).not.toThrowError("parameter 'name' must be a 'string'");
                    expect(test3).not.toThrowError("parameter 'message' must be a 'string'");
                    expect(test3).not.toThrowError("parameter 'code' must be a 'number'");
                }
                expect(test2).not.toThrowError("parameter 'name' must be a 'string'");
                expect(test2).not.toThrowError("parameter 'message' must be a 'string'");
                expect(test2).not.toThrowError("parameter 'code' must be a 'number'");
            }
            expect(test1).not.toThrowError("parameter 'name' must be a 'string'");
            expect(test1).not.toThrowError("parameter 'message' must be a 'string'");
            expect(test1).not.toThrowError("parameter 'code' must be a 'number'");
        }
    });

    it("should throw an Error if 'name', 'message' or 'code' are invalid parameters", () => {
        let arg1, arg2, arg3, test31, test32, test33, test21, test22, test11;
        const noStr = [{}, true, false, 42, 3.1416, -42, -3.1416, () => null];
        const noNmb = [{}, true, false, "", "qwerty", () => null];
        test33      = (() => new Error2(arg1, arg2, arg3));
        test32      = (() => new Error2(null, arg2, arg3));
        test31      = (() => new Error2(null, null, arg3));
        test22      = (() => new Error2(arg1, arg2));
        test21      = (() => new Error2(null, arg2));
        test11      = (() => new Error2(arg1));
        if (typeof Symbol === "function") {
            noStr.push(Symbol("symbol"));
            noNmb.push(Symbol("symbol"));
        }
        for (let i = 0; i < noStr.length; i += 1) {
            arg1 = noStr[i];
            for (let j = 0; j < noStr.length; j += 1) {
                arg2 = noStr[j];
                for (let e = 0; e < noNmb.length; e += 1) {
                    arg3 = noNmb[e];
                    expect(test33).toThrowError("parameter 'name' must be a 'string'");
                    expect(test32).toThrowError("parameter 'message' must be a 'string'");
                    expect(test31).toThrowError("parameter 'code' must be a 'number'");
                }
                expect(test22).toThrowError("parameter 'name' must be a 'string'");
                expect(test21).toThrowError("parameter 'message' must be a 'string'");
            }
            expect(test11).toThrowError("parameter 'name' must be a 'string'");
        }
    });

    // :: MEMBER PROPERTIES

    it("should have all correct properties once instantiated", () => {
        const name    = "qwerty";
        const message = "asdf";
        const code    = Math.round(Math.random() * 0xFFFFFFFF);
        for (let i = 0; i < 2; i += 1) {
            const arg1    = (i % 2 === 0 ? name : null);
            const source1 = new Error2(arg1);
            for (let j = 0; j < 2; j += 1) {
                const arg2    = (j % 2 === 0 ? message : null);
                const source2 = new Error2(arg1, arg2);
                for (let e = 0; e < 2; e += 1) {
                    const arg3    = (e % 2 === 0 ? code : null);
                    const source3 = new Error2(arg1, arg2, arg3);
                    if (i % 2 === 0) {
                        expect(source1.name).toEqual(name);
                        expect(source2.name).toEqual(name);
                        expect(source3.name).toEqual(name);
                    } else {
                        expect(source1.name).toEqual(Error2.prototype.name);
                        expect(source2.name).toEqual(Error2.prototype.name);
                        expect(source3.name).toEqual(Error2.prototype.name);
                    }
                    if (j % 2 === 0) {
                        expect(source2.message).toEqual(message);
                        expect(source3.message).toEqual(message);
                    } else {
                        expect(source2.message).toEqual(Error2.prototype.message);
                        expect(source3.message).toEqual(Error2.prototype.message);
                    }
                    if (e % 2 === 0) {
                        expect(source3.code).toEqual(code);
                    } else {
                        expect(source3.code).toBeNull();
                    }
                    expect(source1.message).toEqual(Error2.prototype.message);
                    expect(source1.code).toBeNull();
                    expect(source2.code).toBeNull();
                }
            }
        }
    });

    // :: MEMBER METHODS

    const name    = "qwerty";
    const message = "asdf";
    const code    = Math.round(Math.random() * 0xFFFFFFFF);

    it("#toString()", () => {
        // test non-empty
        for (let i = 0; i < 2; i += 1) {
            const arg1    = (i % 2 === 0 ? name : null);
            const source1 = new Error2(arg1);
            for (let j = 0; j < 2; j += 1) {
                const arg2    = (j % 2 === 0 ? message : null);
                const source2 = new Error2(arg1, arg2);
                for (let e = 0; e < 2; e += 1) {
                    const arg3    = (e % 2 === 0 ? code : null);
                    const source3 = new Error2(arg1, arg2, arg3);
                    const str1    = source1.toString();
                    const str2    = source2.toString();
                    const str3    = source3.toString();
                    let exp1, exp2, exp3;
                    if (i % 2 === 0) {
                        exp1 = name + ": " + Error2.prototype.message + '.';
                        exp2 = exp3 = name;
                    } else {
                        exp1 = Error2.prototype.name + ": " + Error2.prototype.message + '.';
                        exp2 = exp3 = Error2.prototype.name;
                    }
                    if (e % 2 === 0) {
                        exp3 += " (0x" + code.toString(16) + ')';
                    }
                    if (j % 2 === 0) {
                        exp2 += ": " + message + '.';
                        exp3 += ": " + message + '.';
                    } else {
                        exp2 += ": " + Error2.prototype.message + '.';
                        exp3 += ": " + Error2.prototype.message + '.';
                    }
                    expect(str1).toEqual(exp1);
                    expect(str2).toEqual(exp2);
                    expect(str3).toEqual(exp3);
                }
            }
        }
    });

    it("#native()", () => {
        // test non-empty
        for (let i = 0; i < 2; i += 1) {
            const arg1    = (i % 2 === 0 ? name : null);
            const source1 = new Error2(arg1);
            for (let j = 0; j < 2; j += 1) {
                const arg2    = (j % 2 === 0 ? message : null);
                const source2 = new Error2(arg1, arg2);
                for (let e = 0; e < 2; e += 1) {
                    const arg3    = (e % 2 === 0 ? code : null);
                    const source3 = new Error2(arg1, arg2, arg3);
                    const err1    = source1.native();
                    const err2    = source2.native();
                    const err3    = source3.native();
                    const exp1    = Error2.prototype.message;
                    const exp2    = (j % 2 === 0 ? message : Error2.prototype.message);
                    const exp3    = exp2;
                    expect(err1).toEqual(new Error(exp1));
                    expect(err2).toEqual(new Error(exp2));
                    expect(err3).toEqual(new Error(exp3));
                }
            }
        }
    });

});

1		// spec/Error.spec.js
2	View Code Duplication	"use strict";
		0 ignored issues – show Duplication introduced 2017-06-10 17:35 UTC by Report Bug Copy Issue Report This code seems to be duplicated in your project. Loading history...
3
4		// :: DEPENDENCIES
5
6		// load native dependencies
7		const path = require("path");
8
9		// load local dependencies
10		const root = path.dirname(__dirname);
11		const Throwable = require(path.join(root, "Throwable.js"));
12		const Error2 = require(path.join(root, "Error.js"));
13
14		// :: TESTING
15
16		// test the Error 'class'
17		describe("Error", () => {
18
19		// :: INHERITED PROTOTYPE
20
21		it("should inherit from 'Object'", () => {
22		expect(new Error2()).toEqual(jasmine.any(Object));
23		});
24
25		it("should inherit from 'Throwable'", () => {
26		expect(new Error2()).toEqual(jasmine.any(Throwable));
27		});
28
29		it("should have a prototype method named 'toString()'", () => {
30		expect(Error2.prototype).toHaveMethod("toString");
31		});
32
33		it("should have a prototype method named 'native()'", () => {
34		expect(Error2.prototype).toHaveMethod("native");
35		});
36
37		it("should have a prototype property string named 'name'", () => {
38		expect(Error2.prototype).toHaveString("name");
39		});
40
41		it("should have a prototype property string named 'message'", () => {
42		expect(Error2.prototype).toHaveString("message");
43		});
44
45		it("should have a prototype property string named 'code'", () => {
46		expect(Error2.prototype).toHaveMember("code");
47		});
48
49		// :: EXTENDED PROTOTYPE
50
51		// :: PROTOTYPE VALUES
52
53		it("should have the 'class' name in the prototype property named 'name'", () => {
54		expect(Error2.prototype.name).toEqual("Error");
55		});
56
57		it("should have a dummy default value as message", () => {
58		expect(Error2.prototype.message).toEqual("thrown");
59		});
60
61		it("should have a null default value as code", () => {
62		expect(Error2.prototype.code).toBeNull();
63		});
64
65		// :: CONSTRUCTOR
66
67		it("should instantiate without parameters", () => {
68		let arg1, arg2, arg3, test;
69		test = (() => new Error2(arg1, arg2, arg3));
70		for (let i = 0; i < 2; i += 1) {
71		for (let j = 0; j < 2; j += 1) {
72		for (let e = 0; e < 2; e += 1) {
73		arg1 = (i % 2 === 0 ? undefined : null);
74		arg2 = (j % 2 === 0 ? undefined : null);
75		arg3 = (e % 2 === 0 ? undefined : null);
76		expect(test).not.toThrowError("parameter 'name' must be a 'string'");
77		expect(test).not.toThrowError("parameter 'message' must be a 'string'");
78		expect(test).not.toThrowError("parameter 'code' must be a 'number'");
79		}
80		}
81		}
82		test = (() => new Error2());
83		expect(test).not.toThrowError("parameter 'name' must be a 'string'");
84		expect(test).not.toThrowError("parameter 'message' must be a 'string'");
85		expect(test).not.toThrowError("parameter 'code' must be a 'number'");
86		});
87
88		it("should instantiate with parameters", () => {
89		let arg1, arg2, arg3, test1, test2, test3;
90		const args1 = [undefined, null, "Error"];
91		const args2 = [undefined, null, "thrown"];
92		const args3 = [undefined, null, Math.round(Math.random() * 0xFFFFFFFF)];
93		test1 = (() => new Error2(arg1));
94		test2 = (() => new Error2(arg1, arg2));
95		test3 = (() => new Error2(arg1, arg2, arg3));
96		for (let i = 0; i < args1.length; i += 1) {
97		arg1 = args1[i];
98		for (let j = 0; j < args2.length; j += 1) {
99		arg2 = args2[j];
100		for (let e = 0; e < args3.length; e += 1) {
101		arg3 = args3[e];
102		expect(test3).not.toThrowError("parameter 'name' must be a 'string'");
103		expect(test3).not.toThrowError("parameter 'message' must be a 'string'");
104		expect(test3).not.toThrowError("parameter 'code' must be a 'number'");
105		}
106		expect(test2).not.toThrowError("parameter 'name' must be a 'string'");
107		expect(test2).not.toThrowError("parameter 'message' must be a 'string'");
108		expect(test2).not.toThrowError("parameter 'code' must be a 'number'");
109		}
110		expect(test1).not.toThrowError("parameter 'name' must be a 'string'");
111		expect(test1).not.toThrowError("parameter 'message' must be a 'string'");
112		expect(test1).not.toThrowError("parameter 'code' must be a 'number'");
113		}
114		});
115
116		it("should throw an Error if 'name', 'message' or 'code' are invalid parameters", () => {
117		let arg1, arg2, arg3, test31, test32, test33, test21, test22, test11;
118		const noStr = [{}, true, false, 42, 3.1416, -42, -3.1416, () => null];
119		const noNmb = [{}, true, false, "", "qwerty", () => null];
120		test33 = (() => new Error2(arg1, arg2, arg3));
121		test32 = (() => new Error2(null, arg2, arg3));
122		test31 = (() => new Error2(null, null, arg3));
123		test22 = (() => new Error2(arg1, arg2));
124		test21 = (() => new Error2(null, arg2));
125		test11 = (() => new Error2(arg1));
126		if (typeof Symbol === "function") {
127		noStr.push(Symbol("symbol"));
128		noNmb.push(Symbol("symbol"));
129		}
130		for (let i = 0; i < noStr.length; i += 1) {
131		arg1 = noStr[i];
132		for (let j = 0; j < noStr.length; j += 1) {
133		arg2 = noStr[j];
134		for (let e = 0; e < noNmb.length; e += 1) {
135		arg3 = noNmb[e];
136		expect(test33).toThrowError("parameter 'name' must be a 'string'");
137		expect(test32).toThrowError("parameter 'message' must be a 'string'");
138		expect(test31).toThrowError("parameter 'code' must be a 'number'");
139		}
140		expect(test22).toThrowError("parameter 'name' must be a 'string'");
141		expect(test21).toThrowError("parameter 'message' must be a 'string'");
142		}
143		expect(test11).toThrowError("parameter 'name' must be a 'string'");
144		}
145		});
146
147		// :: MEMBER PROPERTIES
148
149		it("should have all correct properties once instantiated", () => {
150		const name = "qwerty";
151		const message = "asdf";
152		const code = Math.round(Math.random() * 0xFFFFFFFF);
153		for (let i = 0; i < 2; i += 1) {
154		const arg1 = (i % 2 === 0 ? name : null);
155		const source1 = new Error2(arg1);
156		for (let j = 0; j < 2; j += 1) {
157		const arg2 = (j % 2 === 0 ? message : null);
158		const source2 = new Error2(arg1, arg2);
159		for (let e = 0; e < 2; e += 1) {
160		const arg3 = (e % 2 === 0 ? code : null);
161		const source3 = new Error2(arg1, arg2, arg3);
162		if (i % 2 === 0) {
163		expect(source1.name).toEqual(name);
164		expect(source2.name).toEqual(name);
165		expect(source3.name).toEqual(name);
166		} else {
167		expect(source1.name).toEqual(Error2.prototype.name);
168		expect(source2.name).toEqual(Error2.prototype.name);
169		expect(source3.name).toEqual(Error2.prototype.name);
170		}
171		if (j % 2 === 0) {
172		expect(source2.message).toEqual(message);
173		expect(source3.message).toEqual(message);
174		} else {
175		expect(source2.message).toEqual(Error2.prototype.message);
176		expect(source3.message).toEqual(Error2.prototype.message);
177		}
178		if (e % 2 === 0) {
179		expect(source3.code).toEqual(code);
180		} else {
181		expect(source3.code).toBeNull();
182		}
183		expect(source1.message).toEqual(Error2.prototype.message);
184		expect(source1.code).toBeNull();
185		expect(source2.code).toBeNull();
186		}
187		}
188		}
189		});
190
191		// :: MEMBER METHODS
192
193		const name = "qwerty";
194		const message = "asdf";
195		const code = Math.round(Math.random() * 0xFFFFFFFF);
196
197		it("#toString()", () => {
198		// test non-empty
199		for (let i = 0; i < 2; i += 1) {
200		const arg1 = (i % 2 === 0 ? name : null);
201		const source1 = new Error2(arg1);
202		for (let j = 0; j < 2; j += 1) {
203		const arg2 = (j % 2 === 0 ? message : null);
204		const source2 = new Error2(arg1, arg2);
205		for (let e = 0; e < 2; e += 1) {
206		const arg3 = (e % 2 === 0 ? code : null);
207		const source3 = new Error2(arg1, arg2, arg3);
208		const str1 = source1.toString();
209		const str2 = source2.toString();
210		const str3 = source3.toString();
211		let exp1, exp2, exp3;
212		if (i % 2 === 0) {
213		exp1 = name + ": " + Error2.prototype.message + '.';
214		exp2 = exp3 = name;
215		} else {
216		exp1 = Error2.prototype.name + ": " + Error2.prototype.message + '.';
217		exp2 = exp3 = Error2.prototype.name;
218		}
219		if (e % 2 === 0) {
220		exp3 += " (0x" + code.toString(16) + ')';
221		}
222		if (j % 2 === 0) {
223		exp2 += ": " + message + '.';
224		exp3 += ": " + message + '.';
225		} else {
226		exp2 += ": " + Error2.prototype.message + '.';
227		exp3 += ": " + Error2.prototype.message + '.';
228		}
229		expect(str1).toEqual(exp1);
230		expect(str2).toEqual(exp2);
231		expect(str3).toEqual(exp3);
232		}
233		}
234		}
235		});
236
237		it("#native()", () => {
238		// test non-empty
239		for (let i = 0; i < 2; i += 1) {
240		const arg1 = (i % 2 === 0 ? name : null);
241		const source1 = new Error2(arg1);
242		for (let j = 0; j < 2; j += 1) {
243		const arg2 = (j % 2 === 0 ? message : null);
244		const source2 = new Error2(arg1, arg2);
245		for (let e = 0; e < 2; e += 1) {
246		const arg3 = (e % 2 === 0 ? code : null);
247		const source3 = new Error2(arg1, arg2, arg3);
248		const err1 = source1.native();
249		const err2 = source2.native();
250		const err3 = source3.native();
251		const exp1 = Error2.prototype.message;
252		const exp2 = (j % 2 === 0 ? message : Error2.prototype.message);
253		const exp3 = exp2;
254		expect(err1).toEqual(new Error(exp1));
255		expect(err2).toEqual(new Error(exp2));
256		expect(err3).toEqual(new Error(exp3));
257		}
258		}
259		}
260		});
261
262		});

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