Repository: eslint/eslint
File: tests/lib/rule-tester/rule-tester.js (JavaScript)

Code before:
                ruleTester.run("suggestions-missing-hasSuggestions-property", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateDescriptions, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", output: "5", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename 'foo' to 'bar'' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should fail if a rule produces two suggestions with the same messageId without data", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-missing-hasSuggestions-property", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateMessageIdsNoData, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", output: "5", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename identifier' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should fail if a rule produces two suggestions with the same messageId without data", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-missing-hasSuggestions-property", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateMessageIdsWithData, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", output: "5", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename identifier 'foo' to 'bar'' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should throw an error if a rule that doesn't have `meta.hasSuggestions` enabled produces suggestions", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-missing-hasSuggestions-property", require("../../fixtures/testers/rule-tester/suggestions").withoutHasSuggestionsProperty, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", output: "5", errors: 1 }
                    ]
                });
            }, "Rules with suggestions must set the `meta.hasSuggestions` property to `true`");
        });
    });

    describe("deprecations", () => {
        let processStub;
        const ruleWithNoSchema = {
            meta: {
                type: "suggestion"
            },
            create(context) {
                return {

Review comment (suggestion):
```suggestion
                        { code: "var foo = bar;", errors: 1 }
```

Code after:
                ruleTester.run("suggestions-with-duplicate-descriptions", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateDescriptions, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename 'foo' to 'bar'' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should fail if a rule produces two suggestions with the same messageId without data", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-with-duplicate-messageids-no-data", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateMessageIdsNoData, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename identifier' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should fail if a rule produces two suggestions with the same messageId with data", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-with-duplicate-messageids-with-data", require("../../fixtures/testers/rule-tester/suggestions").withDuplicateMessageIdsWithData, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", errors: 1 }
                    ]
                });
            }, "Suggestion message 'Rename identifier 'foo' to 'bar'' reported from suggestion 1 was previously reported by suggestion 0. Suggestion messages should be unique within an error.");
        });

        it("should throw an error if a rule that doesn't have `meta.hasSuggestions` enabled produces suggestions", () => {
            assert.throws(() => {
                ruleTester.run("suggestions-missing-hasSuggestions-property", require("../../fixtures/testers/rule-tester/suggestions").withoutHasSuggestionsProperty, {
                    valid: [],
                    invalid: [
                        { code: "var foo = bar;", output: "5", errors: 1 }
                    ]
                });
            }, "Rules with suggestions must set the `meta.hasSuggestions` property to `true`.");
        });
    });

    describe("deprecations", () => {
        let processStub;
        const ruleWithNoSchema = {
            meta: {
                type: "suggestion"
            },
            create(context) {
                return {