nested实现 #56

i5ting · 2022-10-26T06:41:56Z

https://junit.org/junit5/docs/current/user-guide/#writing-tests-nested

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.util.EmptyStackException;
import java.util.Stack;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;

@DisplayName("A stack")
class TestingAStackDemo {

    Stack<Object> stack;

    @Test
    @DisplayName("is instantiated with new Stack()")
    void isInstantiatedWithNew() {
        new Stack<>();
    }

    @Nested
    @DisplayName("when new")
    class WhenNew {

        @BeforeEach
        void createNewStack() {
            stack = new Stack<>();
        }

        @Test
        @DisplayName("is empty")
        void isEmpty() {
            assertTrue(stack.isEmpty());
        }

        @Test
        @DisplayName("throws EmptyStackException when popped")
        void throwsExceptionWhenPopped() {
            assertThrows(EmptyStackException.class, stack::pop);
        }

        @Test
        @DisplayName("throws EmptyStackException when peeked")
        void throwsExceptionWhenPeeked() {
            assertThrows(EmptyStackException.class, stack::peek);
        }

        @Nested
        @DisplayName("after pushing an element")
        class AfterPushing {

            String anElement = "an element";

            @BeforeEach
            void pushAnElement() {
                stack.push(anElement);
            }

            @Test
            @DisplayName("it is no longer empty")
            void isNotEmpty() {
                assertFalse(stack.isEmpty());
            }

            @Test
            @DisplayName("returns the element when popped and is empty")
            void returnElementWhenPopped() {
                assertEquals(anElement, stack.pop());
                assertTrue(stack.isEmpty());
            }

            @Test
            @DisplayName("returns the element when peeked but remains not empty")
            void returnElementWhenPeeked() {
                assertEquals(anElement, stack.peek());
                assertFalse(stack.isEmpty());
            }
        }
    }
}

The text was updated successfully, but these errors were encountered:

i5ting · 2022-10-26T07:23:53Z

// @ts-nocheck
import * as assert from "uvu/assert";

import { Test, BeforeEach, DisplayName, Nested } from "@ts-junit/core";

@DisplayName("A stack")
export default class TestingAStackDemo {
  stack: object[];

  @Test
  @DisplayName("is instantiated with new Stack()")
  isInstantiatedWithNew(): void {
    console.dir("isInstantiatedWithNew");
    this.stack = new Array();
  }

  @Nested
  @DisplayName("when new")
  a = class WhenNew {
    @BeforeEach
    createNewStack(): void {
      stack = new Stack<>();
    }

    @Test
    @DisplayName("is empty")
    isEmpty(): void {
      assertTrue(stack.isEmpty());
    }

    @Test
    @DisplayName("throws EmptyStackException when popped")
    throwsExceptionWhenPopped(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Test
    @DisplayName("throws EmptyStackException when peeked")
    throwsExceptionWhenPeeked(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Nested
    @DisplayName("after pushing an element")
    b = class AfterPushing {
      anElement: String = "an element";

      @BeforeEach
      pushAnElement(): void {
        stack.push(anElement);
      }

      @Test
      @DisplayName("it is no longer empty")
      isNotEmpty(): void {
        assertFalse(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when popped and is empty")
      returnElementWhenPopped(): void {
        assertEquals(anElement, stack.pop());
        assertTrue(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when peeked but remains not empty")
      returnElementWhenPeeked(): void {
        assertEquals(anElement, stack.peek());
        assertFalse(stack.isEmpty());
      }
    };
  };
}

i5ting · 2022-10-26T07:24:08Z

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
exports.__esModule = true;
var core_1 = require("@ts-junit/core");
var TestingAStackDemo = /** @class */ (function () {
    function TestingAStackDemo() {
        this.a = /** @class */ (function () {
            function WhenNew() {
                this.b = /** @class */ (function () {
                    function AfterPushing() {
                        this.anElement = "an element";
                    }
                    AfterPushing.prototype.pushAnElement = function () {
                        stack.push(anElement);
                    };
                    AfterPushing.prototype.isNotEmpty = function () {
                        assertFalse(stack.isEmpty());
                    };
                    AfterPushing.prototype.returnElementWhenPopped = function () {
                        assertEquals(anElement, stack.pop());
                        assertTrue(stack.isEmpty());
                    };
                    AfterPushing.prototype.returnElementWhenPeeked = function () {
                        assertEquals(anElement, stack.peek());
                        assertFalse(stack.isEmpty());
                    };
                    return AfterPushing;
                }());
            }
            WhenNew.prototype.createNewStack = function () {
                stack = new Stack();
            };
            WhenNew.prototype.isEmpty = function () {
                assertTrue(stack.isEmpty());
            };
            WhenNew.prototype.throwsExceptionWhenPopped = function () {
                assertThrows(EmptyStackException["class"], stack);
            };
            WhenNew.prototype.throwsExceptionWhenPeeked = function () {
                assertThrows(EmptyStackException["class"], stack);
            };
            return WhenNew;
        }());
    }
    TestingAStackDemo.prototype.isInstantiatedWithNew = function () {
        console.dir("isInstantiatedWithNew");
        this.stack = new Array();
    };
    __decorate([
        core_1.Test,
        (0, core_1.DisplayName)("is instantiated with new Stack()")
    ], TestingAStackDemo.prototype, "isInstantiatedWithNew");
    __decorate([
        core_1.Nested,
        (0, core_1.DisplayName)("when new")
    ], TestingAStackDemo.prototype, "a");
    TestingAStackDemo = __decorate([
        (0, core_1.DisplayName)("A stack")
    ], TestingAStackDemo);
    return TestingAStackDemo;
}());
exports["default"] = TestingAStackDemo;

justjavac · 2022-10-26T09:21:17Z

一个思路：see playground

// @ts-nocheck
import * as assert from "uvu/assert";

import { Test, BeforeEach, DisplayName, Nested } from "@ts-junit/core";

export default class TestingAStackDemo {
  stack: object[];

  isInstantiatedWithNew(): void {
    console.dir("isInstantiatedWithNew");
    this.stack = new Array();
  }

  a() {
    @Nested
    class Foo {
      @BeforeEach
      createNewStack(): void {
        stack = new Stack<>();
      }

      @Test
      @DisplayName("[nested]: is empty")
      isEmpty(): void {
        assertTrue(stack.isEmpty());
      }

      @Test
      @DisplayName("[nested]: throws EmptyStackException when popped")
      throwsExceptionWhenPopped(): void {
        assertThrows(EmptyStackException.class, stack);
      }

      @Test
      @DisplayName("[nested]: throws EmptyStackException when peeked")
      throwsExceptionWhenPeeked(): void {
        assertThrows(EmptyStackException.class, stack);
      }
    };
  }
}

i5ting · 2022-10-26T13:16:09Z

@justjavac 妙啊

i5ting · 2022-10-27T00:15:11Z

另一种玩法

  @Nested
  @DisplayName("when new")
  a() {
    class WhenNew {
      @BeforeEach
      createNewStack(): void {
        stack = new Stack<>();
      }

i5ting · 2022-10-27T00:22:57Z

其他方法是类new的时候获取配置信息，而nested方法需要调用一下。if nested method, this.propertyName()

byteHulk · 2022-10-28T11:32:26Z

// @ts-nocheck
import * as assert from "uvu/assert";

import { Test, BeforeEach, DisplayName, Nested } from "@ts-junit/core";

@DisplayName("A stack")
export default class TestingAStackDemo {
  stack: object[];

  @Test
  @DisplayName("is instantiated with new Stack()")
  isInstantiatedWithNew(): void {
    console.dir("isInstantiatedWithNew");
    this.stack = new Array();
  }

  @Nested
  @DisplayName("when new")
  a = class WhenNew {
    @BeforeEach
    createNewStack(): void {
      stack = new Stack<>();
    }

    @Test
    @DisplayName("is empty")
    isEmpty(): void {
      assertTrue(stack.isEmpty());
    }

    @Test
    @DisplayName("throws EmptyStackException when popped")
    throwsExceptionWhenPopped(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Test
    @DisplayName("throws EmptyStackException when peeked")
    throwsExceptionWhenPeeked(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Nested
    @DisplayName("after pushing an element")
    b = class AfterPushing {
      anElement: String = "an element";

      @BeforeEach
      pushAnElement(): void {
        stack.push(anElement);
      }

      @Test
      @DisplayName("it is no longer empty")
      isNotEmpty(): void {
        assertFalse(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when popped and is empty")
      returnElementWhenPopped(): void {
        assertEquals(anElement, stack.pop());
        assertTrue(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when peeked but remains not empty")
      returnElementWhenPeeked(): void {
        assertEquals(anElement, stack.peek());
        assertFalse(stack.isEmpty());
      }
    };
  };
}

nested cache 这样可行吗

{
  clz_name: 'TestingAStackDemo',
  newClz: {
    hook: {},
    cases: {
      isInstantiatedWithNew: {
        desc: 'is instantiated with new Stack()',
        fn: [Function(anonymous)],
      },
    },
    __obj: TestingAStackDemo { stack: [] }
    clz_name: 'WhenNew',
    newClz: {
      hook: {
        'before.each': [Function(anonymous)],
      },
      cases: {
        isEmpty: { desc: 'is empty', fn: [Function(anonymous)] },
        throwsExceptionWhenPopped: {
          desc: 'throws EmptyStackException when popped',
          fn: [Function(anonymous)],
        },
        throwsExceptionWhenPeeked: {
          desc: 'throws EmptyStackException when peeked',
          fn: [Function(anonymous)],
        },
      },
      __obj: WhenNew {}
      clz_name: 'AfterPushing',
      newClz: {
        hook: {
          'before.each': [Function(anonymous)],
        },
        cases: {
          isNotEmpty: {
            desc: 'it is no longer empty',
            fn: [Function(anonymous)],
          },
          returnElementWhenPopped: {
            desc: 'returns the element when popped and is empty',
            fn: [Function(anonymous)],
          },
          returnElementWhenPeeked: {
            desc: 'returns the element when peeked but remains not empty"',
            fn: [Function(anonymous)],
          },
        },
        __obj: AfterPushing {}
      },
    }
  }
}

justjavac · 2022-10-29T01:56:14Z

@byteHulk

@Nested
@DisplayName("when new")
a = class WhenNew {

这样不行。

i5ting · 2022-10-29T06:26:50Z

// @ts-nocheck
import * as assert from "uvu/assert";

import { Test, BeforeEach, DisplayName, Nested } from "@ts-junit/core";

@DisplayName("A stack")
export default class TestingAStackDemo {
  stack: object[];

  @Test
  @DisplayName("is instantiated with new Stack()")
  isInstantiatedWithNew(): void {
    console.dir("isInstantiatedWithNew");
    this.stack = new Array();
  }

  @Nested
  @DisplayName("when new")
  a = class WhenNew {
    @BeforeEach
    createNewStack(): void {
      stack = new Stack<>();
    }

    @Test
    @DisplayName("is empty")
    isEmpty(): void {
      assertTrue(stack.isEmpty());
    }

    @Test
    @DisplayName("throws EmptyStackException when popped")
    throwsExceptionWhenPopped(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Test
    @DisplayName("throws EmptyStackException when peeked")
    throwsExceptionWhenPeeked(): void {
      assertThrows(EmptyStackException.class, stack);
    }

    @Nested
    @DisplayName("after pushing an element")
    b = class AfterPushing {
      anElement: String = "an element";

      @BeforeEach
      pushAnElement(): void {
        stack.push(anElement);
      }

      @Test
      @DisplayName("it is no longer empty")
      isNotEmpty(): void {
        assertFalse(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when popped and is empty")
      returnElementWhenPopped(): void {
        assertEquals(anElement, stack.pop());
        assertTrue(stack.isEmpty());
      }

      @Test
      @DisplayName("returns the element when peeked but remains not empty")
      returnElementWhenPeeked(): void {
        assertEquals(anElement, stack.peek());
        assertFalse(stack.isEmpty());
      }
    };
  };
}

nested cache 这样可行吗

{
  clz_name: 'TestingAStackDemo',
  newClz: {
    hook: {},
    cases: {
      isInstantiatedWithNew: {
        desc: 'is instantiated with new Stack()',
        fn: [Function(anonymous)],
      },
    },
    __obj: TestingAStackDemo { stack: [] }
    clz_name: 'WhenNew',
    newClz: {
      hook: {
        'before.each': [Function(anonymous)],
      },
      cases: {
        isEmpty: { desc: 'is empty', fn: [Function(anonymous)] },
        throwsExceptionWhenPopped: {
          desc: 'throws EmptyStackException when popped',
          fn: [Function(anonymous)],
        },
        throwsExceptionWhenPeeked: {
          desc: 'throws EmptyStackException when peeked',
          fn: [Function(anonymous)],
        },
      },
      __obj: WhenNew {}
      clz_name: 'AfterPushing',
      newClz: {
        hook: {
          'before.each': [Function(anonymous)],
        },
        cases: {
          isNotEmpty: {
            desc: 'it is no longer empty',
            fn: [Function(anonymous)],
          },
          returnElementWhenPopped: {
            desc: 'returns the element when popped and is empty',
            fn: [Function(anonymous)],
          },
          returnElementWhenPeeked: {
            desc: 'returns the element when peeked but remains not empty"',
            fn: [Function(anonymous)],
          },
        },
        __obj: AfterPushing {}
      },
    }
  }
}

目前写法是这样的，我和jjc确定可行的方案，我这边在实现呢。

// @ts-nocheck
import * as assert from "uvu/assert";

import { Test, BeforeEach, DisplayName, Nested } from "@ts-junit/core";

@DisplayName("A stack")
export default class TestingAStackDemo {
  stack: object[];

  @Test
  @DisplayName("is instantiated with new Stack()")
  isInstantiatedWithNew(): void {
    console.dir("isInstantiatedWithNew");
    this.stack = new Array();
  }

  @Nested
  @DisplayName("when new")
  a() {
    class WhenNew {
      @BeforeEach
      createNewStack(): void {
        stack = new Stack<>();
      }

      @Test
      @DisplayName("is empty")
      isEmpty(): void {
        assertTrue(stack.isEmpty());
      }

      @Test
      @DisplayName("throws EmptyStackException when popped")
      throwsExceptionWhenPopped(): void {
        assertThrows(EmptyStackException.class, stack);
      }

      @Test
      @DisplayName("throws EmptyStackException when peeked")
      throwsExceptionWhenPeeked(): void {
        assertThrows(EmptyStackException.class, stack);
      }

      @Nested
      @DisplayName("after pushing an element")
      b() {
        class AfterPushing {
          anElement: String = "an element";

          @BeforeEach
          pushAnElement(): void {
            stack.push(anElement);
          }

          @Test
          @DisplayName("it is no longer empty")
          isNotEmpty(): void {
            assertFalse(stack.isEmpty());
          }

          @Test
          @DisplayName("returns the element when popped and is empty")
          returnElementWhenPopped(): void {
            assertEquals(anElement, stack.pop());
            assertTrue(stack.isEmpty());
          }

          @Test
          @DisplayName("returns the element when peeked but remains not empty")
          returnElementWhenPeeked(): void {
            assertEquals(anElement, stack.peek());
            assertFalse(stack.isEmpty());
          }
        }
      }
    }
  }
}

i5ting · 2022-10-29T06:27:54Z

1）a 里定义class，但不能return

2）b是a里的class，也就是nested可以无限嵌套。

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nested实现 #56

nested实现 #56

i5ting commented Oct 26, 2022

i5ting commented Oct 26, 2022

i5ting commented Oct 26, 2022

justjavac commented Oct 26, 2022

i5ting commented Oct 26, 2022

i5ting commented Oct 27, 2022 •

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i5ting commented Oct 27, 2022

byteHulk commented Oct 28, 2022

justjavac commented Oct 29, 2022 •

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i5ting commented Oct 29, 2022

i5ting commented Oct 29, 2022

nested实现 #56

nested实现 #56

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i5ting commented Oct 26, 2022

i5ting commented Oct 26, 2022

i5ting commented Oct 26, 2022

justjavac commented Oct 26, 2022

i5ting commented Oct 26, 2022

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