83 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			83 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach} from 'angular2/test_lib';
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import {coalesce} from 'angular2/src/change_detection/coalesce';
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import {RECORD_TYPE_SELF, ProtoRecord} from 'angular2/src/change_detection/proto_record';
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export function main() {
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  function r(funcOrValue, args, contextIndex, selfIndex, lastInBinding = false) {
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    return new ProtoRecord(99,  "name", funcOrValue, args, null, contextIndex, selfIndex,
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      null, null, null, lastInBinding, false);
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  }
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  describe("change detection - coalesce", () => {
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    it("should work with an empty list", () => {
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      expect(coalesce([])).toEqual([]);
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    });
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    it("should remove non-terminal duplicate records" +
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      " and update the context indices referencing them", () => {
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      var rs = coalesce([
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        r("user",   [], 0, 1),
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        r("first",  [], 1, 2),
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        r("user",   [], 0, 3),
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        r("last",   [], 3, 4)
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      ]);
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      expect(rs).toEqual([
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        r("user",   [], 0, 1),
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        r("first",  [], 1, 2),
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        r("last",   [], 1, 3)
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      ]);
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    });
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    it("should update indices of other records", () => {
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      var rs = coalesce([
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        r("dup",   [],  0, 1),
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        r("dup",   [],  0, 2),
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        r("user",  [],  0, 3),
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        r("first", [3], 3, 4)
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      ]);
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      expect(rs).toEqual([
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        r("dup",   [],  0, 1),
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        r("user",  [],  0, 2),
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        r("first", [2], 2, 3)
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      ]);
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    });
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    it("should remove non-terminal duplicate records" +
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      " and update the args indices referencing them", () => {
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      var rs = coalesce([
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        r("user1",  [],  0, 1),
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        r("user2",  [],  0, 2),
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        r("hi",     [1], 0, 3),
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        r("hi",     [1], 0, 4),
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        r("hi",     [2], 0, 5)
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      ]);
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      expect(rs).toEqual([
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        r("user1",  [],  0, 1),
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        r("user2",  [],  0, 2),
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        r("hi",     [1], 0, 3),
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        r("hi",     [2], 0, 4)
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      ]);
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    });
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    it("should replace duplicate terminal records with" +
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      " self records", () => {
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      var rs = coalesce([
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        r("user",  [],  0, 1, true),
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        r("user",  [],  0, 2, true)
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      ]);
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      expect(rs[1]).toEqual(new ProtoRecord(
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        RECORD_TYPE_SELF, "self", null,
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        [], null, 1, 2,
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        null, null, null,
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        true, false)
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      );
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    });
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  });
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}
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