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Generalize API of Changeset model and add tests
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Martin Richter
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Feb 5, 2015
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,102 @@ | ||
| // | ||
| // ChangesetTests.m | ||
| // ObjectiveGoal | ||
| // | ||
| // Created by Martin Richter on 05/02/15. | ||
| // Copyright (c) 2015 Martin Richter. All rights reserved. | ||
| // | ||
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| #import <XCTest/XCTest.h> | ||
| #import <UIKit/UITableView.h> | ||
| #import "Changeset.h" | ||
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| @interface ChangesetTests : XCTestCase | ||
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| @end | ||
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| @implementation ChangesetTests | ||
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| - (void)testChangesetBetweenEmptyArrays | ||
| { | ||
| Changeset *changeset = [Changeset changesetOfIndexPathsFromItems:@[] toItems:@[]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 0); | ||
| XCTAssertEqual(changeset.insertions.count, 0); | ||
| } | ||
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| - (void)testChangesetFromEmptyToNonEmptyArray | ||
| { | ||
| Changeset *changeset = [Changeset changesetOfIndexPathsFromItems:@[] toItems:@[[NSObject new]]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 0); | ||
| XCTAssertEqual(changeset.insertions.count, 1); | ||
| XCTAssertEqual(changeset.insertions.firstObject, [NSIndexPath indexPathForRow:0 inSection:0]); | ||
| } | ||
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| - (void)testChangesetFromNonEmptyToEmptyArray | ||
| { | ||
| Changeset *changeset = [Changeset changesetOfIndexPathsFromItems:@[[NSObject new]] toItems:@[]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 1); | ||
| XCTAssertEqual(changeset.deletions.firstObject, [NSIndexPath indexPathForRow:0 inSection:0]); | ||
| XCTAssertEqual(changeset.insertions.count, 0); | ||
| } | ||
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| - (void)testChangesetWithInsertedItems | ||
| { | ||
| NSObject *firstItem = [NSObject new]; | ||
| NSObject *secondItem = [NSObject new]; | ||
| NSObject *firstInsertedItem = [NSObject new]; | ||
| NSObject *secondInsertedItem = [NSObject new]; | ||
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| Changeset *changeset = [Changeset | ||
| changesetOfIndexPathsFromItems:@[firstItem, secondItem] | ||
| toItems:@[firstItem, firstInsertedItem, secondItem, secondInsertedItem]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 0); | ||
| XCTAssertEqual(changeset.insertions.count, 2); | ||
| XCTAssertEqual(changeset.insertions[0], [NSIndexPath indexPathForRow:1 inSection:0]); | ||
| XCTAssertEqual(changeset.insertions[1], [NSIndexPath indexPathForRow:3 inSection:0]); | ||
| } | ||
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| - (void)testChangesetWithDeletedItems | ||
| { | ||
| NSObject *firstItem = [NSObject new]; | ||
| NSObject *secondItem = [NSObject new]; | ||
| NSObject *thirdItem = [NSObject new]; | ||
| NSObject *fourthItem = [NSObject new]; | ||
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| Changeset *changeset = [Changeset | ||
| changesetOfIndexPathsFromItems:@[firstItem, secondItem, thirdItem, fourthItem] | ||
| toItems:@[firstItem, thirdItem]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 2); | ||
| XCTAssertEqual(changeset.deletions[0], [NSIndexPath indexPathForRow:1 inSection:0]); | ||
| XCTAssertEqual(changeset.deletions[1], [NSIndexPath indexPathForRow:3 inSection:0]); | ||
| XCTAssertEqual(changeset.insertions.count, 0); | ||
| } | ||
|
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| - (void)testChangesetWithDeletedAndInsertedItems | ||
| { | ||
| NSObject *firstItem = [NSObject new]; | ||
| NSObject *secondItem = [NSObject new]; | ||
| NSObject *thirdItem = [NSObject new]; | ||
| NSObject *fourthItem = [NSObject new]; | ||
|
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| NSObject *firstInsertedItem = [NSObject new]; | ||
| NSObject *secondInsertedItem = [NSObject new]; | ||
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| Changeset *changeset = [Changeset | ||
| changesetOfIndexPathsFromItems:@[firstItem, secondItem, thirdItem, fourthItem] | ||
| toItems:@[firstInsertedItem, firstItem, secondInsertedItem, thirdItem]]; | ||
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| XCTAssertEqual(changeset.deletions.count, 2); | ||
| XCTAssertEqual(changeset.deletions[0], [NSIndexPath indexPathForRow:1 inSection:0]); | ||
| XCTAssertEqual(changeset.deletions[1], [NSIndexPath indexPathForRow:3 inSection:0]); | ||
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| XCTAssertEqual(changeset.insertions.count, 2); | ||
| XCTAssertEqual(changeset.insertions[0], [NSIndexPath indexPathForRow:0 inSection:0]); | ||
| XCTAssertEqual(changeset.insertions[1], [NSIndexPath indexPathForRow:2 inSection:0]); | ||
| } | ||
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| @end |