/*
 * Copyright 2012 ZXing authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#import "ZXQRCodeErrorCorrectionLevel.h"
#import "ZXQRCodeVersion.h"
#import "ZXQRCodeVersionTestCase.h"

@implementation ZXQRCodeVersionTestCase

- (void)testVersionForNumber {
  if ([ZXQRCodeVersion versionForNumber:0]) {
    XCTFail(@"Should have failed");
  }
  for (int i = 1; i <= 40; i++) {
    [self checkVersion:[ZXQRCodeVersion versionForNumber:i] number:i dimension:4*i + 17];
  }
}

- (void)checkVersion:(ZXQRCodeVersion *)version number:(int)number dimension:(int)dimension {
  XCTAssertNotNil(version);
  XCTAssertEqual(number, version.versionNumber);
  XCTAssertNotNil(version.alignmentPatternCenters);
  if (number > 1) {
    XCTAssertTrue(version.alignmentPatternCenters.length > 0);
  }
  XCTAssertEqual(dimension, version.dimensionForVersion);
  XCTAssertNotNil([version ecBlocksForLevel:[ZXQRCodeErrorCorrectionLevel errorCorrectionLevelH]]);
  XCTAssertNotNil([version ecBlocksForLevel:[ZXQRCodeErrorCorrectionLevel errorCorrectionLevelL]]);
  XCTAssertNotNil([version ecBlocksForLevel:[ZXQRCodeErrorCorrectionLevel errorCorrectionLevelM]]);
  XCTAssertNotNil([version ecBlocksForLevel:[ZXQRCodeErrorCorrectionLevel errorCorrectionLevelQ]]);
  XCTAssertNotNil([version buildFunctionPattern]);
}

- (void)testGetProvisionalVersionForDimension {
  for (int i = 1; i <= 40; i++) {
    XCTAssertEqual(i, [ZXQRCodeVersion provisionalVersionForDimension:4*i + 17].versionNumber);
  }
}

- (void)testDecodeVersionInformation {
  // Spot check
  [self doTestVersion:7 mask:0x07C94];
  [self doTestVersion:12 mask:0x0C762];
  [self doTestVersion:17 mask:0x1145D];
  [self doTestVersion:22 mask:0x168C9];
  [self doTestVersion:27 mask:0x1B08E];
  [self doTestVersion:32 mask:0x209D5];
}

- (void)doTestVersion:(int)expectedVersion mask:(int)mask {
  ZXQRCodeVersion *version = [ZXQRCodeVersion decodeVersionInformation:mask];
  XCTAssertNotNil(version);
  XCTAssertEqual(expectedVersion, version.versionNumber);
}

@end