First version of the iphone client that actually works, for at least a subset

[zxing.git] / cpp / core / tests / src / common / BlackPointEstimatorTest.cpp

diff --git a/cpp/core/tests/src/common/BlackPointEstimatorTest.cpp b/cpp/core/tests/src/common/BlackPointEstimatorTest.cpp
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+++ b/cpp/core/tests/src/common/BlackPointEstimatorTest.cpp
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+/*
+ *  BlackPointEstimatorTest.cpp
+ *  zxing
+ *
+ *  Created by Christian Brunschen on 12/05/2008.
+ *  Copyright 2008 Google UK. All rights reserved.
+ *
+ * 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.
+ */
+
+#include "BlackPointEstimatorTest.h"
+#include "IllegalArgumentException.h"
+#include <valarray>
+
+namespace common {
+  
+  CPPUNIT_TEST_SUITE_REGISTRATION(BlackPointEstimatorTest);
+
+  void BlackPointEstimatorTest::testBasic() {
+    int histogramRaw[] = 
+      { 0, 0, 11, 43, 37, 18, 3, 1, 0, 0, 13, 36, 24, 0, 11, 2 };
+    valarray<int> histogram(histogramRaw, 16);
+    size_t point = BlackPointEstimator::estimate(histogram);
+    CPPUNIT_ASSERT_EQUAL((size_t)8, point);
+  }
+  
+  void BlackPointEstimatorTest::testTooLittleRange() {
+    try {
+      int histogramRaw[] = 
+        { 0, 0, 0, 0, 0, 0, 1, 43, 48, 18, 3, 1, 0, 0, 0, 0 };
+      valarray<int> histogram(histogramRaw, 16);
+      BlackPointEstimator::estimate(histogram);
+      CPPUNIT_FAIL("Should have thrown an exception");
+    } catch (IllegalArgumentException* ie) {
+      // good
+      delete ie;
+    }
+  }
+}