add ceiling tests

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1901178 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/poi/src/test/java/org/apache/poi/ss/formula/functions/TestCeiling.java b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestCeiling.java
new file mode 100644 (file)
index 0000000..5de2c1a
--- /dev/null
+++ b/poi/src/test/java/org/apache/poi/ss/formula/functions/TestCeiling.java
@@ -0,0 +1,78 @@
+/* ====================================================================
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You 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.
+==================================================================== */
+
+package org.apache.poi.ss.formula.functions;
+
+import org.apache.poi.hssf.usermodel.HSSFCell;
+import org.apache.poi.hssf.usermodel.HSSFFormulaEvaluator;
+import org.apache.poi.hssf.usermodel.HSSFRow;
+import org.apache.poi.hssf.usermodel.HSSFSheet;
+import org.apache.poi.hssf.usermodel.HSSFWorkbook;
+import org.apache.poi.ss.formula.FormulaParseException;
+import org.apache.poi.ss.usermodel.FormulaError;
+import org.junit.jupiter.api.Test;
+
+import java.io.IOException;
+
+import static org.apache.poi.ss.util.Utils.assertDouble;
+import static org.apache.poi.ss.util.Utils.assertError;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+/**
+ * Tests for Ceiling function
+ */
+final class TestCeiling {
+
+    //https://support.microsoft.com/en-us/office/ceiling-function-0a5cd7c8-0720-4f0a-bd2c-c943e510899f
+    @Test
+    void testMicrosoftExamples() throws IOException {
+        try (HSSFWorkbook wb = new HSSFWorkbook()) {
+            HSSFSheet sheet = wb.createSheet();
+            HSSFRow row = sheet.createRow(0);
+            HSSFCell cell = row.createCell(0);
+            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+            assertDouble(fe, cell, "CEILING(2.5, 1)", 3.0, 0.00000000000001);
+            assertDouble(fe, cell, "CEILING(-2.5, -2)", -4.0, 0.00000000000001);
+            assertDouble(fe, cell, "CEILING(-2.5, 2)", -2.0, 0.00000000000001);
+            assertDouble(fe, cell, "CEILING(1.5, 0.1)", 1.5, 0.00000000000001);
+            assertDouble(fe, cell, "CEILING(0.234, 0.01)", 0.24, 0.00000000000001);
+        }
+    }
+
+    @Test
+    void testInvalid() throws IOException {
+        try (HSSFWorkbook wb = new HSSFWorkbook()) {
+            HSSFSheet sheet = wb.createSheet();
+            HSSFRow row = sheet.createRow(0);
+            HSSFCell cell = row.createCell(0);
+            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+            assertThrows(FormulaParseException.class, () ->
+                assertError(fe, cell, "CEILING()", FormulaError.VALUE));
+        }
+    }
+
+    @Test
+    void testInvalidNum() throws IOException {
+        try (HSSFWorkbook wb = new HSSFWorkbook()) {
+            HSSFSheet sheet = wb.createSheet();
+            HSSFRow row = sheet.createRow(0);
+            HSSFCell cell = row.createCell(0);
+            HSSFFormulaEvaluator fe = new HSSFFormulaEvaluator(wb);
+            assertError(fe, cell, "CEILING(\"abc\", \"def\")", FormulaError.VALUE);
+        }
+    }
+}