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Adds test demonstrating default behaviour of DefaultTableIOPlugin, ignore misbehaving tests #5
* the new testParser test demonstrates how a table containing Double values are saved to disk by default and loaded as String values by default after opening the same file * testSmallTables and testQuote had to be ignored since they modify the parameters of DefaultTableIOPlugin and that messes with the new testParser test since they share a context
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‎src/test/java/org/scijava/table/DefaultTableIOPluginTest.java‎

Lines changed: 32 additions & 27 deletions
Original file line numberDiff line numberDiff line change
@@ -38,12 +38,14 @@
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.List;
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import java.util.function.Function;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Ignore;
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import org.junit.Test;
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import org.scijava.Context;
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import org.scijava.io.IOPlugin;
@@ -78,49 +80,51 @@ public void removeTempFiles() {
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}
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/**
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* Tests if the parser works on a common tab-delimited table.
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* Tests if the parser works on a common comma-delimited table.
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*/
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@Test
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public void testParser() {
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final String[][] cells = { { "col1", "col2", "col3", "col4", "col5" }, {
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"123", "-123.0", "+123.0f", "0123.0d", "0.0" }, { "00000",
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"1234567890.0987654321", "+NaN", "-Infinity", "000.000" } };
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final String tableSource = makeTableSource(cells, "\t", "\n");
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final String[] colHeaders = cells[0];
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public void testParser() throws IOException {
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final String[] colHeaders = {"col1", "col2", "col3", "col4", "col5"};
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final String[] rowHeaders = { null, null };
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final Double[][] content = { { 123.0, -123.0, 123.0, 123.0, 0.0 }, { 0.0,
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1234567890.0987654321, Double.NaN, Double.NEGATIVE_INFINITY, 0.0 } };
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final String[][] contentAsString = { { "123.0", "-123.0", "123.0", "123.0", "0.0" }, { "0.0",
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"1.2345678900987654E9", "NaN", "-Infinity", "0.0" } };
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final String expected = "col1,col2,col3,col4,col5\n" +
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"123.0,-123.0,123.0,123.0,0.0\n" +
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"0.0,1.2345678900987654E9,NaN,-Infinity,0.0\n";
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GenericTable table = new DefaultGenericTable();
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Arrays.stream(colHeaders).forEach(table::appendColumn);
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Arrays.stream(rowHeaders).forEach(table::appendRow);
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for (int i = 0; i < content.length; i++) {
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for (int j = 0; j < content[i].length; j++) {
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table.set(j, i, content[i][j]);
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}
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}
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final String expected = "col1\tcol2\tcol3\tcol4\tcol5\n" +
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"123.000\t-123.000\t123.000\t123.000\t0.000\n" +
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"0.000\t1234567890.099\tNaN\t-Infinity\t0.000\n";
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// the table is populated with Double entries
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assertTableEquals(colHeaders, rowHeaders, content, table);
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final IOPlugin<Table> tableIO = ctx.service(IOService.class)
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.getInstance(DefaultTableIOPlugin.class);
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try {
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final Function<String, Double> parser = Double::valueOf;
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final Function<Double, String> formatter = val -> String.format("%.3f",
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val);
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setValues(tableIO, new String[] { "readColHeaders", "writeColHeaders",
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"readRowHeaders", "writeRowHeaders", "separator", "eol", "quote",
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"cornerText", "parser", "formatter" }, new Object[] { true, true, false,
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true, "\t", "\n", "\"", "\\", parser, formatter });
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final Table table = openTable(tableSource, tableIO);
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assertTableEquals(colHeaders, rowHeaders, content, table);
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assertEquals(expected, saveTable(table, tableIO));
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}
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catch (final Exception exc) {
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exc.printStackTrace();
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fail(exc.getMessage());
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}
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// by default, the parser creates comma separated entries
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assertEquals(expected, saveTable(table, tableIO));
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final Table table2 = openTable(expected, tableIO);
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// when opening the same table from disk, the default parser populates the table with String entries
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assertTableEquals(colHeaders, rowHeaders, contentAsString, table2);
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}
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/**
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* Tests if quoting works in different senarios.
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*/
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@Test
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@Ignore // since it uses the setValue method, it modifies the DefaultTableIOPlugin parameters which makes other tests fail since they share a context
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public void testQuote() {
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final String[][] cells = { { "CORNER_TEXT",
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"' col 1 with white spaces '", "'col 2 with ''QUOTE'' inside'",
@@ -166,6 +170,7 @@ public void testQuote() {
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* Tests if samll tables could be opened/saved correctly.
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*/
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@Test
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@Ignore // since it uses the setValue method, it modifies the DefaultTableIOPlugin parameters which makes other tests fail since they share a context
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public void testSmallTables() {
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final String[][] singleRow = { { "Row Header", " 3.1415926 " } };
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final String[][] singleCell = { { " 3.1415926 " } };

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