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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.text;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* @author bratseth
*/
public class ExpressionFormatterTest {
@Test
public void testBasic() {
String expected =
"foo(\n" +
" bar(\n" +
" baz(\n" +
" )\n" +
" )\n" +
")";
assertPrettyPrint(expected, "foo(bar(baz()))", 0);
}
@Test
public void testBasicDense() {
assertPrettyPrint("foo(bar(baz()))", "foo(bar(baz()))", 50);
}
@Test
public void testArgument() {
String expected =
"foo(\n" +
" bar(\n" +
" baz(\n" +
" hello world\n" +
" )\n" +
" )\n" +
")";
assertPrettyPrint(expected, "foo(bar(baz(hello world)))", 0);
}
@Test
public void testMultipleArguments() {
String expected =
"foo(\n" +
" bar(\n" +
" baz(\n" +
" hello world,\n" +
" 37\n" +
" )\n" +
" )\n" +
")";
assertPrettyPrint(expected, "foo(bar(baz(hello world,37)))", 0);
}
@Test
public void testMultipleArgumentsSemiDense() {
String expected =
"foo(\n" +
" bar(\n" +
" baz(hi,37),\n" +
" baz(\n" +
" hello world,\n" +
" 37\n" +
" )\n" +
" )\n" +
")";
assertPrettyPrint(expected, "foo(bar(baz(hi,37),baz(hello world,37)))", 15);
}
@Test
public void testUnmatchedStart() {
String expected =
"foo(\n" +
" (\n" +
" bar(\n" +
" baz(\n" +
" )\n" +
" )\n" +
" )";
assertPrettyPrint(expected, "foo((bar(baz()))", 0);
}
@Test
public void testUnmatchedEnd() {
String expected =
"foo(\n" +
" bar(\n" +
" baz(\n" +
" )\n" +
" )\n" +
")\n" +
")";
assertPrettyPrint(expected, "foo(bar(baz())))", 0);
}
@Test
public void testNoParenthesis() {
String expected =
"foo bar baz";
assertPrettyPrint(expected, "foo bar baz", 0);
}
@Test
public void testEmpty() {
String expected =
"";
assertPrettyPrint(expected, "", 0);
}
@Test
public void test2ColumnMode() {
String expected =
"1: foo(\n" +
" bar(\n" +
" baz(\n" +
"2: hello world\n" +
" )\n" +
"t(o )\n" +
" )";
ExpressionFormatter pp = ExpressionFormatter.inTwoColumnMode(3, 0);
assertEquals(expected, pp.format("\t1:\tfoo(bar(baz(\t2:\thello world)\tt(o)@olong:\t))"));
}
@Test
public void test2ColumnModeMultipleArguments() {
String expected =
"1: foo(\n" +
" bar(\n" +
" baz(\n" +
"2: hello world,\n" +
"3: 37\n" +
" )\n" +
"t(o )\n" +
" )";
ExpressionFormatter pp = ExpressionFormatter.inTwoColumnMode(3, 0);
assertEquals(expected, pp.format("\t1:\tfoo(bar(baz(\t2:\thello world,\t3:\t37)\tt(o)@olong:\t))"));
}
@Test
public void test2ColumnModeMultipleArgumentsSemiDense() {
String expected =
"1: foo(\n" +
" bar(\n" +
" baz(hi,37),\n" +
" boz(\n" +
"2: hello world,\n" +
"3: 5\n" +
" )\n" +
"t(o )\n" +
" )";
ExpressionFormatter pp = ExpressionFormatter.inTwoColumnMode(3, 15);
assertEquals(expected, pp.format("\t1:\tfoo(bar(baz(hi,37),boz(\t2:\thello world,\t3:\t5)\tt(o)@olong:\t))"));
}
@Test
public void test2ColumnModeMultipleArgumentsWithSpaces() {
String expected =
" foo(\n" +
"1: bar(\n" +
" baz(\n" +
"2: hello world,\n" +
"3: 37\n" +
" )\n" +
"t(o )\n" +
" )";
ExpressionFormatter pp = ExpressionFormatter.inTwoColumnMode(3, 0);
assertEquals(expected, pp.format("foo(\t1:\tbar(baz(\t2:\thello world, \t3:\t37)\tt(o)@olong:\t))"));
}
@Test
public void testTwoColumnLambdaFunction() {
String expected =
" join(\n" +
" a,\n" +
" join(\n" +
" b, c, f(a, b)(a * b)\n" +
" )\n" +
" , f(a, b)(a * b)\n" +
" )";
ExpressionFormatter pp = ExpressionFormatter.inTwoColumnMode(5, 25);
assertEquals(expected, pp.format("join(a, join(b, c, f(a, b)(a * b)), f(a, b)(a * b))"));
}
private void assertPrettyPrint(String expected, String expression, int lineLength) {
assertEquals(expected, ExpressionFormatter.withLineLength(lineLength).format(expression));
}
}
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