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Merged
merged 3 commits into from
Dec 21, 2018
Merged

[Painless] Add String Casting Tests #36945

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5c54202
Fix String to char error messages. Add String casting tests.
jdconrad Dec 21, 2018
38c4f2a
Fix tests.
jdconrad Dec 21, 2018
e100929
Merge branch 'master' into number6
jdconrad Dec 21, 2018
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8 changes: 7 additions & 1 deletion modules/lang-painless/src/main/java/org/elasticsearch/painless/Utility.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,14 @@ public static String charToString(final char value) {
}

public static char StringTochar(final String value) {
if (value == null) {
throw new ClassCastException("cannot cast " +
"null " + String.class.getCanonicalName() + " to " + char.class.getCanonicalName());
}

if (value.length() != 1) {
throw new ClassCastException("Cannot cast [String] with length greater than one to [char].");
throw new ClassCastException("cannot cast " +
String.class.getCanonicalName() + " with length not equal to one to " + char.class.getCanonicalName());
}

return value.charAt(0);
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96 changes: 96 additions & 0 deletions modules/lang-painless/src/test/java/org/elasticsearch/painless/StandardCastTests.java
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Expand Up @@ -545,4 +545,100 @@ public void testNumberCasts() {
expectScriptThrows(ClassCastException.class, () -> exec("Number o = new ArrayList(); ArrayList b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("Number o = new ArrayList(); ArrayList b = (ArrayList)o;"));
}

public void testStringCasts() {
exec("String o = 'string'; Object n = o;");
exec("String o = null; Object n = o;");
exec("String o = 'string'; Object n = (Object)o;");
exec("String o = null; Object n = (Object)o;");

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Number n = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Number n = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Number n = (String)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Number n = (String)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; boolean b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; boolean b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; boolean b = (boolean)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; boolean b = (boolean)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; byte b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; byte b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; byte b = (byte)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; byte b = (byte)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; short b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; short b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; short b = (short)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; short b = (short)o;"));

assertEquals('s', exec("String s = 's'; (char)s"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; char b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; char b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; char b = (char)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; char b = (char)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; int b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; int b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; int b = (int)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; int b = (int)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; long b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; long b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; long b = (long)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; long b = (long)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; float b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; float b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; float b = (float)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; float b = (float)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; double b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; double b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; double b = (double)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; double b = (double)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Boolean b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Boolean b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Boolean b = (Boolean)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Boolean b = (Boolean)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Byte b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Byte b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Byte b = (Byte)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Byte b = (Byte)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Short b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Short b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Short b = (Short)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Short b = (Short)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Character b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Character b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Character b = (Character)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Character b = (Character)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Integer b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Integer b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Integer b = (Integer)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Integer b = (Integer)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Long b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Long b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Long b = (Long)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Long b = (Long)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Float b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Float b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Float b = (Float)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Float b = (Float)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Double b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Double b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; Double b = (Double)o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = null; Double b = (Double)o;"));

expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; ArrayList b = o;"));
expectScriptThrows(ClassCastException.class, () -> exec("String o = 'string'; ArrayList b = (ArrayList)o;"));
}
}
8 changes: 4 additions & 4 deletions modules/lang-painless/src/test/java/org/elasticsearch/painless/StringTests.java
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Expand Up @@ -170,22 +170,22 @@ public void testStringAndCharacter() {
ClassCastException expected = expectScriptThrows(ClassCastException.class, false, () -> {
assertEquals("cc", exec("return (String)(char)\"cc\""));
});
assertTrue(expected.getMessage().contains("Cannot cast [String] with length greater than one to [char]."));
assertTrue(expected.getMessage().contains("cannot cast java.lang.String with length not equal to one to char"));

expected = expectScriptThrows(ClassCastException.class, false, () -> {
assertEquals("cc", exec("return (String)(char)'cc'"));
});
assertTrue(expected.getMessage().contains("Cannot cast [String] with length greater than one to [char]."));
assertTrue(expected.getMessage().contains("cannot cast java.lang.String with length not equal to one to char"));

expected = expectScriptThrows(ClassCastException.class, () -> {
assertEquals('c', exec("String s = \"cc\"; (char)s"));
});
assertTrue(expected.getMessage().contains("Cannot cast [String] with length greater than one to [char]."));
assertTrue(expected.getMessage().contains("cannot cast java.lang.String with length not equal to one to char"));

expected = expectScriptThrows(ClassCastException.class, () -> {
assertEquals('c', exec("String s = 'cc'; (char)s"));
});
assertTrue(expected.getMessage().contains("Cannot cast [String] with length greater than one to [char]."));
assertTrue(expected.getMessage().contains("cannot cast java.lang.String with length not equal to one to char"));
}

public void testDefConcat() {
Expand Down