class GStringTest extends GroovyTestCase { void check(template, teststr) { assert template instanceof GString def count = template.getValueCount() assert count == 1 assert template.getValue(0) == "Bob" def string = template.toString() assert string == teststr } void testWithOneVariable() { def name = "Bob" def teststr = "hello Bob how are you?" check("hello $name how are you?", teststr) check("hello ${name} how are you?", teststr) check("hello ${println "feep"; name} how are you?", teststr) check(/hello $name how are you?/, teststr) check(/hello ${name} how are you?/, teststr) check(/hello ${println "feep"; name} how are you?/, teststr) } void testWithVariableAtEnd() { def name = "Bob" def teststr = "hello Bob" check("hello $name", teststr) check("hello ${name}", teststr) check(/hello $name/, teststr) check(/hello ${name}/, teststr) } void testWithVariableAtBeginning() { def name = "Bob" def teststr = "Bob hey" check("$name hey", teststr) check("${name} hey", teststr) name = "" check("${name += "Bob"; name} hey", teststr) assert name == "Bob" check(/$name hey/, teststr) check(/${name} hey/, teststr) name = "" check(/${name += "Bob"; name} hey/, teststr) } void testWithJustVariable() { def teststr def name = teststr = "Bob" check("$name", teststr) check("${name}", teststr) check("${assert name=="Bob"; name}", teststr) // Put punctuation after the variable name: check("$name.", "Bob.") check("$name...", "Bob...") check("$name?", "Bob?") check(/$name/, teststr) check(/${name}/, teststr) check(/${assert name=="Bob"; name}/, teststr) // Put punctuation after the variable name: check(/$name./, "Bob.") check(/$name.../, "Bob...") check(/$name?/, "Bob?") check(/$name\?/, "Bob\\?") check(/$name$/, "Bob\$") def guy = [name: name] check("${guy.name}", "Bob") check("$guy.name", "Bob") check("$guy.name.", "Bob.") check("$guy.name...", "Bob...") check("$guy.name?", "Bob?") check(/$guy.name/, "Bob") check(/$guy.name./, "Bob.") check(/$guy.name.../, "Bob...") check(/$guy.name?/, "Bob?") check(/$guy.name\?/, "Bob\\?") check(/$guy.name$/, "Bob\$") } void testWithTwoVariables() { def name = "Bob" def template = "${name}${name}" def string = template.toString() assert string == "BobBob" } void testWithTwoVariablesWithSpace() { def name = "Bob" def template = "${name} ${name}" def string = template.toString() assert string == "Bob Bob" } void testAppendString() { def a = "dog" def b = "a ${a}" def c = b + " cat" println("Created ${c}") assert c.toString() == "a dog cat" , c b += " cat" assert b.toString() == "a dog cat" , b } void testAppendGString() { def a = "dog" def b = "a ${a}" b += " cat${a}" assert b.toString() == "a dog catdog" , b println("Created ${b}") } void testReturnString() { def value = dummyMethod() assert value == "Hello Gromit!" } String dummyMethod() { def name = "Gromit" return "Hello ${name}!" } void testCoerce() { def enc = "US-ASCII" def value = "test".getBytes("${enc}") println "Created ${value}" assert value != null } void testGroovy441() { def arg = "test" def content = "${arg} =" if (arg != "something") { content += "?" } content += "= ${arg}." assert content == "test =?= test." } void testTwoStringsInMiddle() { def a = "---" def b = "${a} :" b += " b += ">>" b += ": ${a}" assert b == "--- :: ---" } void testAlternatingGStrings() { def a = "---" def b = "${a} :" b += " b += " [[${a}]] " b += ">>" b += ": ${a}" assert b == "--- :>: ---" } // Test case for bug GROOVY-599 void testGStringInStaticMethod() { int value = 2 String str = "1${value}3" int result = Integer.parseInt(str) assert result == 123 result = Integer.parseInt("1${value}3") assert result == 123 } }
