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-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/assert_always_true.gd5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/assert_always_true.out13
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.gd8
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.out1
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.gd1
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.out4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.gd1
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.out4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.gd3
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.out4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.gd4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.out4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.gd8
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/integer_division.gd10
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/integer_division.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.gd9
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.out6
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.gd5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.gd6
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.out1
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.gd8
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.out9
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.gd8
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.out9
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.gd2
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.out9
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/standalone_expression.gd9
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/standalone_expression.out21
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.gd2
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.gd4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.gd7
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unused_argument.gd12
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unused_argument.out5
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/unused_variable.gd4
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/void_assignment.gd6
-rw-r--r--modules/gdscript/tests/scripts/parser/warnings/void_assignment.out5
41 files changed, 246 insertions, 1 deletions
diff --git a/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.gd b/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.gd
new file mode 100644
index 0000000000..8feaed899f
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.gd
@@ -0,0 +1,5 @@
+func test():
+ # These statements always evaluate to `true`, and therefore emit a warning.
+ assert(true)
+ assert(-1.234)
+ assert(2 + 3 == 5)
diff --git a/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.out b/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.out
new file mode 100644
index 0000000000..5132792cb7
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/assert_always_true.out
@@ -0,0 +1,13 @@
+GDTEST_OK
+>> WARNING
+>> Line: 3
+>> ASSERT_ALWAYS_TRUE
+>> Assert statement is redundant because the expression is always true.
+>> WARNING
+>> Line: 4
+>> ASSERT_ALWAYS_TRUE
+>> Assert statement is redundant because the expression is always true.
+>> WARNING
+>> Line: 5
+>> ASSERT_ALWAYS_TRUE
+>> Assert statement is redundant because the expression is always true.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.gd b/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.gd
new file mode 100644
index 0000000000..f72b10213f
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.gd
@@ -0,0 +1,8 @@
+func test():
+ # `and` should be used instead.
+ if true && true:
+ pass
+
+ # `or` should be used instead.
+ if false || true:
+ pass
diff --git a/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.out b/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.out
new file mode 100644
index 0000000000..d73c5eb7cd
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/deprecated_operators.out
@@ -0,0 +1 @@
+GDTEST_OK
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.gd b/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.gd
new file mode 100644
index 0000000000..8b13789179
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.gd
@@ -0,0 +1 @@
+
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.out b/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.out
new file mode 100644
index 0000000000..20eec212ba
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file.notest.out
@@ -0,0 +1,4 @@
+>> WARNING
+>> Line: 1
+>> EMPTY_FILE
+>> Empty script file.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.gd b/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.gd
new file mode 100644
index 0000000000..15cd95ff2b
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.gd
@@ -0,0 +1 @@
+#a comment
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.out b/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.out
new file mode 100644
index 0000000000..20eec212ba
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_comment.notest.out
@@ -0,0 +1,4 @@
+>> WARNING
+>> Line: 1
+>> EMPTY_FILE
+>> Empty script file.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.gd b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.gd
new file mode 100644
index 0000000000..b28b04f643
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.gd
@@ -0,0 +1,3 @@
+
+
+
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.out b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.out
new file mode 100644
index 0000000000..20eec212ba
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline.notest.out
@@ -0,0 +1,4 @@
+>> WARNING
+>> Line: 1
+>> EMPTY_FILE
+>> Empty script file.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.gd b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.gd
new file mode 100644
index 0000000000..ecdba44d21
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.gd
@@ -0,0 +1,4 @@
+#a comment, followed by a bunch of newlines
+
+
+
diff --git a/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.out b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.out
new file mode 100644
index 0000000000..20eec212ba
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/empty_file_newline_comment.notest.out
@@ -0,0 +1,4 @@
+>> WARNING
+>> Line: 1
+>> EMPTY_FILE
+>> Empty script file.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.gd b/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.gd
new file mode 100644
index 0000000000..a93ecb66b1
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.gd
@@ -0,0 +1,8 @@
+func test():
+ # The ternary operator below returns values of different types and the
+ # result is assigned to a typed variable. This will cause a run-time error
+ # if the branch with the incompatible type is picked. Here, it won't happen
+ # since the `false` condition never evaluates to `true`. Instead, a warning
+ # will be emitted.
+ var __: int = 25
+ __ = "hello" if false else -2
diff --git a/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.out b/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.out
new file mode 100644
index 0000000000..7d1558c6fc
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/incompatible_ternary.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 8
+>> INCOMPATIBLE_TERNARY
+>> Values of the ternary conditional are not mutually compatible.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/integer_division.gd b/modules/gdscript/tests/scripts/parser/warnings/integer_division.gd
new file mode 100644
index 0000000000..6117425528
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/integer_division.gd
@@ -0,0 +1,10 @@
+func test():
+ # This should emit a warning.
+ var __ = 5 / 2
+
+ # These should not emit warnings.
+ __ = float(5) / 2
+ __ = 5 / float(2)
+ __ = 5.0 / 2
+ __ = 5 / 2.0
+ __ = 5.0 / 2.0
diff --git a/modules/gdscript/tests/scripts/parser/warnings/integer_division.out b/modules/gdscript/tests/scripts/parser/warnings/integer_division.out
new file mode 100644
index 0000000000..40eb63ffcb
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/integer_division.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 3
+>> INTEGER_DIVISION
+>> Integer division, decimal part will be discarded.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.gd b/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.gd
new file mode 100644
index 0000000000..1eb54059dd
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.gd
@@ -0,0 +1,9 @@
+func test():
+ var i = 25
+ # The default branch (`_`) should be at the end of the `match` statement.
+ # Otherwise, a warning will be emitted
+ match i:
+ _:
+ print("default")
+ 25:
+ print("is 25")
diff --git a/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.out b/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.out
new file mode 100644
index 0000000000..8630fab420
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/match_default_not_at_end.out
@@ -0,0 +1,6 @@
+GDTEST_OK
+>> WARNING
+>> Line: 8
+>> UNREACHABLE_PATTERN
+>> Unreachable pattern (pattern after wildcard or bind).
+default
diff --git a/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.gd b/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.gd
new file mode 100644
index 0000000000..954e697145
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.gd
@@ -0,0 +1,5 @@
+func i_accept_ints_only(_i: int):
+ pass
+
+func test():
+ i_accept_ints_only(12.345)
diff --git a/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.out b/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.out
new file mode 100644
index 0000000000..6fb592117b
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/narrowing_conversion.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 5
+>> NARROWING_CONVERSION
+>> Narrowing conversion (float is converted to int and loses precision).
diff --git a/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.gd b/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.gd
new file mode 100644
index 0000000000..00598e4d50
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.gd
@@ -0,0 +1,6 @@
+func i_return_int() -> int:
+ return 4
+
+
+func test():
+ i_return_int()
diff --git a/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.out b/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.out
new file mode 100644
index 0000000000..d73c5eb7cd
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/return_value_discarded.out
@@ -0,0 +1 @@
+GDTEST_OK
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.gd b/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.gd
new file mode 100644
index 0000000000..d565d38365
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.gd
@@ -0,0 +1,8 @@
+# See also `parser-errors/redefine-class-constant.gd`.
+const TEST = 25
+
+
+func test():
+ # Warning here. This is not an error because a new constant is created,
+ # rather than attempting to set the value of an existing constant.
+ const TEST = 50
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.out b/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.out
new file mode 100644
index 0000000000..9c9417e11d
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_constant.out
@@ -0,0 +1,9 @@
+GDTEST_OK
+>> WARNING
+>> Line: 8
+>> UNUSED_LOCAL_CONSTANT
+>> The local constant 'TEST' is declared but never used in the block. If this is intended, prefix it with an underscore: '_TEST'
+>> WARNING
+>> Line: 8
+>> SHADOWED_VARIABLE
+>> The local constant "TEST" is shadowing an already-declared constant at line 2.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.gd b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.gd
new file mode 100644
index 0000000000..66dcf309e8
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.gd
@@ -0,0 +1,8 @@
+var foo = 123
+
+
+func test():
+ # Notice the `var` keyword. Without this keyword, no warning would be emitted
+ # because no new variable would be created. Instead, the class variable's value
+ # would be overwritten.
+ var foo = 456
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.out b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.out
new file mode 100644
index 0000000000..82e467b368
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_class.out
@@ -0,0 +1,9 @@
+GDTEST_OK
+>> WARNING
+>> Line: 8
+>> UNUSED_VARIABLE
+>> The local variable 'foo' is declared but never used in the block. If this is intended, prefix it with an underscore: '_foo'
+>> WARNING
+>> Line: 8
+>> SHADOWED_VARIABLE
+>> The local variable "foo" is shadowing an already-declared variable at line 1.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.gd b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.gd
new file mode 100644
index 0000000000..2c55d68be8
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.gd
@@ -0,0 +1,2 @@
+func test():
+ var test = "This variable has the same name as the test() function."
diff --git a/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.out b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.out
new file mode 100644
index 0000000000..26ce0465b1
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/shadowed_variable_function.out
@@ -0,0 +1,9 @@
+GDTEST_OK
+>> WARNING
+>> Line: 2
+>> UNUSED_VARIABLE
+>> The local variable 'test' is declared but never used in the block. If this is intended, prefix it with an underscore: '_test'
+>> WARNING
+>> Line: 2
+>> SHADOWED_VARIABLE
+>> The local variable "test" is shadowing an already-declared function at line 1.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.gd b/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.gd
new file mode 100644
index 0000000000..18ea260fa2
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.gd
@@ -0,0 +1,9 @@
+func test():
+ # The following statements should all be reported as standalone expressions:
+ "This is a standalone expression"
+ 1234
+ 0.0 + 0.0
+ Color(1, 1, 1)
+ Vector3.ZERO
+ [true, false]
+ float(125)
diff --git a/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.out b/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.out
new file mode 100644
index 0000000000..99ec87438e
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/standalone_expression.out
@@ -0,0 +1,21 @@
+GDTEST_OK
+>> WARNING
+>> Line: 3
+>> STANDALONE_EXPRESSION
+>> Standalone expression (the line has no effect).
+>> WARNING
+>> Line: 4
+>> STANDALONE_EXPRESSION
+>> Standalone expression (the line has no effect).
+>> WARNING
+>> Line: 5
+>> STANDALONE_EXPRESSION
+>> Standalone expression (the line has no effect).
+>> WARNING
+>> Line: 7
+>> STANDALONE_EXPRESSION
+>> Standalone expression (the line has no effect).
+>> WARNING
+>> Line: 8
+>> STANDALONE_EXPRESSION
+>> Standalone expression (the line has no effect).
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.gd b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.gd
new file mode 100644
index 0000000000..afb5059eea
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.gd
@@ -0,0 +1,2 @@
+func test():
+ var __
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.out b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.out
new file mode 100644
index 0000000000..cf14502e9a
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 2
+>> UNASSIGNED_VARIABLE
+>> The variable '__' was used but never assigned a value.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.gd b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.gd
new file mode 100644
index 0000000000..d77791f4c5
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.gd
@@ -0,0 +1,4 @@
+func test():
+ var __: int
+ # Variable has no set value at this point (even though it's implicitly `0` here).
+ __ += 15
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.out b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.out
new file mode 100644
index 0000000000..ba55a4e0f8
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unassigned_variable_op_assign.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 4
+>> UNASSIGNED_VARIABLE_OP_ASSIGN
+>> Using assignment with operation but the variable '__' was not previously assigned a value.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.gd b/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.gd
new file mode 100644
index 0000000000..3311f342ab
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.gd
@@ -0,0 +1,7 @@
+func test():
+ var i = 25
+
+ return
+
+ # This will never be run due to the `return` statement above.
+ print(i)
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.out b/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.out
new file mode 100644
index 0000000000..9316abd5eb
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unreachable_code_after_return.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 7
+>> UNREACHABLE_CODE
+>> Unreachable code (statement after return) in function 'test()'.
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unused_argument.gd b/modules/gdscript/tests/scripts/parser/warnings/unused_argument.gd
new file mode 100644
index 0000000000..e6e24dc6f2
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unused_argument.gd
@@ -0,0 +1,12 @@
+# This should emit a warning since the unused argument is not prefixed with an underscore.
+func function_with_unused_argument(p_arg1, p_arg2):
+ print(p_arg1)
+
+
+# This shouldn't emit a warning since the unused argument is prefixed with an underscore.
+func function_with_ignored_unused_argument(p_arg1, _p_arg2):
+ print(p_arg1)
+
+
+func test():
+ pass
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unused_argument.out b/modules/gdscript/tests/scripts/parser/warnings/unused_argument.out
new file mode 100644
index 0000000000..92f3308f85
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/unused_argument.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 2
+>> UNUSED_PARAMETER
+>> The parameter 'p_arg2' is never used in the function 'function_with_unused_argument'. If this is intended, prefix it with an underscore: '_p_arg2'
diff --git a/modules/gdscript/tests/scripts/parser/warnings/unused_variable.gd b/modules/gdscript/tests/scripts/parser/warnings/unused_variable.gd
index 68e3bd424f..013a2e4beb 100644
--- a/modules/gdscript/tests/scripts/parser/warnings/unused_variable.gd
+++ b/modules/gdscript/tests/scripts/parser/warnings/unused_variable.gd
@@ -1,2 +1,4 @@
func test():
- var unused = "not used"
+ var unused = "not used"
+
+ var _unused = "not used, but no warning since the variable name starts with an underscore"
diff --git a/modules/gdscript/tests/scripts/parser/warnings/void_assignment.gd b/modules/gdscript/tests/scripts/parser/warnings/void_assignment.gd
new file mode 100644
index 0000000000..b4a42b3e3d
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/void_assignment.gd
@@ -0,0 +1,6 @@
+func i_return_void() -> void:
+ return
+
+
+func test():
+ var __ = i_return_void()
diff --git a/modules/gdscript/tests/scripts/parser/warnings/void_assignment.out b/modules/gdscript/tests/scripts/parser/warnings/void_assignment.out
new file mode 100644
index 0000000000..84c9598f9a
--- /dev/null
+++ b/modules/gdscript/tests/scripts/parser/warnings/void_assignment.out
@@ -0,0 +1,5 @@
+GDTEST_OK
+>> WARNING
+>> Line: 6
+>> VOID_ASSIGNMENT
+>> Assignment operation, but the function 'i_return_void()' returns void.