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c5319e75f5
Keep a count of bytes read rather than comparing pointers since the variable_buffer might get reallocated. Bug and patch by Ken Tossell <ken@tossell.net> Regression tests by Dmitry Goncharov <dgoncharov@users.sf.net> Tweaked by Paul Smith <psmith@gnu.org> * src/function.c (func_file): Use bytes read rather than a pointer. * tests/scripts/functions/file: Provide various tests for reading empty files, files with/without newlines, and large files.
222 lines
4.2 KiB
Perl
222 lines
4.2 KiB
Perl
# -*-perl-*-
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$description = 'Test the $(file ...) function.';
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# Test > and >>
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run_make_test(q!
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define A
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a
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b
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endef
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B = c d
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$(file >file.out,$(A))
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$(foreach L,$(B),$(file >> file.out,$L))
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x:;@echo hi; cat file.out
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!,
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'', "hi\na\nb\nc\nd");
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unlink('file.out');
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# Test >> to a non-existent file
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run_make_test(q!
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define A
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a
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b
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endef
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$(file >> file.out,$(A))
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x:;@cat file.out
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!,
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'', "a\nb");
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unlink('file.out');
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# Test > with no content
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run_make_test(q!
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$(file >4touch)
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.PHONY:x
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x:;@cat 4touch
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!,
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'', '');
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# Test >> with no content
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run_make_test(q!
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$(file >>4touch)
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.PHONY:x
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x:;@cat 4touch
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!,
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'', '');
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unlink('4touch');
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# Test > to a read-only file
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if (defined $ERR_read_only_file) {
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touch('file.out');
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chmod(0444, 'file.out');
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run_make_test(q!
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define A
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a
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b
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endef
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$(file > file.out,$(A))
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x:;@cat file.out
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!,
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'', "#MAKEFILE#:6: *** open: file.out: $ERR_read_only_file. Stop.",
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512);
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unlink('file.out');
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}
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# Use variables for operator and filename
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run_make_test(q!
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define A
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a
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b
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endef
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OP = >
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FN = file.out
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$(file $(OP) $(FN),$(A))
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x:;@cat file.out
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!,
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'', "a\nb");
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unlink('file.out');
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# Don't add newlines if one already exists
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run_make_test(q!
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define A
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a
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b
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endef
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$(file >file.out,$(A))
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x:;@cat file.out
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!,
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'', "a\nb");
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unlink('file.out');
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# Empty text
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run_make_test(q!
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$(file >file.out,)
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$(file >>file.out,)
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x:;@cat file.out
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!,
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'', "\n\n");
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unlink('file.out');
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# Reading files
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run_make_test(q!
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$(file >file.out,A = foo)
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X1 := $(file <file.out)
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$(file >>file.out,B = bar)
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$(eval $(file <file.out))
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x:;@echo '$(X1)'; echo '$(A)'; echo '$(B)'
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!,
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'', "A = foo\nfoo\nbar\n");
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unlink('file.out');
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# Read an empty file.
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touch("file.out");
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run_make_test(q!# empty file
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X1 := x$(file <file.out)y
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x:;@echo '$(X1)'
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!,
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'', "xy\n");
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unlink('file.out');
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# Read a file whose full contents is a newline.
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create_file('file.out', "\n");
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run_make_test(q!# <nl>
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X1 := x$(file <file.out)y
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x:;@echo '$(X1)'
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!,
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'', "xy\n");
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unlink('file.out');
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# Read a file which does not end with a newline.
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create_file('file.out', "hello");
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# echo prints a trailig newline, because run_make_test appends a newline.
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run_make_test(q!# hello
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X1 := x$(file <file.out)y
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x:;@echo $(X1)
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!,
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'', "xhelloy\n");
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unlink('file.out');
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# Read a file which ends with a newline.
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create_file('file.out', "hello\n");
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# echo prints a trailig newline, because run_make_test appends a newline.
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run_make_test(q!# hello<nl>
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X1 := x$(file <file.out)y
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x:;@echo '$(X1)'
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!,
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'', "xhelloy\n");
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unlink('file.out');
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# Read a file which ends with multiple newlines.
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create_file('file.out', "hello\n\n");
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run_make_test(q!# hello<nl><nl>
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X1 := x$(file <file.out)y
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export X1
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x:;@echo "$$X1"
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!,
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'', "xhello\ny\n");
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unlink('file.out');
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# Read a file whose contents exceed 200 bytes.
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# 200 is the initial size of variable_buffer.
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# File bigger than 200 bytes causes a realloc.
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# The size of the file in this test not only exceeds 200 bytes, it exceeds 65k.
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my $s = "hello world, hello world, hello world, hello world, hello world";
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my $answer = $s x 2000;
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create_file('file.out', $answer);
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run_make_test(q!# <hugestring>
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X1 := x$(file <file.out)y
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x:;@echo '$(X1)'
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!,
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'', "x${answer}y\n");
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unlink('file.out');
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# Reading from non-existent file
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run_make_test(q!
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X1 := $(file <file.out)
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x:;@echo '$(X1)';
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!,
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'', "\n");
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# Extra arguments in read mode
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run_make_test(q!
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X1 := $(file <file.out,foo)
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x:;@echo '$(X1)';
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!,
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'', "#MAKEFILE#:2: *** file: too many arguments. Stop.\n", 512);
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# Missing filename
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run_make_test('$(file >)', '',
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"#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
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run_make_test('$(file >>)', '',
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"#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
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run_make_test('$(file <)', '',
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"#MAKEFILE#:1: *** file: missing filename. Stop.\n", 512);
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# Bad call
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run_make_test('$(file foo)', '',
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"#MAKEFILE#:1: *** file: invalid file operation: foo. Stop.\n", 512);
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1;
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