70 lines
2.2 KiB
Forth
70 lines
2.2 KiB
Forth
# Tests for Mu's stream primitives.
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fn test-stream {
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# - write an int to a stream, then read it back
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# step 1: initialize
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var s: (stream int 4)
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var s2/ecx: (addr stream int) <- address s
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var tmp/eax: boolean <- stream-empty? s2
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check tmp, "F - test-stream/empty?/0"
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tmp <- stream-full? s2
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check-not tmp, "F - test-stream/full?/0"
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# step 2: write to stream
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var x: int
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copy-to x, 0x34
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var x2/edx: (addr int) <- address x
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write-to-stream s2, x2
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tmp <- stream-empty? s2
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check-not tmp, "F - test-stream/empty?/1"
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tmp <- stream-full? s2
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check-not tmp, "F - test-stream/full?/1"
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# step 3: modify the value written (should make no difference)
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copy-to x, 0
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# step 4: read back
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var y: int
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var y2/ebx: (addr int) <- address y
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read-from-stream s2, y2
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tmp <- stream-empty? s2
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check tmp, "F - test-stream/empty?/2"
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tmp <- stream-full? s2
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check-not tmp, "F - test-stream/full?/2"
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# we read back what was written
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check-ints-equal y, 0x34, "F - test-stream"
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}
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fn test-stream-full {
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# write an int to a stream of capacity 1
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var s: (stream int 1)
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var s2/ecx: (addr stream int) <- address s
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var tmp/eax: boolean <- stream-full? s2
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check-not tmp, "F - test-stream-full?/pre"
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var x: int
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var x2/edx: (addr int) <- address x
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write-to-stream s2, x2
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tmp <- stream-full? s2
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check tmp, "F - test-stream-full?"
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}
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fn test-fake-input-buffered-file {
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var foo: (handle buffered-file)
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var foo-ah/eax: (addr handle buffered-file) <- address foo
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populate-buffered-file-containing "abc", foo-ah
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var foo-addr/eax: (addr buffered-file) <- lookup foo
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var s: (stream byte 0x100)
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var result/ecx: (addr stream byte) <- address s
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read-line-buffered foo-addr, result
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check-stream-equal result, "abc", "F - test-fake-input-buffered-file"
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}
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fn test-fake-output-buffered-file {
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var foo: (handle buffered-file)
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var foo-ah/eax: (addr handle buffered-file) <- address foo
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new-buffered-file foo-ah
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var foo-addr/eax: (addr buffered-file) <- lookup foo
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write-buffered foo-addr, "abc"
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var s: (stream byte 0x100)
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var result/ecx: (addr stream byte) <- address s
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read-line-buffered foo-addr, result
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check-stream-equal result, "abc", "F - test-fake-output-buffered-file"
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}
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