add "zero cost command" synth test
PiperOrigin-RevId: 547790839
diff --git a/java/org/brotli/dec/SynthTest.java b/java/org/brotli/dec/SynthTest.java
index 4fde1b7..d6be0c6 100644
--- a/java/org/brotli/dec/SynthTest.java
+++ b/java/org/brotli/dec/SynthTest.java
@@ -12,7 +12,6 @@
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
-import java.util.Arrays;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@@ -63,6 +62,14 @@
}
}
+ private static String times(int count, String str) {
+ StringBuilder out = new StringBuilder(count * str.length());
+ for (int i = 0; i < count; ++i) {
+ out.append(str);
+ }
+ return out.toString();
+ }
+
/* GENERATED CODE START */
@Test
@@ -575,7 +582,8 @@
*/
compressed,
true,
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaatime"
+ times(28, "a")
+ + "time"
);
}
@@ -839,18 +847,8 @@
*/
compressed,
true,
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbb"
+ times(1022, "a")
+ + times(10, "b")
);
}
@@ -878,18 +876,8 @@
*/
compressed,
true,
- "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
- + "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbb"
+ times(1022, "a")
+ + times(10, "b")
);
}
@@ -2545,13 +2533,7 @@
*/
compressed,
true,
- "abababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababababababababababababababababababab"
- + "ababababababababababababababababababababababababababababab"
+ times(300, "ab")
);
}
@@ -2769,8 +2751,6 @@
(byte) 0x37, (byte) 0x38, (byte) 0x39, (byte) 0x41, (byte) 0x42, (byte) 0x43, (byte) 0x44,
(byte) 0x45, (byte) 0x46, (byte) 0x03
};
- /* This line is added manually. */
- char[] stub = new char[8388602]; Arrays.fill(stub, 'c'); String hex = "0123456789ABCDEF";
checkSynth(
/*
* main_header: 24
@@ -2823,8 +2803,10 @@
*/
compressed,
true,
- /* This line is modified manually. */
- "abc" + new String(stub) + "abc" + hex + hex + hex
+ "abc"
+ + times(8388602, "c")
+ + "abc"
+ + times(3, "0123456789ABCDEF")
);
}
@@ -2908,6 +2890,28 @@
}
@Test
+ public void testZeroCostCommand() {
+ byte[] compressed = {
+ (byte) 0xa1, (byte) 0xf8, (byte) 0x1f, (byte) 0x00, (byte) 0x00, (byte) 0xa1, (byte) 0x12,
+ (byte) 0x82, (byte) 0x04, (byte) 0x00
+ };
+ checkSynth(
+ /*
+ * main_header: 10
+ * metablock_header_begin: 1, 0, 1024, 0 // last, not empty, length, compressed
+ * metablock_header_trivial_context
+ * huffman_simple: 0,1,256, 42 // literal: any
+ * huffman_simple: 0,1,704, 130 // command: insert = 0, copy = 4, distance_code = -1
+ * huffman_simple: 0,1,64, 0 // distance: last
+ * // 256 0-bit commands with direct distances
+ */
+ compressed,
+ true,
+ times(256, "left")
+ );
+ }
+
+ @Test
public void testZeroCostLiterals() {
byte[] compressed = {
(byte) 0x9b, (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0x00, (byte) 0x20, (byte) 0x54,
@@ -2915,8 +2919,6 @@
(byte) 0x12, (byte) 0x00, (byte) 0x00, (byte) 0x77, (byte) 0xda, (byte) 0xcc, (byte) 0xe1,
(byte) 0x7b, (byte) 0xfa, (byte) 0x0f
};
- /* This line is added manually. */
- char[] expected = new char[16777216]; Arrays.fill(expected, '*');
checkSynth(
/*
* main_header
@@ -2930,8 +2932,7 @@
*/
compressed,
true,
- /* This line is modified manually. */
- new String(expected)
+ times(16777216, "*")
);
}
diff --git a/js/decode_synth_test.js b/js/decode_synth_test.js
index 34ab537..197e0ff 100644
--- a/js/decode_synth_test.js
+++ b/js/decode_synth_test.js
@@ -27,11 +27,11 @@
/**
* NB: String.prototype.repeat causes "Maximum call stack size exceeded".
*
- * @param {string} char
* @param {number} count
+ * @param {string} char
* @return {string}
*/
-function repeat(char, count) {
+function times(count, char) {
return char.repeat(count);
}
@@ -495,7 +495,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaatime'
+ times(28, 'a')
+ + 'time'
);
},
@@ -737,21 +738,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaabbbbbbbbbb'
+ times(1022, 'a')
+ + times(10, 'b')
);
},
@@ -774,21 +762,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaabbbbbbbbbb'
+ times(1022, 'a')
+ + times(10, 'b')
);
},
@@ -1918,15 +1893,7 @@
*/
compressed,
true,
- 'ababababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'ababababababababababab'
+ times(300, 'ab')
);
},
@@ -2126,8 +2093,6 @@
0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45,
0x46, 0x03
];
- /* This line is added manually. */
- const stub = repeat("c", 8388602); const hex = "0123456789ABCDEF";
checkSynth(
/*
* main_header: 24
@@ -2180,8 +2145,10 @@
*/
compressed,
true,
- /* This line is modified manually. */
- "abc" + stub + "abc" + repeat(hex, 3)
+ 'abc'
+ + times(8388602, 'c')
+ + 'abc'
+ + times(3, '0123456789ABCDEF')
);
},
@@ -2258,13 +2225,31 @@
);
},
+testZeroCostCommand() {
+ const compressed = [
+ 0xa1, 0xf8, 0x1f, 0x00, 0x00, 0xa1, 0x12, 0x82, 0x04, 0x00
+ ];
+ checkSynth(
+ /*
+ * main_header: 10
+ * metablock_header_begin: 1, 0, 1024, 0 // last, not empty, length, compressed
+ * metablock_header_trivial_context
+ * huffman_simple: 0,1,256, 42 // literal: any
+ * huffman_simple: 0,1,704, 130 // command: insert = 0, copy = 4, distance_code = -1
+ * huffman_simple: 0,1,64, 0 // distance: last
+ * // 256 0-bit commands with direct distances
+ */
+ compressed,
+ true,
+ times(256, 'left')
+ );
+},
+
testZeroCostLiterals() {
const compressed = [
0x9b, 0xff, 0xff, 0xff, 0x00, 0x20, 0x54, 0x00, 0x00, 0x38, 0xd8, 0x32,
0x89, 0x01, 0x12, 0x00, 0x00, 0x77, 0xda, 0xcc, 0xe1, 0x7b, 0xfa, 0x0f
];
- /* This line is added manually. */
- const expected = repeat("*", 16777216);
checkSynth(
/*
* main_header
@@ -2278,8 +2263,7 @@
*/
compressed,
true,
- /* This line is modified manually. */
- expected
+ times(16777216, '*')
);
},
diff --git a/js/decode_synth_test.ts b/js/decode_synth_test.ts
index 4e6b8b6..8a365cd 100644
--- a/js/decode_synth_test.ts
+++ b/js/decode_synth_test.ts
@@ -25,7 +25,7 @@
/**
* NB: String.prototype.repeat causes "Maximum call stack size exceeded".
*/
-function repeat(char:string, count: number): string {
+function times(count: number, char:string): string {
return char.repeat(count);
}
@@ -485,7 +485,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaatime'
+ times(28, 'a')
+ + 'time'
);
},
@@ -727,21 +728,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaabbbbbbbbbb'
+ times(1022, 'a')
+ + times(10, 'b')
);
},
@@ -764,21 +752,8 @@
*/
compressed,
true,
- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
- + 'aaaaaaaaaaaabbbbbbbbbb'
+ times(1022, 'a')
+ + times(10, 'b')
);
},
@@ -1908,15 +1883,7 @@
*/
compressed,
true,
- 'ababababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'abababababababababababababababababababababababababababababababababababab'
- + 'ababababababababababab'
+ times(300, 'ab')
);
},
@@ -2116,8 +2083,6 @@
0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45,
0x46, 0x03
];
- /* This line is added manually. */
- const stub = repeat("c", 8388602); const hex = "0123456789ABCDEF";
checkSynth(
/*
* main_header: 24
@@ -2170,8 +2135,10 @@
*/
compressed,
true,
- /* This line is modified manually. */
- "abc" + stub + "abc" + repeat(hex, 3)
+ 'abc'
+ + times(8388602, 'c')
+ + 'abc'
+ + times(3, '0123456789ABCDEF')
);
},
@@ -2248,13 +2215,31 @@
);
},
+testZeroCostCommand() {
+ const compressed = [
+ 0xa1, 0xf8, 0x1f, 0x00, 0x00, 0xa1, 0x12, 0x82, 0x04, 0x00
+ ];
+ checkSynth(
+ /*
+ * main_header: 10
+ * metablock_header_begin: 1, 0, 1024, 0 // last, not empty, length, compressed
+ * metablock_header_trivial_context
+ * huffman_simple: 0,1,256, 42 // literal: any
+ * huffman_simple: 0,1,704, 130 // command: insert = 0, copy = 4, distance_code = -1
+ * huffman_simple: 0,1,64, 0 // distance: last
+ * // 256 0-bit commands with direct distances
+ */
+ compressed,
+ true,
+ times(256, 'left')
+ );
+},
+
testZeroCostLiterals() {
const compressed = [
0x9b, 0xff, 0xff, 0xff, 0x00, 0x20, 0x54, 0x00, 0x00, 0x38, 0xd8, 0x32,
0x89, 0x01, 0x12, 0x00, 0x00, 0x77, 0xda, 0xcc, 0xe1, 0x7b, 0xfa, 0x0f
];
- /* This line is added manually. */
- const expected = repeat("*", 16777216);
checkSynth(
/*
* main_header
@@ -2268,8 +2253,7 @@
*/
compressed,
true,
- /* This line is modified manually. */
- expected
+ times(16777216, '*')
);
},
