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BlobTests.java
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166 lines (147 loc) · 4.93 KB
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package com.almworks.sqlite4java;
public class BlobTests extends SQLiteConnectionFixture {
private static final int SIZE = 100000;
public void testOpen() throws SQLiteException {
SQLiteConnection db = open();
SQLiteBlob blob = db.blob(null, "T", "value", 1, true);
assertFalse(blob.isDisposed());
assertTrue(blob.isWriteAllowed());
blob.dispose();
assertTrue(blob.isDisposed());
blob = db.blob(null, "T", "value", 1, false);
assertFalse(blob.isDisposed());
assertFalse(blob.isWriteAllowed());
assertEquals(SIZE, blob.getSize());
blob.dispose();
assertTrue(blob.isDisposed());
try {
blob = db.blob(null, "T", "value", -99, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
try {
blob = db.blob(null, "T", "value", 2, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
try {
blob = db.blob(null, "T", "value", 0, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
try {
blob = db.blob(null, "T", "value1", 1, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
try {
blob = db.blob(null, "T1", "value", 1, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
try {
blob = db.blob("x", "T", "value", 1, false);
fail("opened " + blob);
} catch (SQLiteException e) {
// normal
}
db.dispose();
}
private SQLiteConnection open() throws SQLiteException {
SQLiteConnection db = fileDb().open(true);
db.exec("drop table if exists T");
db.exec("create table T (id integer not null primary key autoincrement, value blob)");
db.prepare("insert into T (value) values (?)").bindZeroBlob(1, SIZE).stepThrough().dispose();
long id = db.getLastInsertId();
assertEquals(1, id);
return db;
}
public void testReadWrite() throws SQLiteException {
SQLiteConnection db = open();
db.exec("BEGIN IMMEDIATE");
SQLiteBlob blob = db.blob(null, "T", "value", 1, true);
byte[] data = generate(SIZE);
int CHUNK = 8192;
int p = 0;
while (p < data.length) {
int length = Math.min(CHUNK, data.length - p);
blob.write(p, data, p, length);
p += length;
}
blob.dispose();
db.exec("COMMIT");
blob = db.blob(null, "T", "value", 1, false);
byte[] chunk = new byte[CHUNK];
p = 0;
while (p < data.length) {
int length = Math.min(CHUNK, data.length - p);
blob.read(p, chunk, 0, length);
for (int i = 0; i < length; i++)
assertEquals("[" + (p + i) + "]", data[p + i], chunk[i]);
p += length;
}
db.dispose();
}
public void testMultipleOpen() throws SQLiteException {
SQLiteConnection db = open();
doMultipleCheck(db);
db.exec("BEGIN DEFERRED");
doMultipleCheck(db);
db.exec("COMMIT");
db.exec("BEGIN IMMEDIATE");
doMultipleCheck(db);
db.exec("COMMIT");
db.dispose();
}
private static void doMultipleCheck(SQLiteConnection db) throws SQLiteException {
SQLiteBlob blob1 = db.blob(null, "T", "value", 1, true);
SQLiteBlob blob2 = db.blob(null, "T", "value", 1, true);
SQLiteBlob blob3 = db.blob(null, "T", "value", 1, false);
SQLiteBlob blob4 = db.blob(null, "T", "value", 1, false);
byte[] data = {111, 0, 0, 0, 0};
blob1.write(0, data, 0, 1);
blob2.write(1, data, 0, 1);
blob3.read(0, data, 1, 2);
blob4.read(0, data, 3, 2);
for (int i = 1; i < 5; i++)
assertEquals("[" + i + "]", data[i], data[0]);
blob1.dispose();
blob2.dispose();
blob3.dispose();
blob4.dispose();
}
public void testRowidEqualsPK() throws SQLiteException {
SQLiteConnection db = fileDb().open(true);
db.exec("drop table if exists T");
db.exec("create table T (id integer not null primary key autoincrement, value blob)");
db.prepare("insert into T (id, value) values (?, ?)").bind(1, 999).bindZeroBlob(2, SIZE).stepThrough().dispose();
SQLiteBlob blob = db.blob("T", "value", 999, true);
assertNotNull(blob);
db.dispose();
}
public void testBlobBindColumn() throws SQLiteException {
byte[] data = generate(SIZE);
SQLiteConnection db = open();
SQLiteStatement st = db.prepare("insert into T (value) values (?)");
st.bind(1, data);
st.step();
st.dispose();
st = db.prepare("select value from T");
assertTrue(st.step());
byte[] b1 = st.columnBlob(0);
assertEquals(SIZE, b1.length);
for (int i = 0; i < b1.length; i++)
assertEquals("[" + i + "]", 0, b1[i]);
assertTrue(st.step());
b1 = st.columnBlob(0);
for (int i = 0; i < b1.length; i++)
assertEquals("[" + i + "]", data[i], b1[i]);
assertFalse(st.step());
db.dispose();
}
}