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Made test cases more reliable.

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This commit is contained in:
Harald Kuhr 2009-11-02 17:40:03 +01:00
parent 18b86f8d26
commit 46ab06f471
1 changed files with 44 additions and 22 deletions
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64
twelvemonkeys-imageio/core/src/test/java/com/twelvemonkeys/imageio/spi/ProviderInfoTestCase.java
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@ -2,6 +2,8 @@ package com.twelvemonkeys.imageio.spi;
import junit.framework.TestCase;
import java.net.URL;
/**
* ProviderInfoTestCase
*
@ -24,23 +26,20 @@ public class ProviderInfoTestCase extends TestCase {
}
}
public void testGetVendorUnknownPackage() {
// TODO: FixMe: This test will fail if for some reason JUnit adds manifest info to their JAR..
ProviderInfo info = new ProviderInfo(Package.getPackage("junit.framework"));
public void testGetVendorNonJARPackage() {
ProviderInfo info = new ProviderInfo(mockNonJARPackage("org.foo"));
String vendor = info.getVendorName();
assertNotNull(vendor);
assertEquals("junit.framework", vendor);
assertEquals("org.foo", vendor);
String version = info.getVersion();
assertNotNull(version);
assertEquals("DEV", version);
}
public void testGetVendorTMPackage() {
// TODO: FixMe: This test will fail if for some reason the tests are run from within a JAR-file,
// and depends on implementation details.
ProviderInfo info = new ProviderInfo(getClass().getPackage());
public void testGetVendorNonJARTMPackage() {
ProviderInfo info = new ProviderInfo(mockNonJARPackage("com.twelvemonkeys"));
String vendor = info.getVendorName();
assertNotNull(vendor);
@ -51,25 +50,48 @@ public class ProviderInfoTestCase extends TestCase {
assertEquals("DEV", version);
}
public void testGetVendorKnownPackage() {
// TODO: FixMe: This test depends on implementation details, and may fail on various JRE's...
ProviderInfo info = new ProviderInfo(Package.getPackage("java.util"));
public void testGetVendorKnownJARPackage() {
ProviderInfo info = new ProviderInfo(mockJARPackage("com.acme", "1.7u4-BETA-b39", "Acme"));
String vendor = info.getVendorName();
assertNotNull(vendor);
assertFalse("".equals(vendor));
// NOTE: Does not work: assertEquals(System.getProperty("java.vendor"), vendor);
assertFalse("TwelveMonkeys".equals(vendor));
assertFalse("java.util".equals(vendor));
assertEquals("Acme", vendor);
String version = info.getVersion();
assertNotNull(version);
assertFalse("".equals(version));
assertFalse("DEV".equals(version));
assertEquals("1.7u4-BETA-b39", version);
}
// Is this safe to assume?
String jreVersion = System.getProperty("java.version");
assertTrue(jreVersion.equals(version) || jreVersion.startsWith(version) || version.startsWith(jreVersion));
private Package mockNonJARPackage(final String pName) {
return new MockClassLoader().mockPackage(
pName,
null, null, null,
null, null, null,
null
);
}
private Package mockJARPackage(final String pName, final String pImplVersion, final String pImplVendor) {
return new MockClassLoader().mockPackage(
pName,
"The almighty specification", "1.0", "Acme Inc",
"The buggy implementation", pImplVersion, pImplVendor,
null
);
}
private static class MockClassLoader extends ClassLoader {
protected MockClassLoader() {
super(null);
}
public Package mockPackage(String name, String specTitle, String specVersion, String specVendor, String implTitle, String implVersion, String implVendor, URL sealBase) throws IllegalArgumentException {
return definePackage(name, specTitle, specVersion, specVendor, implTitle, implVersion, implVendor, sealBase);
}
@Override
protected Package getPackage(String name) {
return null; // Allow re-createing packages
}
}
}