Add unit tests

vjtop/pom.xml

@@ -16,6 +16,7 @@
 		<maven.compiler.source>${java.version}</maven.compiler.source>
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 		<maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
+		<junit.version>4.12</junit.version>
 	</properties>
 
 	<dependencies>
@@ -31,6 +32,12 @@
 			<scope>system</scope>
 			<systemPath>${toolsjar}</systemPath>
 		</dependency>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>${junit.version}</version>
+			<scope>test</scope>
+		</dependency>
 	</dependencies>
 
 	<build>

vjtop/src/test/java/com/vip/vjtools/vjtop/util/FormatsTest.java

@@ -0,0 +1,249 @@
+package com.vip.vjtools.vjtop.util;
+
+import com.vip.vjtools.vjtop.WarningRule.LongWarning;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import java.util.ArrayList;
+
+public class FormatsTest {
+
+    @Rule public ExpectedException thrown = ExpectedException.none();
+
+    @Test
+    public void joinInput0NotNullOutputNotNull() {
+
+        // Arrange
+        final ArrayList<String> list = new ArrayList<String>();
+        final String delim = "AAAAAAAA";
+
+        // Act
+        final String retval = Formats.join(list, delim);
+
+        // Assert result
+        Assert.assertEquals("", retval);
+    }
+
+    @Test
+    public void joinInput1NullOutputNotNull() {
+
+        // Arrange
+        final ArrayList<String> list = new ArrayList<String>();
+        list.add("");
+        final String delim = null;
+
+        // Act
+        final String retval = Formats.join(list, delim);
+
+        // Assert result
+        Assert.assertEquals("", retval);
+    }
+
+    @Test
+    public void leftStrInputNotNullNegativeOutputStringIndexOutOfBoundsException() {
+
+        // Arrange
+        final String str = "!";
+        final int length = -536_870_911;
+
+        // Act
+        thrown.expect(StringIndexOutOfBoundsException.class);
+        Formats.leftStr(str, length);
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void leftStrInputNotNullZeroOutputNotNull() {
+
+        // Arrange
+        final String str = "!!!!!!!!";
+        final int length = 0;
+
+        // Act
+        final String retval = Formats.leftStr(str, length);
+
+        // Assert result
+        Assert.assertEquals("", retval);
+    }
+
+    @Test
+    public void rightStrInputNotNullNegativeOutputStringIndexOutOfBoundsException() {
+
+        // Arrange
+        final String str = "!!!!!!!!";
+        final int length = -1_048_568;
+
+        // Act
+        thrown.expect(StringIndexOutOfBoundsException.class);
+        Formats.rightStr(str, length);
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void rightStrInputNotNullPositiveOutputNotNull() {
+
+        // Arrange
+        final String str = "!!!!!!!!";
+        final int length = 2_147_221_512;
+
+        // Act
+        final String retval = Formats.rightStr(str, length);
+
+        // Assert result
+        Assert.assertEquals("!!!!!!!!", retval);
+    }
+
+    @Test
+    public void shortNameInputNotNullPositivePositiveOutputNotNull() {
+
+        // Arrange
+        final String str = "!";
+        final int length = 1;
+        final int rightLength = 6;
+
+        // Act
+        final String retval = Formats.shortName(str, length, rightLength);
+
+        // Assert result
+        Assert.assertEquals("!", retval);
+    }
+
+    @Test
+    public void shortNameInputNotNullPositiveZeroOutputNotNull() {
+
+        // Arrange
+        final String str = "!!!!!!!!!!";
+        final int length = 4;
+        final int rightLength = 0;
+
+        // Act
+        final String retval = Formats.shortName(str, length, rightLength);
+
+        // Assert result
+        Assert.assertEquals("!...", retval);
+    }
+
+    @Test
+    public void shortNameInputNotNullZeroNegativeOutputStringIndexOutOfBoundsException() {
+
+        // Arrange
+        final String str = "!!!!!!!!!!";
+        final int length = 0;
+        final int rightLength = -19;
+
+        // Act
+        thrown.expect(StringIndexOutOfBoundsException.class);
+        Formats.shortName(str, length, rightLength);
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void toFixLengthSizeUnitInputNullOutputNotNull() {
+
+        // Arrange
+        final Long size = null;
+
+        // Act
+        final String retval = Formats.toFixLengthSizeUnit(size);
+
+        // Assert result
+        Assert.assertEquals("NaN", retval);
+    }
+
+    @Test
+    public void toFixLengthSizeUnitInputPositiveOutputNotNull() {
+
+        // Arrange
+        final Long size = 4_611_686_018_427_387_906L;
+
+        // Act
+        final String retval = Formats.toFixLengthSizeUnit(size);
+
+        // Assert result
+        Assert.assertEquals("4194304t", retval);
+    }
+
+    @Test
+    public void toMBInputNegativeOutputNotNull() {
+
+        // Arrange
+        final long bytes = -8L;
+
+        // Act
+        final String retval = Formats.toMB(bytes);
+
+        // Assert result
+        Assert.assertEquals("NaN", retval);
+    }
+
+    @Test
+    public void toMBInputPositiveOutputNotNull() {
+
+        // Arrange
+        final long bytes = 8L;
+
+        // Act
+        final String retval = Formats.toMB(bytes);
+
+        // Assert result
+        Assert.assertEquals("0m", retval);
+    }
+
+    @Test
+    public void toSizeUnitInputNegativeOutputNotNull() {
+
+        // Arrange
+        final Long size = -1023L;
+
+        // Act
+        final String retval = Formats.toSizeUnit(size);
+
+        // Assert result
+        Assert.assertEquals("-1023", retval);
+    }
+
+    @Test
+    public void toSizeUnitInputNullOutputNotNull() {
+
+        // Arrange
+        final Long size = null;
+
+        // Act
+        final String retval = Formats.toSizeUnit(size);
+
+        // Assert result
+        Assert.assertEquals("NaN", retval);
+    }
+
+    @Test
+    public void toSizeUnitInputPositiveOutputNotNull() {
+
+        // Arrange
+        final Long size = 45_312L;
+
+        // Act
+        final String retval = Formats.toSizeUnit(size);
+
+        // Assert result
+        Assert.assertEquals("44k", retval);
+    }
+
+    @Test
+    public void toSizeUnitWithColorInputNullNullOutputNullPointerException() {
+
+        // Arrange
+        final Long size = null;
+        final LongWarning warning = null;
+
+        // Act
+        thrown.expect(NullPointerException.class);
+        Formats.toSizeUnitWithColor(size, warning);
+
+        // Method is not expected to return due to exception thrown
+    }
+
+}

vjtop/src/test/java/com/vip/vjtools/vjtop/util/UtilsTest.java

@@ -0,0 +1,124 @@
+package com.vip.vjtools.vjtop.util;
+
+import com.vip.vjtools.vjtop.util.Utils;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class UtilsTest {
+
+    @Test
+    public void calcLoadInputNegativeZeroZeroOutputZero() {
+
+        // Arrange
+        final Long deltaCpuTime = -4_194_304L;
+        final long deltaUptime = 0L;
+        final long factor = 0L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime, factor);
+
+        // Assert result
+        Assert.assertEquals(0.0, retval, 0.0);
+    }
+
+    @Test
+    public void calcLoadInputPositivePositiveOutputPositive() {
+
+        // Arrange
+        final long deltaCpuTime = 558_348_370L;
+        final long deltaUptime = 1L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime);
+
+        // Assert result
+        Assert.assertEquals(0x1.a0008001p+35 /* 5.58348e+10 */, retval, 0.0);
+    }
+
+    @Test
+    public void calcLoadInputPositivePositiveZeroOutputPositiveInfinity() {
+
+        // Arrange
+        final Long deltaCpuTime = 4_194_304L;
+        final long deltaUptime = 4_611_686_018_427_387_904L;
+        final long factor = 0L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime, factor);
+
+        // Assert result
+        Assert.assertEquals(Double.POSITIVE_INFINITY, retval, 0.0);
+    }
+
+    @Test
+    public void calcLoadInputPositiveZeroOutputZero() {
+
+        // Arrange
+        final long deltaCpuTime = 558_348_370L;
+        final long deltaUptime = 0L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime);
+
+        // Assert result
+        Assert.assertEquals(0.0, retval, 0.0);
+    }
+
+    @Test
+    public void calcLoadInputPositiveZeroZeroOutputZero() {
+
+        // Arrange
+        final Long deltaCpuTime = 4_194_304L;
+        final long deltaUptime = 0L;
+        final long factor = 0L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime, factor);
+
+        // Assert result
+        Assert.assertEquals(0.0, retval, 0.0);
+    }
+
+    @Test
+    public void calcLoadInputZeroZeroOutputZero() {
+
+        // Arrange
+        final long deltaCpuTime = 0L;
+        final long deltaUptime = 0L;
+
+        // Act
+        final double retval = Utils.calcLoad(deltaCpuTime, deltaUptime);
+
+        // Assert result
+        Assert.assertEquals(0.0, retval, 0.0);
+    }
+
+    @Test
+    public void calcMemoryUtilizationInputNegativePositiveOutputNegative() {
+
+        // Arrange
+        final Long threadBytes = -507_680_768_073_012_547L;
+        final long totalBytes = 1_147_301_170_758_571_992L;
+
+        // Act
+        final double retval = Utils.calcMemoryUtilization(threadBytes, totalBytes);
+
+        // Assert result
+        Assert.assertEquals(-0x1.6200000024f82p+5 /* -44.25 */, retval, 0.0);
+    }
+
+    @Test
+    public void calcMemoryUtilizationInputPositiveZeroOutputZero() {
+
+        // Arrange
+        final Long threadBytes = 1L;
+        final long totalBytes = 0L;
+
+        // Act
+        final double retval = Utils.calcMemoryUtilization(threadBytes, totalBytes);
+
+        // Assert result
+        Assert.assertEquals(0.0, retval, 0.0);
+    }
+
+}