diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..b8dc315 --- /dev/null +++ b/.gitignore @@ -0,0 +1,71 @@ +.DS_Store +.idea/shelf +/confluence/target +/dependencies/repo +/android.tests.dependencies +/dependencies/android.tests.dependencies +/dist +/local +/gh-pages +/ideaSDK +/clionSDK +/android-studio/sdk +out/ +/tmp +/intellij +workspace.xml +*.versionsBackup +/idea/testData/debugger/tinyApp/classes* +/jps-plugin/testData/kannotator +/js/js.translator/testData/out/ +/js/js.translator/testData/out-min/ +/js/js.translator/testData/out-pir/ +.gradle/ +build/ +!**/src/**/build +!**/test/**/build +*.iml +!**/testData/**/*.iml +.idea/libraries/Gradle*.xml +.idea/libraries/Maven*.xml +.idea/artifacts/PILL_*.xml +.idea/artifacts/KotlinPlugin.xml +.idea/modules +.idea/runConfigurations/JPS_*.xml +.idea/runConfigurations/PILL_*.xml +.idea/runConfigurations/_FP_*.xml +.idea/runConfigurations/_MT_*.xml +.idea/libraries +.idea/modules.xml +.idea/gradle.xml +.idea/compiler.xml +.idea/inspectionProfiles/profiles_settings.xml +.idea/.name +.idea/artifacts/dist_auto_* +.idea/artifacts/dist.xml +.idea/artifacts/ideaPlugin.xml +.idea/artifacts/kotlinc.xml +.idea/artifacts/kotlin_compiler_jar.xml +.idea/artifacts/kotlin_plugin_jar.xml +.idea/artifacts/kotlin_jps_plugin_jar.xml +.idea/artifacts/kotlin_daemon_client_jar.xml +.idea/artifacts/kotlin_imports_dumper_compiler_plugin_jar.xml +.idea/artifacts/kotlin_main_kts_jar.xml +.idea/artifacts/kotlin_compiler_client_embeddable_jar.xml +.idea/artifacts/kotlin_reflect_jar.xml +.idea/artifacts/kotlin_stdlib_js_ir_* +.idea/artifacts/kotlin_test_js_ir_* +.idea/artifacts/kotlin_stdlib_wasm_* +.idea/jarRepositories.xml +.idea/csv-plugin.xml +.idea/libraries-with-intellij-classes.xml +node_modules/ +.rpt2_cache/ +libraries/tools/kotlin-test-js-runner/lib/ +local.properties +buildSrcTmp/ +distTmp/ +outTmp/ +/test.output +/kotlin-native/dist +kotlin-ide/ \ No newline at end of file diff --git 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a/.gradle/checksums/checksums.lock b/.gradle/checksums/checksums.lock new file mode 100644 index 0000000..e6c9c89 Binary files /dev/null and b/.gradle/checksums/checksums.lock differ diff --git a/.gradle/checksums/md5-checksums.bin b/.gradle/checksums/md5-checksums.bin new file mode 100644 index 0000000..eb2175a Binary files /dev/null and b/.gradle/checksums/md5-checksums.bin differ diff --git a/.gradle/checksums/sha1-checksums.bin b/.gradle/checksums/sha1-checksums.bin new file mode 100644 index 0000000..64f96fe Binary files /dev/null and b/.gradle/checksums/sha1-checksums.bin differ diff --git a/.gradle/configuration-cache/gc.properties b/.gradle/configuration-cache/gc.properties new file mode 100644 index 0000000..e69de29 diff --git a/.gradle/vcs-1/gc.properties b/.gradle/vcs-1/gc.properties new file mode 100644 index 0000000..e69de29 diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..73f69e0 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml +# Editor-based HTTP Client requests +/httpRequests/ diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100644 index 0000000..61a9130 --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/gradle.xml b/.idea/gradle.xml new file mode 100644 index 0000000..611e7c8 --- /dev/null +++ b/.idea/gradle.xml @@ -0,0 +1,17 @@ + + + + + + + \ No newline at end of file diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml new file mode 100644 index 0000000..fdc392f --- /dev/null +++ b/.idea/jarRepositories.xml @@ -0,0 +1,20 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/libraries-with-intellij-classes.xml b/.idea/libraries-with-intellij-classes.xml new file mode 100644 index 0000000..9fa3156 --- /dev/null +++ b/.idea/libraries-with-intellij-classes.xml @@ -0,0 +1,65 @@ + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..2266f6b --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,10 @@ + + + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..94a25f7 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/build.gradle b/build.gradle new file mode 100644 index 0000000..632cc21 --- /dev/null +++ b/build.gradle @@ -0,0 +1,24 @@ +plugins { + id 'java' + id 'org.jetbrains.kotlin.jvm' version '1.4.32' +} + +group 'org.example' +version '1.0-SNAPSHOT' + +repositories { + mavenCentral() +} + +dependencies { + implementation "org.jetbrains.kotlin:kotlin-stdlib" + implementation 'junit:junit:4.13.1' + testImplementation 'org.junit.jupiter:junit-jupiter-api:5.7.0' + testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.7.0' + testImplementation 'org.jetbrains.kotlin:kotlin-test' + testImplementation 'org.assertj:assertj-core:3.13.2' +} + +test { + useJUnitPlatform() +} \ No newline at end of file diff --git a/gradle.properties b/gradle.properties new file mode 100644 index 0000000..29e08e8 --- /dev/null +++ b/gradle.properties @@ -0,0 +1 @@ +kotlin.code.style=official \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..e708b1c Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..da9702f --- /dev/null +++ b/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,5 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-6.8-bin.zip +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/gradlew b/gradlew new file mode 100755 index 0000000..4f906e0 --- /dev/null +++ b/gradlew @@ -0,0 +1,185 @@ +#!/usr/bin/env sh + +# +# Copyright 2015 the original author or authors. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# https://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +############################################################################## +## +## Gradle start up script for UN*X +## +############################################################################## + +# Attempt to set APP_HOME +# Resolve links: $0 may be a link +PRG="$0" +# Need this for relative symlinks. +while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG=`dirname "$PRG"`"/$link" + fi +done +SAVED="`pwd`" +cd "`dirname \"$PRG\"`/" >/dev/null +APP_HOME="`pwd -P`" +cd "$SAVED" >/dev/null + +APP_NAME="Gradle" +APP_BASE_NAME=`basename "$0"` + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD="maximum" + +warn () { + echo "$*" +} + +die () { + echo + echo "$*" + echo + exit 1 +} + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "`uname`" in + CYGWIN* ) + cygwin=true + ;; + Darwin* ) + darwin=true + ;; + MINGW* ) + msys=true + ;; + NONSTOP* ) + nonstop=true + ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD="java" + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then + MAX_FD_LIMIT=`ulimit -H -n` + if [ $? -eq 0 ] ; then + if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then + MAX_FD="$MAX_FD_LIMIT" + fi + ulimit -n $MAX_FD + if [ $? -ne 0 ] ; then + warn "Could not set maximum file descriptor limit: $MAX_FD" + fi + else + warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" + fi +fi + +# For Darwin, add options to specify how the application appears in the dock +if $darwin; then + GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" +fi + +# For Cygwin or MSYS, switch paths to Windows format before running java +if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then + APP_HOME=`cygpath --path --mixed "$APP_HOME"` + CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` + + JAVACMD=`cygpath --unix "$JAVACMD"` + + # We build the pattern for arguments to be converted via cygpath + ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` + SEP="" + for dir in $ROOTDIRSRAW ; do + ROOTDIRS="$ROOTDIRS$SEP$dir" + SEP="|" + done + OURCYGPATTERN="(^($ROOTDIRS))" + # Add a user-defined pattern to the cygpath arguments + if [ "$GRADLE_CYGPATTERN" != "" ] ; then + OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" + fi + # Now convert the arguments - kludge to limit ourselves to /bin/sh + i=0 + for arg in "$@" ; do + CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` + CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option + + if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition + eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` + else + eval `echo args$i`="\"$arg\"" + fi + i=`expr $i + 1` + done + case $i in + 0) set -- ;; + 1) set -- "$args0" ;; + 2) set -- "$args0" "$args1" ;; + 3) set -- "$args0" "$args1" "$args2" ;; + 4) set -- "$args0" "$args1" "$args2" "$args3" ;; + 5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; + 6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; + 7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; + 8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; + 9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; + esac +fi + +# Escape application args +save () { + for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done + echo " " +} +APP_ARGS=`save "$@"` + +# Collect all arguments for the java command, following the shell quoting and substitution rules +eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 0000000..ac1b06f --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,89 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%" == "" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%" == "" set DIRNAME=. +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if "%ERRORLEVEL%" == "0" goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if "%ERRORLEVEL%"=="0" goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 +exit /b 1 + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 0000000..15bab13 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,2 @@ +rootProject.name = 'cleancode-study' + diff --git a/src/main/kotlin/calculator/Calculator.kt b/src/main/kotlin/calculator/Calculator.kt new file mode 100644 index 0000000..1a3aeb5 --- /dev/null +++ b/src/main/kotlin/calculator/Calculator.kt @@ -0,0 +1,75 @@ +package calculator + +import java.io.BufferedReader +import java.io.BufferedWriter +import java.io.InputStreamReader +import java.io.OutputStreamWriter +import java.lang.IllegalArgumentException +import java.util.* + +class Calculator( + _expression: String +) { + val expression: String + var result: Int = 0 + var operator: String ?= null + var operand: Int = 0 + + init { + if (_expression == " ") + throw IllegalArgumentException("Wrong input") + else + expression = _expression + } + + fun calculate() { + result = when (operator) { + "+" -> add(result, operand) + "-" -> subtract(result, operand) + "*" -> multiply(result, operand) + "/" -> divide(result, operand) + else -> throw throw IllegalArgumentException("Not a valid operator") + } + } + + companion object { + internal fun add(x: Int, y: Int): Int { + return x + y + } + + internal fun subtract(x: Int, y: Int): Int { + return x - y + } + + internal fun multiply(x: Int, y: Int): Int { + return x * y + } + + internal fun divide(x: Int, y: Int): Int { + return x / y + } + } +} + +private fun getExpressionFromUser(): String { + val bufferedReader = BufferedReader(InputStreamReader(System.`in`)) + val expression = bufferedReader.readLine() + bufferedReader.close() + return expression +} + +fun main(args: Array) { + val bufferedWriter = BufferedWriter(OutputStreamWriter(System.`out`)) + val calculator = Calculator(getExpressionFromUser()) + val token = StringTokenizer(calculator.expression, " ") + + calculator.result = token.nextToken().toInt() + while(token.hasMoreTokens()) { + calculator.operator = token.nextToken() + calculator.operand = token.nextToken().toInt() + calculator.calculate() + } + + bufferedWriter.write(calculator.result.toString()) + bufferedWriter.close() +} \ No newline at end of file diff --git a/src/test/kotlin/calculator/CalculatorTest.kt b/src/test/kotlin/calculator/CalculatorTest.kt new file mode 100644 index 0000000..174b543 --- /dev/null +++ b/src/test/kotlin/calculator/CalculatorTest.kt @@ -0,0 +1,47 @@ +package calculator + +import org.assertj.core.api.Assertions.assertThatExceptionOfType +import org.junit.jupiter.api.Test +import kotlin.test.assertEquals + +class CalculatorTest { + @Test + fun testWhiteSpace() { + assertThatExceptionOfType(IllegalArgumentException::class.java).isThrownBy { + val calculator = Calculator(" ") + calculator.expression + }.withMessageMatching("Wrong input") + } + + @Test + fun testOperator() { + assertThatExceptionOfType(IllegalArgumentException::class.java).isThrownBy { + val calculator = Calculator("1 3 2") + calculator.calculate() + }.withMessageMatching("Not a valid operator") + } + + @Test + fun testAdd() { + val expected = 5 + assertEquals(expected, Calculator.add(2, 3)) + } + + @Test + fun testSubtract() { + val expected = 1 + assertEquals(expected, Calculator.subtract(3, 2)) + } + + @Test + fun testMultiply() { + val expected = 6 + assertEquals(expected, Calculator.multiply(2, 3)) + } + + @Test + fun testDivide() { + val expected = 2 + assertEquals(expected, Calculator.divide(4, 2)) + } +} \ No newline at end of file