Refactor Periods to increase coverage

2 files changed, 287 insertions, 100 deletions

diff --git a/sonar-db/src/main/java/org/sonar/core/timemachine/Periods.java b/sonar-db/src/main/java/org/sonar/core/timemachine/Periods.java
index 0a9a41ba5d4..2765f3d8764 100644
--- a/sonar-db/src/main/java/org/sonar/core/timemachine/Periods.java
+++ b/sonar-db/src/main/java/org/sonar/core/timemachine/Periods.java
@@ -25,11 +25,18 @@ import java.util.Date;
 import java.util.Locale;
 import javax.annotation.CheckForNull;
 import javax.annotation.Nullable;
-import org.apache.commons.lang.StringUtils;
-import org.sonar.api.CoreProperties;
 import org.sonar.api.config.Settings;
 import org.sonar.api.i18n.I18n;
 
+import static com.google.common.base.Preconditions.checkArgument;
+import static org.apache.commons.lang.StringUtils.isNotBlank;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_DATE;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_DAYS;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_PREVIOUS_ANALYSIS;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_VERSION;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_PERIOD_PREFIX;
+
 public class Periods {
 
   private final Settings settings;
@@ -40,88 +47,103 @@ public class Periods {
     this.i18n = i18n;
   }
 
+  private static Locale getLocale() {
+    return Locale.ENGLISH;
+  }
+
+  @CheckForNull
+  private static String convertDate(@Nullable Date date) {
+    if (date != null) {
+      SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy MMM dd");
+      return dateFormat.format(date);
+    }
+    return null;
+  }
+
   @CheckForNull
   public String label(int periodIndex) {
-    String periodProperty = settings.getString(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex);
+    String periodProperty = settings.getString(TIMEMACHINE_PERIOD_PREFIX + periodIndex);
     PeriodParameters periodParameters = new PeriodParameters(periodProperty);
     return label(periodParameters.getMode(), periodParameters.getParam(), periodParameters.getDate());
   }
 
   @CheckForNull
   public String abbreviation(int periodIndex) {
-    String periodProperty = settings.getString(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex);
+    String periodProperty = settings.getString(TIMEMACHINE_PERIOD_PREFIX + periodIndex);
     PeriodParameters periodParameters = new PeriodParameters(periodProperty);
     return abbreviation(periodParameters.getMode(), periodParameters.getParam(), periodParameters.getDate());
   }
 
   @CheckForNull
-  public String label(String mode, String param, Date date) {
+  public String label(String mode, @Nullable String param, @Nullable Date date) {
     return label(mode, param, convertDate(date), false);
   }
 
   @CheckForNull
-  public String label(String mode, String param, String date) {
+  public String label(String mode, @Nullable String param, @Nullable String date) {
     return label(mode, param, date, false);
   }
 
   @CheckForNull
-  public String abbreviation(String mode, String param, Date date) {
+  public String abbreviation(String mode, @Nullable String param, @Nullable Date date) {
     return label(mode, param, convertDate(date), true);
   }
 
   @CheckForNull
   private String label(String mode, @Nullable String param, @Nullable String date, boolean shortLabel) {
-    String label;
-    if (CoreProperties.TIMEMACHINE_MODE_DAYS.equals(mode)) {
-      label = label("over_x_days", shortLabel, param);
-      if (date != null) {
-        label = label("over_x_days_detailed", shortLabel, param, date);
-      }
-    } else if (CoreProperties.TIMEMACHINE_MODE_VERSION.equals(mode)) {
-      label = label("since_version", shortLabel, param);
-      if (date != null) {
-        label = label("since_version_detailed", shortLabel, param, date);
-      }
-    } else if (CoreProperties.TIMEMACHINE_MODE_PREVIOUS_ANALYSIS.equals(mode)) {
-      label = label("since_previous_analysis", shortLabel);
-      if (date != null) {
-        label = label("since_previous_analysis_detailed", shortLabel, date);
-      }
-    } else if (CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION.equals(mode)) {
-      label = label("since_previous_version", shortLabel);
-      if (param != null) {
-        label = label("since_previous_version_detailed", shortLabel, param);
-        if (date != null) {
-          label = label("since_previous_version_detailed", shortLabel, param, date);
-        }
-      }
-    } else if (CoreProperties.TIMEMACHINE_MODE_DATE.equals(mode)) {
-      label = label("since_x", shortLabel, date);
-    } else {
-      throw new IllegalArgumentException("This mode is not supported : " + mode);
+    switch (mode) {
+      case TIMEMACHINE_MODE_DAYS:
+        return labelForDays(param, date, shortLabel);
+      case TIMEMACHINE_MODE_VERSION:
+        return labelForVersion(param, date, shortLabel);
+      case TIMEMACHINE_MODE_PREVIOUS_ANALYSIS:
+        return labelForPreviousAnalysis(date, shortLabel);
+      case TIMEMACHINE_MODE_PREVIOUS_VERSION:
+        return labelForPreviousVersion(param, date, shortLabel);
+      case TIMEMACHINE_MODE_DATE:
+        return label("since_x", shortLabel, date);
+      default:
+        throw new IllegalArgumentException("This mode is not supported : " + mode);
     }
-    return label;
   }
 
-  private String label(String key, boolean shortLabel, Object... parameters) {
-    String msgKey = key;
-    if (shortLabel) {
-      msgKey += ".short";
+  private String labelForDays(@Nullable String param, @Nullable String date, boolean shortLabel) {
+    if (date == null) {
+      return label("over_x_days", shortLabel, param);
     }
-    return i18n.message(getLocale(), msgKey, null, parameters);
+    return label("over_x_days_detailed", shortLabel, param, date);
   }
 
-  @CheckForNull
-  private static String convertDate(Date date) {
-    if (date != null) {
-      SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy MMM dd");
-      return dateFormat.format(date);
+  private String labelForVersion(@Nullable String param, @Nullable String date, boolean shortLabel) {
+    if (date == null) {
+      return label("since_version", shortLabel, param);
     }
-    return null;
+    return label("since_version_detailed", shortLabel, param, date);
   }
 
-  private static Locale getLocale() {
-    return Locale.ENGLISH;
+  private String labelForPreviousAnalysis(@Nullable String date, boolean shortLabel) {
+    if (date == null) {
+      return label("since_previous_analysis", shortLabel);
+    }
+    return label("since_previous_analysis_detailed", shortLabel, date);
+  }
+
+  private String labelForPreviousVersion(@Nullable String param, @Nullable String date, boolean shortLabel) {
+    if (param == null) {
+      return label("since_previous_version", shortLabel);
+    }
+    if (date == null) {
+      return label("since_previous_version_detailed", shortLabel, param);
+    }
+    return label("since_previous_version_detailed", shortLabel, param, date);
+  }
+
+  private String label(String key, boolean shortLabel, Object... parameters) {
+    String msgKey = key;
+    if (shortLabel) {
+      msgKey += ".short";
+    }
+    return i18n.message(getLocale(), msgKey, null, parameters);
   }
 
   private static class PeriodParameters {
@@ -131,19 +153,20 @@ public class Periods {
     private Date date = null;
 
     public PeriodParameters(String periodProperty) {
-      if (CoreProperties.TIMEMACHINE_MODE_PREVIOUS_ANALYSIS.equals(periodProperty) || CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION.equals(periodProperty)) {
+      checkArgument(isNotBlank(periodProperty), "Period property should not be empty");
+      Integer possibleDaysValue = findByDays(periodProperty);
+      Date possibleDatesValue = findByDate(periodProperty);
+      if (TIMEMACHINE_MODE_PREVIOUS_ANALYSIS.equals(periodProperty) || TIMEMACHINE_MODE_PREVIOUS_VERSION.equals(periodProperty)) {
         mode = periodProperty;
-      } else if (findByDays(periodProperty) != null) {
-        mode = CoreProperties.TIMEMACHINE_MODE_DAYS;
-        param = Integer.toString(findByDays(periodProperty));
-      } else if (findByDate(periodProperty) != null) {
-        mode = CoreProperties.TIMEMACHINE_MODE_DATE;
-        date = findByDate(periodProperty);
-      } else if (StringUtils.isNotBlank(periodProperty)) {
-        mode = CoreProperties.TIMEMACHINE_MODE_VERSION;
-        param = periodProperty;
+      } else if (possibleDaysValue != null) {
+        mode = TIMEMACHINE_MODE_DAYS;
+        param = Integer.toString(possibleDaysValue);
+      } else if (possibleDatesValue != null) {
+        mode = TIMEMACHINE_MODE_DATE;
+        date = possibleDatesValue;
       } else {
-        throw new IllegalArgumentException("Unknown period property : " + periodProperty);
+        mode = TIMEMACHINE_MODE_VERSION;
+        param = periodProperty;
       }
     }
 
diff --git a/sonar-db/src/test/java/org/sonar/core/timemachine/PeriodsTest.java b/sonar-db/src/test/java/org/sonar/core/timemachine/PeriodsTest.java
index f48e5b3396a..fc1e34b98fe 100644
--- a/sonar-db/src/test/java/org/sonar/core/timemachine/PeriodsTest.java
+++ b/sonar-db/src/test/java/org/sonar/core/timemachine/PeriodsTest.java
@@ -17,100 +17,264 @@
  * along with this program; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
+
 package org.sonar.core.timemachine;
 
+import java.util.Date;
 import java.util.Locale;
+import org.junit.Rule;
 import org.junit.Test;
-import org.sonar.api.CoreProperties;
+import org.junit.rules.ExpectedException;
 import org.sonar.api.config.Settings;
 import org.sonar.api.i18n.I18n;
 
+import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.anyString;
 import static org.mockito.Mockito.eq;
 import static org.mockito.Mockito.isNull;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.verify;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_DATE;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_DAYS;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_PREVIOUS_ANALYSIS;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_MODE_VERSION;
+import static org.sonar.api.CoreProperties.TIMEMACHINE_PERIOD_PREFIX;
+import static org.sonar.api.utils.DateUtils.parseDate;
 
 public class PeriodsTest {
 
+  static String NUMBER_OF_DAYS = "5";
+  static String STRING_DATE = "2015-01-01";
+  static Date DATE = parseDate(STRING_DATE);
+  static String VERSION = "1.1";
+  static int PERIOD_INDEX = 1;
+  @Rule
+  public ExpectedException thrown = ExpectedException.none();
   Settings settings = new Settings();
   I18n i18n = mock(I18n.class);
   Periods periods = new Periods(settings, i18n);
 
   @Test
-  public void shouldReturnLabelInModeDays() {
-    int periodIndex = 1;
-    String days = "5";
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, days);
+  public void return_over_x_days_label_when_no_date() {
+    periods.label(TIMEMACHINE_MODE_DAYS, NUMBER_OF_DAYS, (String) null);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days"), isNull(String.class), eq(NUMBER_OF_DAYS));
+  }
+
+  @Test
+  public void return_over_x_days_abbreviation_when_no_date() {
+    periods.abbreviation(TIMEMACHINE_MODE_DAYS, NUMBER_OF_DAYS, null);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days.short"), isNull(String.class), eq(NUMBER_OF_DAYS));
+  }
+
+  @Test
+  public void return_over_x_days_detailed_label_when_date_is_set() {
+    periods.label(TIMEMACHINE_MODE_DAYS, NUMBER_OF_DAYS, STRING_DATE);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days_detailed"), isNull(String.class), eq(NUMBER_OF_DAYS), eq(STRING_DATE));
+  }
+
+  @Test
+  public void return_over_x_days_detailed_abbreviation_when_date_is_set() {
+    periods.abbreviation(TIMEMACHINE_MODE_DAYS, NUMBER_OF_DAYS, DATE);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days_detailed.short"), isNull(String.class), eq(NUMBER_OF_DAYS), anyString());
+  }
+
+  @Test
+  public void return_over_x_days_label_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, NUMBER_OF_DAYS);
+
+    periods.label(PERIOD_INDEX);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days"), isNull(String.class), eq(NUMBER_OF_DAYS));
+  }
+
+  @Test
+  public void return_since_version_label_when_no_date() {
+    periods.label(TIMEMACHINE_MODE_VERSION, VERSION, (String) null);
+
+    verify(i18n).message(any(Locale.class), eq("since_version"), isNull(String.class), eq(VERSION));
+  }
+
+  @Test
+  public void return_since_version_abbreviation_when_no_date() {
+    periods.abbreviation(TIMEMACHINE_MODE_VERSION, VERSION, null);
+
+    verify(i18n).message(any(Locale.class), eq("since_version.short"), isNull(String.class), eq(VERSION));
+  }
+
+  @Test
+  public void return_since_version_detailed_label_when_date_is_set() {
+    periods.label(TIMEMACHINE_MODE_VERSION, VERSION, STRING_DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_version_detailed"), isNull(String.class), eq(VERSION), eq(STRING_DATE));
+  }
+
+  @Test
+  public void return_since_version_detailed_abbreviation_when_date_is_set() {
+    periods.abbreviation(TIMEMACHINE_MODE_VERSION, VERSION, DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_version_detailed.short"), isNull(String.class), eq(VERSION), anyString());
+  }
+
+  @Test
+  public void return_since_version_label_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, VERSION);
+
+    periods.label(PERIOD_INDEX);
+
+    verify(i18n).message(any(Locale.class), eq("since_version"), isNull(String.class), eq(VERSION));
+  }
+
+  @Test
+  public void return_since_previous_analysis_label_when_no_date() {
+    periods.label(TIMEMACHINE_MODE_PREVIOUS_ANALYSIS, null, (String) null);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_analysis"), isNull(String.class));
+  }
+
+  @Test
+  public void return_since_previous_analysis_abbreviation_when_no_date() {
+    periods.abbreviation(TIMEMACHINE_MODE_PREVIOUS_ANALYSIS, null, null);
 
-    periods.label(periodIndex);
-    verify(i18n).message(any(Locale.class), eq("over_x_days"), isNull(String.class), eq(days));
+    verify(i18n).message(any(Locale.class), eq("since_previous_analysis.short"), isNull(String.class));
   }
 
   @Test
-  public void shouldReturnLabelInModeVersion() {
-    int periodIndex = 1;
-    String version = "3.5";
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, version);
+  public void return_since_previous_analysis_detailed_label_when_date_is_set() {
+    periods.label(TIMEMACHINE_MODE_PREVIOUS_ANALYSIS, null, STRING_DATE);
 
-    periods.label(periodIndex);
-    verify(i18n).message(any(Locale.class), eq("since_version"), isNull(String.class), eq(version));
+    verify(i18n).message(any(Locale.class), eq("since_previous_analysis_detailed"), isNull(String.class), eq(STRING_DATE));
   }
 
   @Test
-  public void shouldReturnLabelInModePreviousAnalysis() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, CoreProperties.TIMEMACHINE_MODE_PREVIOUS_ANALYSIS);
+  public void return_since_previous_analysis_detailed_abbreviation_when_date_is_set() {
+    periods.abbreviation(TIMEMACHINE_MODE_PREVIOUS_ANALYSIS, null, DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_analysis_detailed.short"), isNull(String.class), anyString());
+  }
+
+  @Test
+  public void return_since_previous_analysis_label_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, TIMEMACHINE_MODE_PREVIOUS_ANALYSIS);
+
+    periods.label(PERIOD_INDEX);
 
-    periods.label(periodIndex);
     verify(i18n).message(any(Locale.class), eq("since_previous_analysis"), isNull(String.class));
   }
 
   @Test
-  public void label_of_previous_version() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION);
+  public void return_since_previous_version_label_when_no_param() {
+    periods.label(TIMEMACHINE_MODE_PREVIOUS_VERSION, null, (String) null);
 
-    periods.label(periodIndex);
     verify(i18n).message(any(Locale.class), eq("since_previous_version"), isNull(String.class));
   }
 
   @Test
-  public void abbreviation_of_previous_version() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, CoreProperties.TIMEMACHINE_MODE_PREVIOUS_VERSION);
+  public void return_since_previous_version_abbreviation_when_no_param() {
+    periods.abbreviation(TIMEMACHINE_MODE_PREVIOUS_VERSION, null, null);
 
-    periods.abbreviation(periodIndex);
     verify(i18n).message(any(Locale.class), eq("since_previous_version.short"), isNull(String.class));
   }
 
   @Test
-  public void label_of_date() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, "2012-12-12");
+  public void return_since_previous_version_detailed_label_when_param_is_set_and_no_date() {
+    periods.label(TIMEMACHINE_MODE_PREVIOUS_VERSION, VERSION, (String) null);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_version_detailed"), isNull(String.class), eq(VERSION));
+  }
+
+  @Test
+  public void return_since_previous_version_detailed_abbreviation_when_param_is_set_and_no_date() {
+    periods.abbreviation(TIMEMACHINE_MODE_PREVIOUS_VERSION, VERSION, null);
 
-    periods.label(periodIndex);
+    verify(i18n).message(any(Locale.class), eq("since_previous_version_detailed.short"), isNull(String.class), eq(VERSION));
+  }
 
-    verify(i18n).message(any(Locale.class), eq("since_x"), isNull(String.class), anyString());
+  @Test
+  public void return_since_previous_version_detailed_label_when_param_and_date_are_set() {
+    periods.label(TIMEMACHINE_MODE_PREVIOUS_VERSION, VERSION, STRING_DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_version_detailed"), isNull(String.class), eq(VERSION), eq(STRING_DATE));
+  }
+
+  @Test
+  public void return_since_previous_version_detailed_abbreviation_when_param_and_date_are_set() {
+    periods.abbreviation(TIMEMACHINE_MODE_PREVIOUS_VERSION, VERSION, DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_version_detailed.short"), isNull(String.class), eq(VERSION), anyString());
+  }
+
+  @Test
+  public void return_since_previous_version_label_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, TIMEMACHINE_MODE_PREVIOUS_VERSION);
+
+    periods.label(PERIOD_INDEX);
+
+    verify(i18n).message(any(Locale.class), eq("since_previous_version"), isNull(String.class));
+  }
+
+  @Test
+  public void return_since_x_label() {
+    periods.label(TIMEMACHINE_MODE_DATE, null, STRING_DATE);
+
+    verify(i18n).message(any(Locale.class), eq("since_x"), isNull(String.class), eq(STRING_DATE));
   }
 
   @Test
-  public void abbreviation_of_date() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, "2012-12-12");
+  public void return_since_x_label_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, STRING_DATE);
+
+    periods.label(PERIOD_INDEX);
+
+    verify(i18n).message(any(Locale.class), eq("since_x"), isNull(String.class), anyString());
+  }
 
-    periods.abbreviation(periodIndex);
+  @Test
+  public void return_since_x_abbreviation() {
+    periods.abbreviation(TIMEMACHINE_MODE_DATE, null, DATE);
 
     verify(i18n).message(any(Locale.class), eq("since_x.short"), isNull(String.class), anyString());
   }
 
-  @Test(expected = IllegalArgumentException.class)
-  public void shouldNotSupportUnknownModeForLabel() {
-    int periodIndex = 1;
-    settings.setProperty(CoreProperties.TIMEMACHINE_PERIOD_PREFIX + periodIndex, "");
+  @Test
+  public void throw_IAE_when_mode_is_unknown() {
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("This mode is not supported : unknown");
+
+    periods.label("unknown", null, (String) null);
+  }
+
+  @Test
+  public void return_abbreviation_using_settings() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, NUMBER_OF_DAYS);
+
+    periods.abbreviation(PERIOD_INDEX);
+
+    verify(i18n).message(any(Locale.class), eq("over_x_days.short"), isNull(String.class), eq(NUMBER_OF_DAYS));
+  }
+
+  @Test
+  public void throw_IAE_when_period_property_is_empty() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, "");
+
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("Period property should not be empty");
+
+    periods.label(PERIOD_INDEX);
+  }
+
+  @Test
+  public void throw_IAE_when_period_property_is_null() {
+    settings.setProperty(TIMEMACHINE_PERIOD_PREFIX + PERIOD_INDEX, (String) null);
+
+    thrown.expect(IllegalArgumentException.class);
+    thrown.expectMessage("Period property should not be empty");
 
-    periods.label(periodIndex);
+    periods.label(PERIOD_INDEX);
   }
 
 }