diff options
Diffstat (limited to 'src/test/java/sevenUnits/unit/UnitDatabaseTest.java')
| -rw-r--r-- | src/test/java/sevenUnits/unit/UnitDatabaseTest.java | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/java/sevenUnits/unit/UnitDatabaseTest.java b/src/test/java/sevenUnits/unit/UnitDatabaseTest.java index 31323a7..7612fc5 100644 --- a/src/test/java/sevenUnits/unit/UnitDatabaseTest.java +++ b/src/test/java/sevenUnits/unit/UnitDatabaseTest.java @@ -36,6 +36,8 @@ import org.junit.jupiter.api.Test; import org.junit.jupiter.params.ParameterizedTest; import org.junit.jupiter.params.provider.ValueSource; +import sevenUnits.utils.UncertainDouble; + /** * A test for the {@link UnitDatabase} class. This is NOT part of this program's * public API. @@ -88,6 +90,31 @@ class UnitDatabaseTest { } /** + * A test for the {@link UnitDatabase#evaluateUnitExpression(String)} + * function. Simple because the expression parser has its own test. + * + * @since 2021-09-27 + */ + @Test + public void testEvaluateExpression() { + final UnitDatabase database = new UnitDatabase(); + + database.addUnit("J", J); + database.addUnit("K", K); + + database.addPrefix("A", A); + database.addPrefix("B", B); + database.addPrefix("C", C); + + final LinearUnitValue expected = LinearUnitValue.of(J, + UncertainDouble.of(12, Math.sqrt(14.625))); + // note: units are exact, each number has an uncertainty of 1 + final LinearUnitValue actual = database + .evaluateUnitExpression("J + (2 * 3) J + (20 / 4) J"); + assertEquals(expected, actual); + } + + /** * Confirms that operations that shouldn't function for infinite databases * throw an {@code IllegalStateException}. * |