Examples of PatternVariantBuilder

org.jbehave.core.steps.PatternVariantBuilder
Builds a set of pattern variants of given pattern input, supporting a custom directives. Depending on the directives present, one or more resulting variants are created.

Currently supported directives are
Pattern Result
..A {x|y} B..

..A x B..

..A y B..
..A {x|y|} B..

..A x B..

..A y B..

..A B..
..A {x} B..

..A x B..
These directives can be used to conveniently create several variants of a step pattern, without having to repeat it as a whole as one or more aliases.

Examples:
- "the result {must |has to |}be $x") public void checkResult(int x)...
  
  Would match any of these variants from a story file:
  - Then the result must be 42
  - Then the result has to be 42
  - Then the result be 42
- "$A {+|plus|is added to} $B") public void add(int A, int B)...
  
  Would match any of these variants from a story file:
  - When 42 + 23
  - When 42 plus 23
  - When 42 is added to 23
@author Daniel Schneller

Pattern	Result
..A {x\|y} B..	..A x B.. ..A y B..
..A {x\|y\|} B..	..A x B.. ..A y B.. ..A B..
..A {x} B..	..A x B..

Examples of org.jbehave.core.steps.PatternVariantBuilder


public class PatternVariantBuilderBehaviour {
  
  @Test
  public void shouldReturnItselfForNoPatternString() {
    PatternVariantBuilder builder = new PatternVariantBuilder("No variants");
        assertEquals("No variants", builder.getInput());
    Set<String> variants = builder.allVariants();
        assertEquals("No variants", variants.iterator().next());
        assertEquals(1, variants.size());
  }

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Examples of org.jbehave.core.steps.PatternVariantBuilder

        assertEquals(1, variants.size());
  }


  @Test
  public void shouldReturnTwoVariantsForOnePattern() {
    PatternVariantBuilder builder = new PatternVariantBuilder("There are {Two|One} variants");
        assertEquals("There are {Two|One} variants", builder.getInput());
        Set<String> result = builder.allVariants();
    assertEquals(2, result.size());
    assertTrue(result.contains("There are One variants"));
    assertTrue(result.contains("There are Two variants"));
  }

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("There are Two variants"));
  }


  @Test
  public void shouldReturnFourVariantsForTwoPatterns() {
    PatternVariantBuilder builder = new PatternVariantBuilder("There are {Two|One} variants, {hooray|alas}!");
        Set<String> result = builder.allVariants();
    assertEquals(4, result.size());
    assertTrue(result.contains("There are One variants, hooray!"));
    assertTrue(result.contains("There are Two variants, hooray!"));
    assertTrue(result.contains("There are One variants, alas!"));
    assertTrue(result.contains("There are Two variants, alas!"));

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("There are Two variants, alas!"));
  }


  @Test
  public void shouldReturnFourVariantsForTwoPatternsWithOptionElements() {
    PatternVariantBuilder builder = new PatternVariantBuilder("There are {One|} variants{, hooray|}!");
        Set<String> result = builder.allVariants();
        assertEquals(4, result.size());
    assertTrue(result.contains("There are One variants, hooray!"));
    assertTrue(result.contains("There are  variants, hooray!"));
    assertTrue(result.contains("There are One variants!"));
    assertTrue(result.contains("There are  variants!"));

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("There are  variants!"));
  }


  @Test
  public void shouldReturnFourVariantsForTwoPatternsWithOptionElementsWithWhitespaceCompression() {
    PatternVariantBuilder builder = new PatternVariantBuilder("There are {One|} variants{, hooray|}!");
    Set<String> result = builder.allVariants(true); // collapse whitespaces to 1
        assertEquals(4, result.size());
    assertTrue(result.contains("There are One variants, hooray!"));
    assertTrue(result.contains("There are variants, hooray!"));
    assertTrue(result.contains("There are One variants!"));
    assertTrue(result.contains("There are variants!"));

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("There are variants!"));
  }
  
  @Test
  public void shouldHandleSpecialCharacters() {
    PatternVariantBuilder builder = new PatternVariantBuilder("When $A {+|plus|is added to} $B");
    Set<String> result = builder.allVariants();
        assertEquals(3, result.size());
    assertTrue(result.contains("When $A + $B"));
    assertTrue(result.contains("When $A plus $B"));
    assertTrue(result.contains("When $A is added to $B"));
  }

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("When $A is added to $B"));
  }


  @Test
  public void hasUnclosedBracket() {
    PatternVariantBuilder builder = new PatternVariantBuilder("When $A {+|plus|is added to $B");
    Set<String> result = builder.allVariants();
        assertEquals(1, result.size());
    assertTrue(result.contains("When $A {+|plus|is added to $B"));
  }

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Examples of org.jbehave.core.steps.PatternVariantBuilder

    assertTrue(result.contains("When $A {+|plus|is added to $B"));
  }


  @Test
  public void hasUnclosedBrackets() {
        PatternVariantBuilder builder = new PatternVariantBuilder("When $A {+|plus|is added to} $B and }{$C");
        Set<String> result = builder.allVariants();
        assertEquals(3, result.size());
        assertTrue(result.contains("When $A + $B and }{$C"));
        assertTrue(result.contains("When $A plus $B and }{$C"));
        assertTrue(result.contains("When $A is added to $B and }{$C"));
  }

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